Mothers’ nonstandard work schedules and adolescent obesity: a population-based cross-sectional study in the Tokyo metropolitan area

Table 2 Association between mothers’ work schedule and adolescents’ obesity, overall and stratified by income level

	Crude model		Adjusted model 1^a		Adjusted model 2^b		Adjusted model 3^c
Mothers’ work schedule	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Overall (N = 1743)
Standard	1.00		1.00		1.00		1.00
Nonstandard	1.56	1.02–2.40	1.47	0.94–2.28	1.49	0.95–2.34	1.44	0.92–2.27
Not employed	1.20	0.71–2.04	1.21	0.70–2.09	1.22	0.71–2.11	1.18	0.68–2.04
Stratified by income level
Low–middle income (N = 621)
Standard	1.00		1.00		1.00		1.00
Nonstandard	0.93	0.49–1.74	0.97	0.50–1.86	0.97	0.50–1.90	0.88	0.40–1.74
Not employed	1.06	0.46–2.40	1.02	0.44–2.38	1.06	0.45–2.49	0.95	0.40–2.27
High income (N = 825)
Standard	1.00		1.00		1.00		1.00
Nonstandard	2.80	1.43–5.50	2.83	1.41–5.69	2.93	1.45–5.92	2.90	1.43–5.86
Not employed	1.59	0.69–3.66	1.90	0.81–4.50	1.89	0.80–4.48	1.83	0.77–4.37

^aAdjusted for adolescent’s sex, adolescent’s type of high school, adolescent’s part-time job, mother’s age, mother’s psychological distress, household income, living with grandparents, and living with siblings
^bAdjusted model 1 + father’s work schedule
^cAdjusted model 2 + adolescent’s lifestyle habits

ISSN: 1471-2458