著者

Mineko BABA Genta MIYAMA Daisuke SUGIYAMA Masahito HITOSUGI

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.57, no.4, pp.530-536, 2019 (Released:2019-08-03)

参考文献数

12

被引用文献数

5

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Sudden illness while driving has been identified as a major cause of vehicle collisions, particularly among taxi drivers. However, no previous studies have examined the factors contributing to the occurrence of health-related vehicle collisions. The current study aimed to identify the risk factors causing health-related vehicle collisions among taxi drivers, and to inform preventative interventions. A cross-sectional survey involving a written anonymous questionnaire was conducted for company-employed taxi drivers in Chiba Prefecture, Japan. A total of 1,739 drivers returned questionnaires. Drivers were classified into those who had experienced collisions or near-miss incidents caused by health problems (Event group), and those who had not (Non-event group). According to a multivariable logistic regression analysis, being unable to take vacation time (odds ratio [OR] 4.59, 95% confidence interval [CI] 2.2–9.58), having chronic diseases (OR 1.52, 95% CI 1.02–2.27), taking insufficient vacation time (OR 1.81, 95% CI 1.19–2.79), and difficulty reporting poor health conditions (OR 2.29, 95% CI 1.36–3.87) were significant factors for the likelihood of an event. Support for drivers to maintain well-balanced control of illnesses and improvement of working environments could prevent health-related events while driving.

著者

Matteo RICCÒ Luigi VEZZOSI Federica BALZARINI Anna ODONE Carlo SIGNORELLI

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

pp.2018-0268, (Released:2019-09-21)

被引用文献数

11

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The aim of this study was to assess the relationship between environmental temperatures and occupational injuries (OIs) in construction workers (CWs) from a subalpine region of North-Eastern Italy. Data about OIs from 2000 to 2013, and daily weather for the specific site of the events were retrieved. Risk for daily OIs was calculate through a Poisson regression model. Estimated daily incidence for OIs was 5.7 (95% confidence interval (CI) 5.5–5.8), or 2.8 OIs/10,000 workers/day (95%CI 2.7–2.9), with higher rates for time periods characterized by high temperatures (daily maximum ≥35°C), both in first 2 days (3.57, 95%CI 3.05–4.11) and from the third day onwards (i.e. during Heat Waves: 3.43, 95%CI 3.08–3.77). Higher risk for OIs was reported in days characterized temperatures ≥95th percentile (OR 1.145, 95%CI 1.062–1.235), summer days (daily maximum ≥25°C, OR 1.093, 95%CI 1.042–1.146). On the contrary, no significant increased risk was found for OIs having a more severe prognosis (≥40 d or more; death). In conclusion, presented findings recommend policymakers to develop appropriate procedures and guidelines, in particular aimed to improve the compliance of younger CWs towards severe-hot daily temperatures.

著者

Jennifer RITONJA Kristan J. ARONSON Raymond W. MATTHEWS Diane B. BOIVIN Thomas KANTERMANN

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.57, no.2, pp.201-212, 2019 (Released:2019-04-01)

参考文献数

89

被引用文献数

3 52

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There is no standard definition of shift work universally, and no validated report of complete biological adjustment to shift work in workers. Similarly, the evidence for shift work tolerance is limited due to a small number of studies and a narrow range of outcome measures. This paper discusses evidence to date regarding individual differences in shift work tolerance and highlights areas for future research and recommendations for workplace practice. The few factors that are consistently associated with perceived or actual shift work tolerance are young age, low scores of morningness or being a late chronotype, low scores of languidity and neuroticism, high scores on extraversion, internal locus of control and flexibility and male sex. An important first step is to differentiate between factors that are potentially modifiable, such as those that are determined by lifestyle choices, and those factors specific to the working time arrangement. Identifying determinants of shift work tolerance and the ability to adjust to shift work, whether they are innate and/or acquired mechanisms, is important so workers who are less likely to tolerate shift work well can be self-identified and supported with appropriate harm/risk minimization strategies. This paper also identifies important areas for future research with the goal of increasing the evidence base on which we can develop evidence-based harm mitigation strategies for shift workers.

