Long working hours and sickness absence—a fixed effects design

BMC Public Health

Table 3 Working hours and sickness absence—Fixed effects analysis

	Short sickness absence (1–8 days)		Long sickness absence (9–183 days)		Extra-long sickness absence (> 183 days)
	OR	95% CI	OR	95% CI	OR	95% CI
Long Working hours (> 48 h per week)	0.77	(0.66–0.90) **	0.88	(0.62–1.26) ns	0.81	(0.45–1.45) ns
Semi-long working hours (40–48 h per week)	0.98	(0.92–1.05) ns	0.93	(0.79–1.10) ns	0.92	(0.69–1.22) ns
Salary	1.00	(1.00–1.00) ns	1.00	(1.00–1.00) ns	1.00	(1.00–1.00) ns
Temporary contract	0.67	(0.58–0.78) ***	0.46	(0.29–0.71) **	0.61	(0.31–1.19) ns
Multiple job holder	0.77	(0.55–1.08) ns	1.54	(0.58–4.07) ns	2.09	(0.52–8.47) ns
On-call shifts	0.94	(0.80–1.11) ns	0.85	(0.56–1.31) ns	1.02	(0.54–1.93) ns
January to March	1.11	(1.03–1.19) **	01.38	(1.14–1.67) **	1.55	(1.12–2.14) **
April to June	0.74	(0.69–0.80) ***	0.97	(0.79–1.20) ns	1.19	(0.84–1.68) ns
July to September	0.57	(0.52–0.61) ***	0.92	(0.76–1.13) ns	0.87	(0.61–1.24) ns

Logistic regression. Fixed effects analyses; employee-months nested within employees
N short absence: 3662 (40,513 observations); employees followed 2–32 months (11 on average) N long absence: 838 (9434); employees followed 2–27 months (11 on average) N extra-long absence: 320 (3629); employees followed 2–26 months (11 on average)
** p > 0.01;*** p > 0.001

ISSN: 1471-2458