著者

Taiji Noguchi Fumi Kondo Takeshi Nishiyama Takahiro Otani Hiroko Nakagawa-Senda Miki Watanabe Nahomi Imaeda Chiho Goto Akihiro Hosono Kiyoshi Shibata Hiroyuki Kamishima Akane Nogimura Kenji Nagaya Tamaki Yamada Sadao Suzuki

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200343, (Released:2020-10-17)

参考文献数

37

被引用文献数

1

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Background: Marital transitions are associated with adverse health events, such as mortality and cardiovascular disease. Since marital transitions (e.g., becoming widowed) are unavoidable life events, it is necessary to identify modifiable intermediate outcomes. Thus, we examined the association between marital transitions and vegetable intake among middle-aged and older Japanese adults.Methods: This longitudinal study included Japanese adults aged 40–79 years who received an annual health checkup between 2007 and 2011 (baseline) and five years later (follow-up). Marital transitions were classified as whether and what type of transition occurred during the five-year period and comprised five groups: consistently married, married to widowed, married to divorced, not married to married, and remained not married. Changes in total vegetable, green and yellow vegetable, and light-colored vegetable intake from baseline to follow-up were calculated using the Food Frequency Questionnaire.Results: Data from 4813 participants were analyzed (mean age: 59.4 years; 44.1% women). Regarding marital transitions, 3,960 participants were classified as “consistently married,” 135 as “married to widowed,” 40 as “married to divorced,” 60 as “not married to married,” and 529 as “remained not married.” Multivariable linear regression analysis revealed that compared to consistently married, married to widowed was inversely associated with the change in total vegetable intake (β = -16.64, SE = 7.68, p = 0.030) and light-colored vegetable intake (β = -11.46, SE = 4.33, p = 0.008).Conclusion: Our findings suggest that being widowed could result in a reduced intake of vegetables. Hence, dietary counseling according to marital situation is necessary.

著者

Masamitsu Kamada Jun Kitayuguchi I-Min Lee Tsuyoshi Hamano Fumiaki Imamura Shigeru Inoue Motohiko Miyachi Kuninori Shiwaku

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.24, no.6, pp.474-483, 2014-11-05 (Released:2014-11-05)

参考文献数

56

被引用文献数

18 26

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Background: Both little and excessive physical activity (PA) may relate to chronic musculoskeletal pain. The primary objective of this study was to characterize the relationship of PA levels with chronic low back pain (CLBP) and chronic knee pain (CKP).Methods: We evaluated 4559 adults aged 40–79 years in a community-based cross-sectional survey conducted in 2009 in Shimane, Japan. We used self-administered questionnaires to assess sociodemographics and health status: PA was assessed by the International Physical Activity Questionnaire, and CLBP and CKP were assessed by a modified version of the Knee Pain Screening Tool. We examined relationships of PA with prevalence of CLBP and CKP using Poisson regression, controlling for potential confounders.Results: CLBP and CKP were both prevalent (14.1% and 10.7%, respectively) and associated with history of injury, medication use, and consultation with physicians. PA was not significantly related to CLBP or CKP (P > 0.05) before or after adjustment for potential confounders. For example, compared with adults reporting moderate PA (8.25–23.0 MET-hours/week), prevalence ratios for CKP adjusted for sex, age, education years, self-rated health, depressive symptom, smoking, chronic disease history, and body-mass index were 1.12 (95% confidential interval [CI] 0.84–1.50) among those with the lowest PA and 1.26 (95% CI 0.93–1.70) among those with the highest PA (P quadratic = 0.08). The prevalence ratios were further attenuated toward the null after additional adjustment for history of injury, medication use, and consultation (P quadratic = 0.17).Conclusions: This cross-sectional study showed that there were no significant linear or quadratic relationships of self-reported PA with CLBP and CKP. Future longitudinal study with objective measurements is needed.