著者

Jessica STANHOPE Philip WEINSTEIN

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

pp.2019-0094, (Released:2019-10-05)

被引用文献数

5

---

Musculoskeletal symptoms (MSSs) are common among professional musicians; however, most of the research has focused on orchestral/ classical musicians. In some countries orchestral and classical musicians are in the minority; hence targeting research towards these specific sub-groups of musicians is unlikely to address the overall burden of musicians’ MSSs, unless the research is generalizable to other types of musicians. This multidisciplinary narrative review seeks to answer the question: “why do we need to examine the MSSs of non-classical groups of performing musicians in order to reduce the burden of musicians’ MSSs?”. There are differences in the education, posture, tasks (e.g. military training for military band musicians, dancing for those in musical theatre), venues and management of MSSs for different types of musicians. Future research should compare classical and non-classical musicians in order to determine which specific sub-groups (e.g. military band musicians) have the greatest MSS burden, such that further research into the risk factors of and interventions for MSSs can be targeted towards the sub-groups of musicians with the greatest MSS burden. In doing so, we maximise the likelihood of being able to introduce interventions, policies and practice that reduce the burden of musicians’ MSSs.

著者

Taleb ASKARIPOOR Majid MOTAMEDZADE Rostam GOLMOHAMMADI Maryam FARHADIAN Mohammad BABAMIRI Mehdi SAMAVATI

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.57, no.4, pp.511-524, 2019 (Released:2019-08-03)

参考文献数

60

被引用文献数

16

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Disrupting sleepiness and fatigue during the post-lunch dip by environmental factors may result in a decrease in human errors and accidents, and enhance job performance. Recent studies have shown that both red white light as well as blue white light can have a positive effect on human alertness and mental functioning. In the present study, the light intervention was evaluated for its effectiveness on alleviating the post-lunch dip. Twenty healthy volunteers experienced 117 min of four light conditions preceded by a 13-min initial dim light while performing a continuous performance test (CPT) and undergoing recording of the electroencephalogram (EEG): blue-enriched white light (12,000 K, 500 lx, BWL), red saturated white light (2,700 K, 500 lx, RWL), normal white light (4,000 K, 500 lx, NWL), and dim light (<5 lx, DL) conditions. Other outcome measures were subjective sleepiness, mood, and performance tests (working memory, divided attention, and inhibitory capacity). We found that exposure to both BWL and RWL conditions decreased the lower alpha-band power compared to the NWL and DL conditions. No significant differences were observed in subjective sleepiness and mental performance during sustained attention, working memory, and inhibitory capacity tasks between NWL, RWL, and BWL conditions. The present findings suggest that both RWL and BWL, compared to NWL condition, can improve the physiological correlates of alertness in EEG measurements. However, these changes did not translate to improvements in task performance and subjective alertness.

著者

Rumi SEKO Miyuki KAWADO Sayana SAITO Takuma SHIBUYA Miho MIYAMOTO Hiroya YAMADA Hiroshige TANIWAKI Shuji HASHIMOTO

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

pp.2018-0112, (Released:2018-12-08)

被引用文献数

8

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Taking action in response to health examination results is important to stay healthy. We aimed to investigate the associations between occupation, employment type and company size, and having a health examination and taking action in response to the results among Japanese employees. We focused on three particular actions by employees in response to health examination results: paying attention to one's health, receiving health guidance, and visiting a medical institution. We used anonymous data from the 2010 Comprehensive Survey of Living Conditions of Japan, a self-administered nationwide questionnaire survey. The data of 23,963 employees (12,938 male and 11,025 female) aged 20–64 years were analyzed using logistic regression models adjusted by covariates. There were significant changes in odds ratios for receiving a health examination by occupation, employment type and company size. We found significant odds ratios for receiving health guidance by occupation and company size, but there was almost no significant association with paying attention to one’s health and visiting a medical institution. These results confirmed that receiving a health examination was associated with occupational factors, and suggested that receiving health guidance after health examination results was associated with occupation and company size.

著者

Yukihiro SATO Toru TSUBOYA Jun AIDA Yasuaki SAIJO Eiji YOSHIOKA Ken OSAKA

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

pp.2018-0226, (Released:2019-05-17)

被引用文献数

1

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Oral diseases produce enormous productivity loss. However, epidemiological evidence of work stress and tooth loss is scarce. The aim of this study was to examine the association of work stress, according to effort–reward imbalance (ERI), with tooth loss. We conducted a cross-sectional study using data obtained between 2010 and 2011 in Japan. This study included 1,195 employees aged 25–50 years old (response rate=32%). The dependent variable was self-reported tooth loss (having or not). The independent variable was a dichotomized ERI ratio (>1.4 and ≤1.4). Age, sex, sociodemographic variables, work-related factors, and health-related variables were adjusted. Psychological distress was used as a potential mediator. We also examined an additive interaction between support from supervisors and ERI. The median age was 37, and 48% were women. After adjusting for the covariates, ERI was still associated with tooth loss (prevalence ratio=1.20 [95% confidence interval=1.01, 1.42] from Poisson regression models with a robust error variance). Psychological distress partially explained the association, and support from supervisors significantly attenuated the association. In conclusion, high ERI ratio was still associated with an increased risk of tooth loss among working adults.

