Table 4. Multivariate logistic regression analysis^a for the associations of work-to-family conflict, family-to-work conflict, and work-family conflict with individual sleep disturbances.

		Having trouble falling asleepb	Wake up several times per nightc	Wake up too early and can’t fall asleep againd	Wake up tired after usual amount of sleepe
Work-to-family conflict
	Low	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High	-----------	0.63 (0.32–1.22)	3.52 (2.16–5.74)	2.04 (1.32–3.15)
Family-to-work conflict
	Low	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High	-----------	1.71 (0.95–3.09)	0.92 (0.62–1.38)	1.38 (0.94–2.03)
Work-family conflict
	Low WFC and low FWC	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High WFC and low FWC	-----------	0.44 (0.17–1.14)	3.01 (1.59–5.73)	2.57 (1.36–4.86)
	Low WFC and high FWC	-----------	1.34 (0.61–2.97)	0.68 (0.34–1.34)	1.59 (0.95–2.68)
	High WFC and high FWC	-----------	1.03 (0.44–2.43)	2.89 (1.56–5.34)	2.65 (1.50–4.67)

WFC: work-to-family; FWC: family-to-work. ^aAdjusted for age, residence, sex, marital status, monthly income, education, occupation, shift of work, working hours, body mass index, frequency and duration of napping, smoking habit, history of diabetes mellitus and history of hypertension. ^bThe number of cases having trouble falling asleep were 22 in low WFC versus 35 in high WFC; 14 in low FWC versus 43 in high FWC; and 4, 10, 18 and 25 in low WFC low FWC, high WFC low FWC, Low WFC high FWC and High WFC high FWC groups respectively. ^cThe respective numbers for waking up several times per night were 50 in low WFC versus 56 in high WFC; 37 in low FWC versus 69 in high FWC; and 19, 18, 31 and 38 in low WFC low FWC, high WFC low FWC, Low WFC high FWC and High WFC high FWC groups respectively. ^dThose who wake up to early were 65 in low WFC versus 100 in high WFC; 75 in low FWC versus 90 in high FWC; and 34, 41, 31 and 59 in low WFC low FWC, high WFC low FWC, Low WFC high FWC and High WFC high FWC groups respectively. ^eThe respective numbers for those who wake up tired were 129 in low WFC versus 141 in high WFC; 105 in low FWC versus 165 in high FWC; and 54, 51, 75 and 90 in low WFC low FWC, high WFC low FWC, Low WFC high FWC and High WFC high FWC groups respectively.