著者

Yuri Yaguchi-Tanaka Takahiro Tabuchi

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200266, (Released:2020-07-11)

参考文献数

33

被引用文献数

8

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Background: Few longitudinal studies have examined the association between skipping breakfast and overweight/obesity in pre-elementary school children. Furthermore, this association may differ between boys and girls. The main objective of this study was to assess whether skipping breakfast in early childhood was associated with later incidence of overweight/obesity with stratification by gender, using data on children aged 2.5 to 13 years old in The Longitudinal Survey of Newborns in the 21st century.Methods: We examined the associations between skipping breakfast at 2.5 years old and overweight/obesity at 2.5 (n=34,649), 4.5 (n=35,472), 7 (n=31,266), 10 (n=31,211), and 13 (n=28,772) years old. To estimate adjusted odds ratios (ORs) with 95% confidence intervals (CIs) of overweight/obesity by each age (2.5, 4.5, 7, 10, 13 years), a multivariate logistic regression was used adjusting for time-invariant and time-varying covariates.Results: At the age of 2.5 years, 11.0% of boys and 12.2% of girls were skipping breakfast. In fully adjusted models, skipping breakfast at 2.5 years old was not significantly associated with overweight/obesity at 2.5 and 4.5 years old, but was significantly associated with overweight/obesity at 7 and 10 years old, in both sexes. Skipping breakfast at 2.5 years old was significantly associated with overweight/obesity at 13 years old in boys (OR=1.38, 95% CI=1.17-1.62), but not in girls (OR=1.21, 95% CI=0.98-1.49).Conclusions: Skipping breakfast in early childhood increased overweight/obesity in later childhood, but there may be gender differences in the association.

著者

Toshihiro TERUI Kazuki YOSHIDA Mie SASAKI Michio MURAKAMI Aya GOTO

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200108, (Released:2020-08-29)

参考文献数

36

被引用文献数

5

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Background: Discrepancies between parents’ reports of paternal parenting have been gaining attention, but epidemiological evidence is scarce in Asia. This study aimed to clarify agreement/discrepancy between paternal and maternal recognition of paternal parenting, and the association between actual paternal parenting time and background factors.Methods: Data from couples whose children attended 4-month-child health check-ups in Fukushima City were analyzed (N = 509). Based on paternal recognition of paternal parenting (PRPP) and maternal recognition of paternal support (MRPS), couples were classified into four groups. Each group’s paternal household work and parenting time were analyzed. Univariable and multivariable analysis were performed to investigate the association between agreement/discrepancy and background factors of children and parents.Results: Frequency of positive agreement (PRPP+ and MRPS+) was 83.9%, whereas negative agreement (PRPP- and MRPS-) was 2.6%. As for discrepancy, PRPP+ and MRPS- was 8.4% and PRPP- and MRPS+ was 5.1%. Fathers’ total median parenting time was 2 (weekdays) and 6 (weekends) hours, and showed significant differences among the four groups. Multivariable analysis revealed that compared to positive agreement, maternal mental health condition and pregnancy intention were significantly associated with the discrepancy PRPP+ and MRPS−, paternal mental health condition and marital satisfaction with the discrepancy PRPP−and MRPS+, and maternal mental health condition with negative agreement.Conclusions: We identified differences in parenting time and mental health characteristics among couples depending on agreement/discrepancy in recognition of paternal parenting. Assessing both parents’ profiles is necessary in clinical practice to promote paternal participation in childcare.

著者

Masaaki Yamada Michikazu Sekine Takashi Tatsuse Yukiko Asaka

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200214, (Released:2020-08-08)

