Work hours, weekend working, nonstandard work schedules and sleep quantity and quality: findings from the UK household longitudinal study

Table 3 Associations between temporal work patterns and sleep duration^a in a gender-stratified sample of workers

	Men									Women
	Sleep duration (ref: 7–8 h/night)									Sleep duration (ref: 7–8 h/night)
		Model 1				Model 2					Model 1				Model 2
		< 7 h/night		≥ 9 h/night		< 7 h/night		≥ 9 h/night			< 7 h/night		≥ 9 h/night		< 7 h/night		≥ 9 h/night
Temporal work patterns	%	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI	%	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Weekly work hours (ref: 35–40 h/wk)^b	36.8	1.00		1.00		1.00		1.00		29.4	1.00		1.00		1.00		1.00
< 35 h/wk	15.3	0.90	0.77, 1.06	1.68	1.11, 2.56	0.94	0.80, 1.10	1.71	1.13, 2.61	48.5	0.94	0.84, 1.06	1.20	0.87, 1.65	0.97	0.86, 1.09	1.19	0.86, 1.64
41–54 h/wk	36.7	1.12	1.00, 1.26	0.99	0.64, 1.54	1.12	1.00, 1.26	0.96	0.62, 1.49	18.3	1.25	1.09, 1.44	0.89	0.61, 1.31	1.20	1.04, 1.38	0.88	0.60, 1.30
≥ 55 h/wk	11.2	1.58	1.34, 1.86	1.01	0.57, 1.79	1.54	1.30, 1.81	0.93	0.52, 1.68	3.9	1.68	1.31, 2.17	1.01	0.48, 2.11	1.50	1.16, 1.94	0.93	0.44, 1.97
Weekend working (ref: no weekends)^c	34.6	1.00		1.00		1.00		1.00		49.5	1.00		1.00		1.00		1.00
Some weekends	41.7	1.07	0.96, 1.20	1.03	0.69, 1.52	1.07	0.96, 1.20	1.00	0.68, 1.46	30.8	1.34	1.20, 1.49	1.09	0.81, 1.47	1.31	1.18, 1.46	1.08	0.80, 1.45
Most/all weekends	23.7	1.26	1.10, 1.44	1.56	1.05, 2.32	1.22	1.06, 1.40	1.51	1.02, 2.25	19.8	1.48	1.30, 1.68	1.52	1.15, 2.02	1.38	1.21, 1.57	1.48	1.11, 1.97

^aMultinomial logistic regression models
^bWeekly work hours – model 1 analysed the pooled sample data (n = 48,990) and the analyses were clustered at the individual level; model 2 analysed the w4-only sample data (n = 25,605)
^cWeekend working analysed the w4-only sample data (n = 25,605)
Model 1 analysed the associations for each type of temporal work pattern (e.g. weekly work hours only; weekend working only; or schedules only), and adjusted for age, age-squared, marital status, youngest child in the household, informal caregiving, housing tenure, educational attainment, equivalised household income, NS-SEC, LLTI, smoker status, exercise frequency, and frequency of alcohol consumption
Model 2 = model 1 + work conditions: job satisfaction, satisfaction with income, satisfaction with leisure time, work autonomy, and job physicality

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