Table 3.

Effect of smoking cessation on depressive disorders by Cox proportional hazards models (excluding users of smoking cessation medication) for fiscal years 2010–2014 in Fukuoka, