Domestic work stress and self-rated psychological health among women: a cross-sectional study in Japan

Table 3 Subgroup analyses of regression coefficient B ^a for domestic work factors to self-rated mental health by working hours

	< 30 h per week (N = 1,000)				≥ 30 h per week (N = 1,000)
	Mental Health score		Vitality score		Mental Health score		Vitality score
	B	P	B	P	B	P	B	P
Domestic job demand (each additional point higher)	− 0.42	0.03	− 0.31	0.10	− 0.35	0.04	− 0.32	0.09
Domestic job control (each additional point higher)	0.41	0.03	0.38	0.04	0.24	0.16	0.18	0.35
High support from a partner	0.001	0.99	0.54	0.41	− 0.24	0.67	0.16	0.80
High support from parents or parents-in-law	0.06	0.94	0.97	0.22	1.23	0.09	2.64	< 0.01
Having a young child	2.22	< 0.01	1.35	0.06	1.50	0.04	1.77	0.02
Giving care to a family member	0.31	0.84	− 0.82	0.57	− 0.92	0.48	− 0.47	0.75

^aAdjusted for demographic factors, occupational factors, and work–family conflicts using multiple linear regression models used in Table 2 (excluding working hours)

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