Purpose More employees are experiencing a cancer diagnosis during their working-age years, yet there have been no largescale Japanese studies investigating sick leave due to cancer. We clarified differences in the cumulative partial and full return to work (RTW) rates between different cancer types among Japanese cancer survivors. Methods Data on Japanese employees who experienced an episode of sick leave due to clinically certified cancer diagnosed between 1 January 2000 and 31 December 2011 were obtained from an occupational health register. Subject outcomes within the 365-day period following their initial day of sick leave were utilized for this study. We investigated the cumulative partial/full and full RTW rates by using survival analysis with competing risks and predictors of time to RTW by a Fine-Gray proportional hazard regression model. Results One thousand two hundred seventy-eight subjects (1033 males and 245 females) experienced their first episode of sick leave due to cancer during the 12-year follow-up period. Of the subjects, 47.1 % returned to work full time within 6 months of their initial day of sick leave absence, and 62.3 % by 12 months. The cumulative RTW rate varied significantly by cancer type. There were considerable differences in the range of cumulative full RTW rates between the two categories ("lower full RTW rate" groups ("lung," "hepatic, pancreatic," "esophageal," and "blood" cancer groups) vs. "higher full RTW rate" groups ("gastric," "intestinal," "breast," "female genital," "male genital," "urinary"): 6.3 to 14.3 % vs. 11.4 to 28.3 % at 60 days, 10.6 to 22.4 % vs. 27.0 to 50.0 % at 120 days, 21.3 to 34.7 % vs. 38.5 to 65.4 % at 180 days, 34.3 to 42.9 % vs. 66.0 to 79.5 % at 365 days). Additionally, older age may be associated with a longer time to full RTW. Conclusions More than half of the subjects returned to work full-time within the 365-day period following their initial day of sick leave, with cumulative RTW rates varying by cancer type. Older employees may require a longer time to full RTW. Implications of Cancer Survivors It is very important for companies (especially small-and medium-sized companies) to establish and improve their RTW support system for cancer survivors, with knowledge that the median time to RTW is expected to be at least a few months.
ObjectivesThe objective of this study was to investigate the cumulative return to work (RTW) rate and to clarify the predictors of the time to full-time RTW (full RTW) and resignation among Japanese stroke survivors, within the 365-day period following their initial day of sickness absence due to stroke.SettingThis study was based on tertiary prevention of occupational health in large-scaled Japanese companies of various industries.ParticipantsThe participants in this study were 382 Japanese workers who experienced an episode of sickness leave due to clinically certified stroke diagnosed between 1 January 2000 and 31 December 2011. Data were obtained from an occupational health register. Participants were followed up for 365 days after the start day of the first sickness absence. The cumulative RTW rates by Kaplan-Meier estimates and predictors for time to full RTW and resignation by Cox regression were calculated.ResultsA total of 382 employees had their first sickness absence due to stroke during the 12-year follow-up period. The cumulative full RTW rates at 60, 120, 180 and 365 days were 15.1%, 33.6%, 43.5% and 62.4%, respectively. Employees who took sick leave due to cerebral haemorrhage had a longer time to full RTW (HR, 0.50; 95% CI 0.36 to 0.69) than those with cerebral infarction. Older employees (over 50 years of age) demonstrated a shorter time to resignation than younger employees (HR, 3.30; 95% CI 1.17 to 9.33). Manual workers had a longer time to resignation than non-manual workers (HR, 0.24; 95% CI 0.07 to 0.78).ConclusionsCumulative RTW rates depended on the subtype of stroke, and older age was a predictor of resignation.
BackgroundLong-term sick-leave is a major public health problem, but data on its incidence in Japan are scarce. We aimed to present reference data for long-term sick-leave among private sector employees in Japan.MethodsThe study population comprised employees of 12 companies that participated in the Japan Epidemiology Collaboration on Occupational Health Study. Details on medically certified sick-leave lasting ≥30 days were collected from each company. Age- and sex-specific incidence rate of sick-leave was calculated for the period of April 2012 to March 2014.ResultsA total of 1422 spells in men and 289 in women occurred during 162,989 and 30,645 person-years of observation, respectively. The three leading causes of sick-leave (percentage of total spells) were mental disorders (52%), neoplasms (12%), and injury (8%) for men; and mental disorders (35%), neoplasms (20%), and pregnancy-related disease (14%) for women. Incidence rate of sick-leave due to mental disorders was relatively high among men in their 20s–40s but tended to decrease with age among women. Incidence rate of sick-leave due to neoplasms started to increase after age 50 in men and after age 40 in women, making neoplasms the leading cause of sick-leave after age 50 for women and after age 60 for men and the second leading cause after age 40 for women and after age 50 for men. Pregnancy-related disease was the second leading cause of sick-leave among women aged 20–39 years.ConclusionsThese results suggest that mental disorder, neoplasms, and pregnancy-related disease are the major causes of long-term sick-leave among private sector employees in Japan.
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