The relationship between long working hours and depression among first-year residents in Japan

BMC Medical Education

Table 3 Association between the number of work hours per week and new-onset depressive symptoms

		Odds ratio	95%CI
Mean number of work hours per week	< 60 h	1.00
	60 to < 80 h	1.9	0.92-4.00
	80 to < 100 h	2.83	1.36-5.88
	≥100 h	6.96	3.05-15.90
Age		1.02	0.96-1.07
Sex^a		1.15	0.84-1.60

Base on a binomial logistic regression analysis where the dependent variable was the presence of new-onset depressive symptoms and the independent variables were mean number of work hours per week (4 categories), age, and sex
Abbreviations: CI confidence interval
^aCoded as: 0 = male; 1 = female

ISSN: 1472-6920