著者

Sasitorn TAPTAGAPORN Susumu SAITO

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.31, no.1, pp.13-28, 1993 (Released:2008-04-17)

参考文献数

28

被引用文献数

25 29

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To recommend a comfortable visual display terminal (VDT) workstation design in an aspect of visual ergonomics, physiological resting states of the eye in 3 visual systems, pupil, vergence, and accommodation, were objectively investigated in 3 experiments. Exper-iment 1 ascertained a positive display polarity (dark characters on a bright background) and an illumination level of 500 lx to be the most appropriate working conditions, by using pupil analysis and subjective visual comfort in 10 subjects. Dark vergence, in experiment 2, was evaluated to be at a distance of about 50 cm from the eye, as an average in 14 subjects. Dark vergence was found to shift farther with an upward gaze while a nearer shift occurred with a downward gaze. In experiment 3, the average dark focus for 11 subjects was found to be 1.4 diopters (D) or a distance of about 74 cm from the eye. The positive correlation between refractive status of the eye and dark focus was statistically significant (r= 0.602). The ergonomic recommendations for a VDT workstation obtained in this study are a positive display polarity with an appropriate lighting condition, a downward gaze, and a viewing distance between 50 and 70 cm. These recommendations are considered to reduce visual fatigue due to prolonged VDT work and to facilitate visual comfort at work.

著者

Keiji MURAMATSU Yoshihisa FUJINO Tatsuhiko KUBO Makoto OTANI Shinya MATSUDA

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.57, no.1, pp.79-83, 2019 (Released:2019-02-05)

参考文献数

17

被引用文献数

7

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This study used health insurance claims data to examine the relationship between the length of sick leave and treatment administered to employees who received middle- to long-term accident and sickness benefits for ≥91 d due to mood disorders, anxiety, and dissociative, stress-related, somatoform and other nonpsychotic mental disorders. Employees who received psychotherapy had significantly shorter leaves of absence over one year compared to those that did not. Treatment with psychotropic drugs was significantly higher among those on leave for ≤365 d than those on leave for ≥366 d. Age, sex and hospital treatment were not significantly associated with length of sick leave. These results suggest that professional psychological treatment is associated with length of sick leave.

著者

Beverly M. HITTLE Gordon L. GILLESPIE

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.56, no.6, pp.512-523, 2018 (Released:2018-11-21)

参考文献数

53

被引用文献数

41

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Shift workers are at risk for developing serious health issues due to short sleep. One cause of short sleep is circadian misalignment: sleep time is not synchronized with the body’s natural circadian rhythms. Although circadian rhythms are strongly driven by the light/dark cycle, humans have individualized sleep time preferences (chronotypes) based on genetics, development, and external influences. Evening chronotype individuals fall asleep later than average and have a higher risk for developing various noncommunicable diseases. What is unclear is the association between chronotype, shift work, and risks for acquiring chronic conditions. This review is focused on shift worker chronotype and associations with obesity. Because of the paucity of research, other health issues connected with circadian misalignment were included, allowing for a total of 21 research studies. Evidence from this review supports chronotype and certain health issues are associated with shift work, even after adjusting for short sleep duration. In addition, there is evidence to support future research on how shift worker chronotype matched with shift timing impacts worker health. Through better understanding of this interface, occupational health providers can provide more comprehensive worker education on the risks associated with shift work and sleep disturbances.

著者

KIM Hyunwook PARK Dong-Uk

出版者

独立行政法人 労働者健康安全機構 労働安全衛生総合研究所

雑誌

Industrial health (ISSN:00198366)