参考文献数

32

被引用文献数

7

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Background: Little is known about pathological Internet use (PIU) and online risky behaviors among elementary school children. We aimed to investigate the prevalence and factors associated with PIU and online risky behaviors.Methods: A school-based cross-sectional study was conducted in Toyama, Japan in 2018. The study included 13,413 children in the 4th-6th grades (mean, 10.5 years old) from 110 elementary schools (61.1% of elementary schools in Toyama). We assessed PIU by Young’s Diagnostic Questionnaire (YDQ) and risky behaviors. Poisson regression analysis was conducted.Results: Totally, 13,092 children returned questionnaires (response rate 97.6%). The prevalence of PIU was 4.2% and that of each risky behavior was as follows: 21.6% in spending money online, 6.6% in uploading personal movies, 5.2% in interpersonal issues, and 2.4% in having met strangers. PIU was significantly associated with boys (prevalence ratio, PR=1.26; 95% confidence interval, CI: 1.04-1.52), skipping breakfast (PR=1.43; 95% CI: 1.14-1.79), Internet time (for 2~3h; PR=3.49, 95% CI: 2.63-4.65, for 3~4h; PR=4.45, 95% CI: 3.27-6.06, and for ≥4h; PR=8.25, 95% CI: 6.45-10.55), physical inactivity (PR=2.63; 95% CI: 2.00-3.47), late bedtime (PR=1.86; 95% CI: 1.45-2.39 for ≥11p.m.), no rules at home (PR=1.22; 95% CI: 1.01-1.46), no child-parent interaction (PR=1.37; 95% CI: 1.06-1.77), no close friends in real life (PR=1.69; 95% CI: 1.30-2.19).Conclusions: PIU and risky behaviors were not rare among the elementary school children. Besides unhealthy lifestyles, social and family environments were associated with PIU. Having child-parent interaction and helping children develop close friendships in real life are effective deterrents to PIU.

著者

Takaaki Ikeda Noriko Cable Masashige Saito Shihoko Koyama Taishi Tsuji Taiji Noguchi Katsunori Kondo Ken Osaka Jun Aida

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200138, (Released:2020-08-08)

参考文献数

39

被引用文献数

14

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Background: Existing evidence suggest that those who are socially isolated are at risk for taking up or continuing smoking. This study investigated country-based differences in social isolation and smoking status.Methods: We performed a repeated cross-sectional study using two waves of data from two ongoing aging studies: the English Longitudinal Study of Ageing and the Japan Gerontological Evaluation Study. Participants from both studies aged ≥65 years old were included. We applied a multilevel Poisson regression model to examine the association between social isolation and smoking status and adjusted for individual sociodemographic characteristics. We used the social isolation index which comprises the following domains: marital status; frequency of contact with friends, family, and children; and participation in social activities. Interaction terms between each country and social isolation were also entered into the mode.Results: After exclusion of never smokers, we analyzed 75,905 participants (7,092 for ELSA and 68,813 for JAGES, respectively). Taking ex-smokers as the reference, social isolation was significantly associated with current smoking; the prevalence ratios (PRs; 95% credible intervals [CrIs]) were 1.06 (1.05–1.08) for men and 1.08 (1.04–1.11) for women. Taking Japan as a reference, the interaction term between country and social isolation was significant for both sexes, with increased PRs (95% CrIs) of 1.32 (1.14–1.50) for men and 1.30 (1.11–1.49) for women in England.Conclusions: Older people who were less socially isolated were more likely to quit smoking in England than in Japan, possibly explained by the strict tobacco control policies in England.

著者

Ami Fukunaga Yosuke Inoue Takeshi Kochi Huanhuan Hu Masafumi Eguchi Keisuke Kuwahara Takako Miki Kayo Kurotani Akiko Nanri Isamu Kabe Tetsuya Mizoue

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.30, no.7, pp.288-294, 2020-07-05 (Released:2020-07-07)

参考文献数

45

被引用文献数

7

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Background: While a growing body of research suggests a protective role of healthy lifestyle against depression, evidence from prospective studies is scarce. We constructed a healthy lifestyle index (HLI) and examined its prospective association with depressive symptoms in a Japanese working population.Methods: Participants were 917 employees (19–68 years old) who were free from depressive symptoms at baseline in 2012–2013 and attended the 3-year follow-up survey. The HLI (range: 0–7 points) was constructed by assigning 1 point to each healthy lifestyle factor, namely, (1) normal body mass index (18.5–24.9 kg/m2), (2) non-smoking, (3) no or moderate alcohol intake (≤23 g ethanol/day), (4) adequate physical activity (≥7.5 metabolic equivalent-hours/week), (5) high vegetable intake (≥350 g/day), (6) high fruit intake (≥200 g/day), and (7) adequate sleep duration (6–8.9 hours/day), which was categorized into three groups (low: 0–2 points; middle: 3–4 points; and high: 5–7 points). Depressive symptoms were assessed using the Center for Epidemiologic Studies Depression Scale.Results: A total of 155 incident cases (17.0%) of depressive symptoms were identified at the follow-up survey. Compared with the low HLI group, multivariable-adjusted odds ratios of depressive symptoms were 0.74 (95% confidence interval, 0.48–1.15) and 0.55 (95% confidence interval, 0.31–0.99) for the middle and high HLI groups, respectively (P-trend = 0.041).Conclusion: The present study suggests the importance of adherence to multiple healthy lifestyle factors in prevention of depressive symptoms.

