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Table 1 Demographic variables

From: Long working hours and sickness absence—a fixed effects design

  Prospective cohort Fixed effects (all) Fixed effects (worked > 41 h) Fixed effects (worked >  48 h)
N 5910 18,221 5889 1631
Long working hours (>  48 h) 1% 9% 28% 100%
Semi-long hours (41–48 h) 6% 31% 96% 86%
Short sickness absence 73% 64% 64% 52%
Long sickness absence 23% 14% 14% 13%
Extra-long sickness absence 12% 6% 6% 5%
Age 45 (SD 12) 42 (SD 12) 43 (SD 12) 44 (SD 11)
Salary 506,685 (SD 160094) 649,470 (SD 369401) 746,052 (SD 438982) 887,558 (SD 479854)
Female 67% 71% 58% 43%
Temporary contract 16% 32% 38% 45%
Multiple jobholders 3% 5% 5% 6%
Norwegian 92% 92% 92% 91%
Other Nordic 3% 4% 4% 4%
Other western 2% 2% 2% 3%
Non Western 2% 2% 2% 2%
Physician 11% 16% 37% 67%
Nurse 30% 32% 27% 12%
Other patient-related 20% 22% 14% 10%
Administration/management 23% 17% 10% 6%
Kitchen/cleaning/orderly 6% 4% 5% 0%
Other operations 6% 4% 4% 2%
Other 6% 5% 3% 2%
  1. Demographics for fixed effects shows percentage of employees with at least one instance of the given variable. N refers to all employees eligible to be included; for the fixed effects analyses, only those employees with variation in their dependent variable were included in the final analyses