巻号頁・発行日

vol.44, no.1, pp.75-82, 2006

被引用文献数

4

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Micro-scale enterprises (MSEs) with less than 5 employees are subject to be covered by the scheme of the regular workplace environmental inspection and medical health examination from 2002 in Korea. Due to limited resources as well as vast number of enterprises to be covered, there is an urgent need to focus these efforts to only those high-risk MSEs. To identify them, a qualitative risk assessment methodology was developed combining the hazardous nature of chemicals and exposure potentials as modeled by the HSE and the risk categorization technique by the AIHA. Risk Index (RI) was determined by combining characteristics specific to chemicals and scale of use of the chemicals. The method was applied to 514 MSEs that were selected from a random sample of 4000 MSEs. A total of 170 out of 514 MSEs studied were included in the final analysis. Current status and characteristics of MSEs were identified and RI was assigned to chemicals in each industry. Based on the distribution of RIs, the high-risk MSEs were selected. These include: wood and products of wood, chemicals and chemical products, basic metals, other machinery and equipment, motor vehicles, trailer and semi-trailer manufacturing, and furniture manufacturing. Since these MSEs are high-risk ones, more attentions should be focused on them. This method can be applied to other workplaces with no previous history of quantitative workplace inspections.<br>

著者

Takeyasu KAKAMU Tomoo HIDAKA Tomohiro KUMAGAI Takanobu JINNOUCHI Sei SATO Yusuke MASUISHI Shota ENDO Shinichi NAKANO Kikuo KOYAMA Tetsuhito FUKUSHIMA

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

pp.2018-0094, (Released:2019-02-22)

被引用文献数

9

---

The aims of the present study were to investigate what kind of anxiety radiation decontamination workers have, and to analyze what factors are associated to presence or absence of their anxieties. A self-administered questionnaire was conducted, which included 10 anxiety items. A logistic regression model was then used to determine what factors were related to increased anxiety. Of 531 workers who completed the questionnaire, 477 (91.6%) complained of at least one of the 8 anxiety items. The most common anxiety item was job security (41.8%), and the least common item was working hours (6.0%). The logistic regression analysis revealed that the most common causes of related to presence of anxiety was heat illness and the most common causes of related to absence of anxiety was having someone available for consultation. The current study revealed the kinds of anxiety, and the factors associated with presence or absence of each anxiety among radiation decontamination workers. These results provide important implications for the improvement of educational content and occupational health management for radiation decontamination workers in the future.

著者

Tamie NAKAJIMA Hailan WANG Yuki ITO Hisao NAITO Dong WANG Na ZHAO Hongling LI Xinxiang QIU Lihua XIA Jiabin CHEN Qifeng WU Laiyu LI Hanlin HUANG Michihiro KAMIJIMA

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.56, no.4, pp.300-307, 2018 (Released:2018-07-27)

参考文献数

23

被引用文献数

7

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Occupational trichloroethylene (TCE) exposure can induce life-threatening generalized dermatitis accompanied by hepatitis: TCE hypersensitivity syndrome (HS). Since the patients’ exposure levels have not been fully clarified, this study estimated end-of-shift urinary concentrations of trichloroacetic acid (TCA) and their lower limit below which the disease occurrence was rare. TCA concentration was measured in 78 TCE HS patients whose urine was collected at admission between 2nd and 14th d after their last shift. Then a linear regression model was used to calculate the mean TCA concentration with 95% confidence interval (95% CI) and 95% prediction interval (95% PI) in the end-of-shift urine. The estimated mean concentration was 83 (95% CI, 49–140) mg/l with 95% PI 9.6–720 mg/l. TCA concentrations were also measured in the end-of-shift urine of 38 healthy workers involved in the same job as were the patients. The geometric mean and its 95% CI were 127 mg/l and 16–984 mg/l, respectively. The exposure levels in HS patients might have thus overlapped with those in workers without HS. Accordingly, it was suggested that HS occurred in the environment where the workers were exposed to the TCE concentration corresponding to the urinary TCA concentration as low as 10 mg/l.

著者

Hiroshi UDO Masahiko FUJIMURA Fumitaka YOSHINAGA

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.37, no.4, pp.369-381, 1999 (Released:2007-03-29)