著者

Manami Ochi Aya Isumi Tsuguhiko Kato Satomi Doi Takeo Fujiwara

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20190177, (Released:2020-03-21)

参考文献数

39

被引用文献数

29

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Background: The Adachi Child Health Impact of Living Difficulty (A-CHILD) study has been conducted since 2015 to clarify the associations between socioeconomic factors and child health, as well as to accumulate data for political evaluation of the child-poverty agenda. This paper describes the purpose and research design of the A-CHILD study and the baseline profiles of participants, together with the future framework for implementing this cohort study.Methods: We have conducted two types of continuous survey: a complete-sample survey started in 2015 as a first wave study to target first-grade children in all public elementary schools in Adachi City, Tokyo, and a biennial fixed grade observation survey started in 2016 in selected elementary and junior high schools. Questionnaires were answered by caregivers of all targeted children and also by the children themselves for those in the fourth grade and higher. The data of A-CHILD also combined information obtained from school health checkups of all school-grade children, as well as the results from blood test and measurement of blood pressure of eight-grade children since 2016.Results: The valid responses in the first wave were 4,291 (80.1%). The number of households in “living difficulties”, such as low household income or material deprivation, stood at 1,047 (24.5%).Conclusions: The A-CHILD study will contribute to the clarification of the impact of poverty on children’s health disparities and paves the way to managing this issue in the community.

著者

Yosuke Inoue Shuhei Nomura Chihiro Nishiura Ai Hori Kenya Yamamoto Tohru Nakagawa Toru Honda Shuichiro Yamamoto Masafumi Eguchi Takeshi Kochi Toshiaki Miyamoto Hiroko Okazaki Teppei Imai Akiko Nishihara Takayuki Ogasawara Naoko Sasaki Akihiko Uehara Makoto Yamamoto Makiko Shimizu Maki Konishi Isamu Kabe Tetsuya Mizoue Seitaro Dohi

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20190332, (Released:2020-07-25)

参考文献数

31

被引用文献数

6

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Background: While much effort has focused on quantifying disease burden in occupational health, no study has simultaneously assessed disease burden in terms of mortality and morbidity. We aimed to propose a new comprehensive method of quantifying the disease burden in the workplace.Method: The data were obtained from the Japan Epidemiology Collaboration on Occupational Health (J-ECOH) Study, a large-scale prospective study of approximately 80,000 workers. We defined disease burden in the workplace as the number of working years lost among the working population during a 6-year period (April 2012 to March 2018). We calculated the disease burden according to consequences of health problems (i.e., mortality, sickness absence [SA], and ill-health retirement) and disease category. We also calculated the age-group- (20–39 and 40–59 years old) and sex-specific disease burden.Results: The largest contributors to disease burden in the workplace were mental and behavioural disorders (47.0 person-years lost per 10,000 person-years of working years, i.e., per myriad [proportion]), followed by neoplasms (10.8 per myriad) and diseases of the circulatory system (7.1 per myriad). While mental and behavioural disorders made a greater contribution to SA and ill-health retirement compared to mortality, the latter two disorders were the largest contributors to the disease burden in the workplace due to mortality. The number of working years lost was greater among younger vs. older female participants, whereas the opposite trend was observed in males.Conclusions: Our approach is in contrast to those in previous studies that focused exclusively on mortality or morbidity.

著者

Yugo Shobugawa Hiroshi Murayama Takeo Fujiwara Shigeru Inoue

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.30, no.7, pp.281-287, 2020-07-05 (Released:2020-07-07)

参考文献数

28

被引用文献数

15

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Background: Studies have shown that rural residents face disadvantages concerning medical access and socio-economic conditions. However, the social determinants of health among older people in rural areas are still unclear. The Neuron to Environmental Impact across Generations (NEIGE) study investigated the social determinants of health among older rural adults.Methods: A survey was conducted among the older residents of Tokamachi City, Japan. We randomly selected study participants (N = 1,346) from four stratified groups by age (65–74 and 75–84 years) and residential area (Tokamachi center [downtown] and Matsunoyama [mountain]). The survey collected data on socio-economic status, lifestyle, health, and neighborhood environment. Blood and urine sampling were also conducted, and physical activity was assessed. Magnetic resonance brain imaging (MRI) and Apo-E gene were also examined in the analysis.Results: In total, 527 people participated in the NEIGE study (participation rate: 39.2%). The average age of the participants was 73.5 (standard deviation, 5.6) years, and 47.3% were male. No differences in demographics were found between downtown and mountain residents, except for educational attainment, which was lower among mountain residents. Lifestyles were similar, except for the higher percentage of everyday drinkers (33.3–35.3%) in the mountain area. Concerning physical health, muscle mass, grip strength, and measured physical activity were significantly higher among mountain residents. However, gait speed and balance were better among downtown residents.Conclusion: The findings of the NEIGE study will help elucidate the social determinants of health in older rural adults in Japan, and emphasize the different outcomes between downtown and mountain areas.

著者

Takashi Yamauchi Machi Suka Hiroyuki Yanagisawa

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.30, no.6, pp.237-243, 2020-06-05 (Released:2020-06-05)

参考文献数

23

被引用文献数

6

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Background: The present study aimed to examine the association between the presence/absence of help-seeking behavior (ie, behavior aimed at obtaining assistance from others to improve a situation or problem) and psychological distress among private and public employees by age group using a nationally representative sample of the Japanese population.Methods: The present study analyzed data obtained from the 2016 Comprehensive Survey of Living Conditions, a nationwide cross-sectional survey. Of 568,426 participants, 78,284 private and public employees aged 20 to 59 years, who were receiving no mental health services at the time of the survey and reported at least one stressor in daily life, were eligible. The primary outcome measure was self-rated psychological distress as measured by the Kessler Psychological Distress Scale. Multiple logistic regression analyses were carried out separately by age group, adjusting for sociodemographic and job/life-related factors.Results: The proportion of participants not showing help-seeking behavior was significantly higher among those aged 40–59 years compared to those aged 20–39 (30.5% and 22.7%, respectively; P < 0.001). Participants without help-seeking behavior had significantly higher odds ratios (ORs) for psychological distress, regardless of age group (OR = 1.9 [95% confidence interval (CI), 1.6–2.0] and OR = 1.6 [95% CI, 1.4–1.7] for the age 20–39 years and 40–59 years groups, respectively), compared to those showing help-seeking behavior.Conclusions: Participants not showing help-seeking behavior were more likely to have severe psychological distress, and this trend appeared to be slightly stronger among those aged 20–39 years. These findings suggest that promoting help-seeking behavior is important for improving mental health among workers.

著者

Shingo Fukuma Tatsuyoshi Ikenoue Yukari Yamada Yoshiyuki Saito Joseph Green Takeo Nakayama Shunichi Fukuhara

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200181, (Released:2020-07-04)

参考文献数

39

被引用文献数

3

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BackgroundBreaches of ethics undermine the practice of medicine. In Japan, two major scandals involving clinical research and drug marketing occurred after the publication of clinical trials. To study the effects of those scandals, we evaluated changes in the use of first-generation angiotensin II receptor blockers (ARBs) after publication of relevant clinical trials and also after the subsequent scandals.MethodsWe conducted a quasi-experimental design of an interrupted time series analysis (ITSA) on nationwide monthly drug-market data covering 12 years (2005 to 2017) in Japan. The main outcome was the use of first-generation ARBs (valsartan, candesartan, and losartan). The two exposures were the publication of ARB-related clinical-trial results (October 2006) and subsequent ARB-related scandals involving research and marketing (February 2013). A generalized estimating equation model was fitted for ITSA with a log link, Poisson distribution, robust variance estimators, and seasonality adjustment.ResultsThe publication of clinical trials was associated with 12% increase in the use of first-generation ARBs in Japan, and the subsequent ARB-related scandals was associated with 19% decrease. The decrease in the use of first-generation ARBs after the scandals was greater than the increase in their use after the publication of clinical-trial results. The net effect of the two exposures was a 9% decrease in the use of first-generation ARBs.ConclusionsThe scandals were associated with decrease in the use of first-generation ARBs, and that decrease was greater than the increase associated with the publication of “successful” clinical trials, making the net effect not zero but negative.