参考文献数

41

被引用文献数

5 6

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The purpose of this study was to examine the possible effects of a tilting seat on the back, lower back and legs. Ten healthy male subjects aged 22-28 performed word-processing operations while sitting on a chair for one hour under two different seating conditions: the rocking condition and the fixed condition. While the subjects were performing the task, measurements of lower leg swelling were taken using bioelectrical impedance plethysmography, and pain scores were recorded every five min for the neck, shoulders, back, lower back, hips and legs. Electromyograms (EMGs) of the back and lower back (at Th5-6, Th8-9, L1-2 and L3-4) were recorded every sec. In addition, the subjects were videotaped while using the rocking seat, in order to analyze the angle and frequency of seat tilting. At the end of the experiment, the subjects were asked to evaluate the two conditions with respect to localized fatigue and operational efficiency. There was no significant difference in lower leg swelling between the two conditions. EMGs were significantly different at Th5-6, Th8-9 and L1-2 between the two conditions. The rocking condition generated greater EMGs at Th5-6 and L1-2, whereas the fixed condition produced greater EMGs at Th8-9. The pain scores for the neck, shoulders, back and lower back were higher under the fixed condition, while those for the buttocks were higher under the rocking condition. The average tilting frequency was as low as 25.2 times per hour, with 15.6 times per hour for tilting angles ranging from 1 to 2 degrees, and 9.6 times per hour for tilting angles exceeding 2 degrees. As for the subjective evaluations of localized fatigue, seven of the ten subjects preferred the rocking condition, while two preferred the fixed condition and one subject had no preference. Thus, there was a significant difference in the subjective evaluations of the two chairs. These findings suggest that the rocking condition, in contrast to the fixed seating condition, reduced back and lower back pain as a result of its tilting capability. The results of EMGs suggest that the rocking condition reduced back and lower back pain by increasing the overall muscle activity of the back and lower back. The leg impedance measurements showed no effect of the rocking condition on the leg swelling, as compared with the fixed condition.

著者

Sanae ORIYAMA Yukiko MIYAKOSHI Toshio KOBAYASHI

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.52, no.1, pp.25-35, 2014 (Released:2014-02-14)

参考文献数

59

被引用文献数

7 35

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The purpose of this study was to examine the effects of two 15-min naps on nurses who work at night in a three-shift system. Of the 15 nurses who were included as study subjects on a night shift, eight took two short naps (the Nap condition), and seven worked without taking a nap (the No-nap condition) during the night shift. We measured sublingual temperature and the bispectral index (BIS), obtained heart rate and heart rate variability measures from an electrocardiogram (ECG), and evaluated sleepiness and fatigue levels every hour using the Visual Analog Scale (VAS). Both subjective sleepiness and fatigue increased between 4:00 and 5:00, with no significant differences observed between the two groups. However, the low- to high-frequency ratio (LF/HF) in the Nap condition group was found to be significantly lower than in the No-nap condition group. Furthermore, a sudden, brief increase in HF values was observed in the No-nap condition group in the morning. The results of this study suggest that taking two short naps may effectively reduce tension and prevent a brief increase in HF values by suppressing sympathetic nervous activity in the morning.

著者

Ismail ABDUL RAHMAN Norlizaa MOHAMAD Jafri MOHD ROHANI Raemy MD ZEIN

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

pp.2018-0043, (Released:2018-09-13)

被引用文献数

8

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Prolonged standing can cause discomfort on the body of the workers and can lead to injury and occupational disease. One of the ergonomic intervention is through improving the work-rest scheduling. The purpose of this study are to identify the fatigue level from the perception of the worker and to investigate the impact of the work-rest scheduling to the standing workers for 12 hours working time with a different gender. This study involved two methods which are self-assessment of the worker and direct measurement by using electromyography (EMG). For self-assessment, 80 workers have been interviewed using questionnaire in order to identify the fatigue level. For direct measurement, EMG was attached to the 15 selected workers at their respective leg and lower back to analyse the muscle efforts. In terms of perception, the results show the discomfort and fatigue level at the lower body region in the following order as foot ankle, lower back and leg. There is a significant difference between gender on discomfort pain for foot ankle and leg. The results show short frequent break by 10 minutes can reduce the fatigue at the leg and infrequent long break is preferable in order to reduce the fatigue at the lower back. In conclusion, it was found that prolonged standing affect the muscle fatigue and discomfort especially lower extremities such as foot ankle, lower back and leg. Besides that, different type of work rest scheduling and gender have significant result towards the muscle fatigue development.

著者

Kessarawan NILVARANGKUL Teerasak PHAJAN Wongsa LAOHASIRIWONG John F SMITH Dariwan SETTHEETHAM

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.56, no.4, pp.320-326, 2018 (Released:2018-07-27)

参考文献数

27

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This cross sectional study developed and validated a LBP risk-factor screening scale for use with sugarcane farmers. The scale was developed from a synthesis of LBP risk factors, pretested with 30 sugarcane farmers and administered to five hundred and forty sugarcane farmers to test its psychometric properties. Results indicated construct validity for three factors; physical factors (19 items) with factor loadings of 0.406 to 0.881 and communalities between 0.471 and 0.991; psychological factors (7 items) with factor loadings of 0.635 to 0.821 and communalities between 0.444 and 0.714, and third, working environment factors (2 items), with factor loadings between 0.345 and 0.347 and communalities between 0.946 and 0.953. The content validity index was 0.90 with reliability index of 0.87. Sensitivity, specificity, positive predictive value, negative predictive value and accuracy were 82.02%, 30.49%, 62.65% and 54.40% respectively. The area under the receiver operating characteristic was 0.56. The scale’s high specificity and sensitivity and comprehensive three risk-factor dimensions should make it a very useful screening tool in primary health care for early detection of LBP and for LBP risk-reduction and prevention advice. Future studies could focus on confirming content and predictive validity in other settings to assess generality of its usage.