著者

Kenji Matsui Keiichiro Yamamoto Yusuke Inoue

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200278, (Released:2020-07-04)

参考文献数

19

被引用文献数

2

著者

Kayo Ueda Makiko Yamagami Fumikazu Ikemori Kunihiro Hisatsune Hiroshi Nitta

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.26, no.5, pp.249-257, 2016-05-05 (Released:2016-05-05)

参考文献数

32

被引用文献数

15 40

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Background: Seasonal variation and regional heterogeneity have been observed in the estimated effect of fine particulate matter (PM2.5) mass on mortality. Differences in the chemical compositions of PM2.5 may cause this variation. We investigated the association of the daily concentration of PM2.5 components with mortality in Nagoya, Japan.Methods: We combined daily mortality counts for all residents aged 65 years and older with concentration data for PM2.5 mass and components in Nagoya from April 2003 to December 2007. A time-stratified case-crossover design was used to examine the association of daily mortality with PM2.5 mass and each component (chloride, nitrate, sulfate, sodium, potassium, calcium, magnesium, ammonium, elemental carbon [EC], and organic carbon [OC]).Results: We found a stronger association between mortality and PM2.5 mass in transitional seasons. In analysis for each PM2.5 component, sulfate, nitrate, chloride, ammonium, potassium, EC, and OC were significantly associated with mortality in a single-pollutant model. In a multi-pollutant model, an interquartile range increase in the concentration of sulfate was marginally associated with an increase in all-cause mortality of 2.1% (95% confidence interval, −0.1 to 4.4).Conclusions: These findings suggest that some specific PM components have a more hazardous effect than others and contribute to seasonal variation in the health effects of PM2.5.

著者

Shiho Amagasa Noritoshi Fukushima Hiroyuki Kikuchi Koichiro Oka Sebastien Chastin Catrine Tudor-Locke Neville Owen Shigeru Inoue

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200080, (Released:2020-06-13)

参考文献数

39

被引用文献数

19

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Background: Daily step count is the most simple measure of physical activity. However, little is known about how daily step count related to time spent in different intensities of physical activity (PA) and sedentary behavior (SB).Methods: These cross-sectional data were derived from 450 older Japanese adults (56.7% men, mean age 74.3 years) who were randomly selected from three communities and responded a survey. Daily step count and time spent in moderate-to-vigorous PA (MVPA), light-intensity PA (LPA), and SB were measured using a validated wearable technology (HJA-350IT). Associations of daily step count with time spent in measured behaviors were examined by linear regression models using isometric log-ratio transformations of time-use composition, adjusting for gender, age and residential area.Results: Participants averaged 5,412 (SD: 2,878) steps/d and accumulated MVPA, LPA, and SB corresponding to 4.0, 34.8, and 61.2% of daily waking time, respectively. Daily step count significantly increased with increase in time spent in MVPA relative to other behaviors (i.e. LPA and SB) and in the ratio of LPA to SB after allowing for MVPA. After stratification, daily step count was significantly related to the ratio of LPA to SB in those taking <5,000 steps/d, but not in those taking 5,000-7,499 and ≥7,500 steps/d.Conclusions: Higher daily step count can be an indicator of not only larger relative contribution of time spent in MVPA, but also higher ratio between LPA and SB, particularly among those who are the least physically active.

著者

Xiuting Mo Ruoyan Gai Tobe Yoshimitsu Takahashi Naoko Arata Tippawan Liabsuetrakul Takeo Nakayama Rintaro Mori

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20190338, (Released:2020-05-23)

参考文献数

55

被引用文献数

14

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Background: This study aims to find evidence of the cost-effectiveness of gestational diabetes mellitus (GDM) screening and assess the quality of current economic evaluations which have shown different conclusions with a variation in screening methods, data sources, outcome indicators, and implementation in diverse organizational contexts.Search Strategy: Embase, Medline, Web of Science, HTA, and NHSEED databases were searched till June 2019.Selection Criteria: Studies on economic evaluation reporting both cost and health outcomes of GDM screening programs in English language.Data Collection and Analysis: The quality of the studies was assessed using Drummond’s checklist. The general characteristics, main assumptions, and results of the economic evaluations were summarized.Main Results: Our search yielded ten eligible economic evaluations with different screening strategies comparison in different settings and perspectives. The selected papers scored 81% (68%–97%) on the items in Drummond’s checklist on average. In general, a screening program is cost-effective (C-E) or even dominant over no screening. The 1-step screening, with more cases detected, is more likely to be C-E than the 2-step screening. Universal screening is more likely to be C-E than screening targeting the high-risk population. Parameters affecting cost-effectiveness include: diagnosis criteria, epidemiological characteristics of the population, efficacy of screening and treatment, and costs.Conclusions: Most studies found GDM screening to be cost-effective, though uncertainties remain due to many factors. The quality assessment identified weaknesses in the economic evaluations in terms of integrating existing data, measuring costs and consequences, analyzing perspectives, and adjusting for uncertainties.

著者

Takashi OSHIO

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200071, (Released:2020-05-23)

参考文献数

32

被引用文献数

1

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Background: The “retired husband syndrome” refers to the negative impact of the husband’s retirement on the wife’s health. This study provided new insights by examining whether and to what extent the wife’s social participation, interactions with her husband, and job status prior to her husband’s retirement affected the evolution of her mental health after her husband’s retirement.Methods: We collected data from a 12-wave nationwide panel survey conducted from 2005 to 2016, starting with individuals aged 50–59 years. Focusing on 3,794 female respondents whose husbands retired during the survey period, we applied random-effects linear regression models to investigate the evolution of their mental health as measured by the Kessler 6 (K6) score (range: 0–24; M: 3.41 SD: 4.11) during the five years after their husbands’ retirement.Results: On average, the wife’s K6 score rose by 0.18 (95% confidence interval [CI]: 0.08–0.28), 0.18 (95% CI: 0.03–0.34), and 0.19 (95% CI: –0.02–0.43) in the first three years, respectively, after the husband’s retirement, before declining toward the baseline level. However, the wife’s active social participation, intense interactions with her husband, and absence of paid employment before her husband’s retirement prevented her mental health from deteriorating.Conclusion: The results suggest the limited relevance of the “retired husband syndrome” among middle-aged Japanese couples. The effects of a husband’s retirement on the wife’s mental health depended heavily on her prior behavior.

著者

Carlo La Vecchia

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.26, no.10, pp.513-514, 2016-10-05 (Released:2016-10-05)

参考文献数

8

著者

Izumi Mishiro Norie Sawada Motoki Iwasaki Kayo Ohashi Shoichiro Tsugane

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.26, no.10, pp.522-529, 2016-10-05 (Released:2016-10-05)

参考文献数

14

被引用文献数

1 1

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Background: Some recent molecular epidemiology studies of the effects of genetic and environmental factors on human health have required the enrollment of more than 100 000 participants and the involvement of regional study offices across the country. Although regional study office investigators play a critical role in these studies, including the acquisition of funds, this role is rarely discussed.Methods: We first differentiated the functions of the regional and central study offices. We then investigated the minimum number of items required and approximate cost of a molecular epidemiology study enrolling 7400 participants from a model region with a population of 100 000 for a 4-year baseline survey using a standard protocol developed based on the protocol of Japan Public Health Center-based Prospective Study for the Next Generation.Results: The functions of the regional study office were identified, and individual expenses were itemized. The total cost of the 4-year baseline survey was 153 million yen, excluding consumption tax. Accounting difficulties in conducting the survey were clarified.Conclusions: We investigated a standardized example of the tasks and total actual costs of a regional study office. Our approach is easy to utilize and will help improve the management of regional study offices in future molecular epidemiology studies.

著者

Takeo Fujiwara

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.30, no.4, pp.151-152, 2020-04-05 (Released:2020-04-05)

参考文献数

4

被引用文献数

1