著者

Hanne AUSTAD Øystein WIGGEN Hilde FÆREVIK Trine M. SEEBERG

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

pp.2017-0162, (Released:2018-01-19)

被引用文献数

11

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This study investigated the usefulness of continuous sensor data for improving occupational cold stress assessment. Eleven volunteer male subjects completed a 90-120-minute protocol in cold environments, consisting of rest, moderate and hard work. Biomedical data were measured using a smart jacket with integrated temperature, humidity and activity sensors, in addition to a custom-made sensor belt worn around the chest. Other relevant sensor data were measured using commercially available sensors. The study aimed to improve decision support for workers in cold climates, by taking advantage of the information provided by data from the rapidly growing market of wearable sensors. Important findings were that the subjective thermal sensation did not correspond to the measured absolute skin temperature and that large differences were observed in both metabolic energy production and skin temperatures under identical exposure conditions. Temperature, humidity, activity and heart rate were found to be relevant parameters for cold stress assessment, and the locations of the sensors in the prototype jacket were adequate. The study reveals the need for cold stress assessment and indicates that a generalised approached is not sufficient to assess the stress on an individual level.

著者

Cecilie Schou ANDREASSEN Ståle PALLESEN Bente E. MOEN Bjørn BJORVATN Siri WAAGE Wilmar B. SCHAUFELI

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

pp.2017-0223, (Released:2018-05-15)

被引用文献数

13

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The present study comprised 1,781 nurses who participated in an investigation about working conditions, sleep, and health. They answered a questionnaire about age, sex, marital status, children living at home, work hours per week, number of night shifts last year, and total sleep duration and that also included a validated instrument assessing workaholism. In addition, they were asked to report on eight items concerning negative work-related incidents (dozed off at work, dozed while driving, harmed or nearly harmed self, harmed or nearly harmed patients/others, and harmed or nearly harmed equipment). Logistic regression analyses identified several predictors of these specific incidents: Low age (dozed at work, harmed and nearly harmed self, harmed and nearly harmed equipment), male sex (harmed and nearly harmed self, nearly harmed equipment), not living with children (harmed patients/others), low percentage of full-time equivalent (nearly harmed self and harmed patients/others), number of night shifts last year (dozed off at work and while driving, nearly harmed patients/others) and sleep duration (inversely related to dozed off at work and while driving, nearly harmed self). However, the most consistent predictor of negative work-related incidents was workaholism which was positively and significantly associated with all the eight incidents.

著者

Takashi YAMAUCHI Toru YOSHIKAWA Takeshi SASAKI Shun MATSUMOTO Masaya TAKAHASHI Machi SUKA Hiroyuki YANAGISAWA

出版者

National Institute of Occupational Safety and Health

雑誌

Industrial Health (ISSN:00198366)

巻号頁・発行日

vol.56, no.1, pp.85-91, 2018-01-31 (Released:2018-02-07)

参考文献数

11

被引用文献数

1 15

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In Japan, overwork-related disorders occur among local public employees as well as those in private businesses. However, to date, there are no studies reporting the state of compensation for cerebrovascular/cardiovascular diseases (CCVD) and mental disorders due to overwork or work-related stress among local public employees in Japan over multiple years. This report examined the recent trend of overwork-related CCVD and mental disorders, including the incidence rates of these disorders, among local public employees in Japan from the perspective of compensation for public accidents, using data from the Japanese Government and relevant organizations. Since 2000, compared to CCVD, there has been an overall increase in the number of claims and cases of compensation for mental disorders. Over half of the individuals receiving compensation for mental disorders were either in their 30s or younger. About 47% of cases of mental disorders were compensated due to work-related factors other than long working hours. The incidence rate by job type was highest among "police officials" and "fire department officials" for compensated CCVD and mental disorders cases, respectively. Changes in the trend of overwork-related disorders among local public employees in Japan under a legal foundation should be closely monitored.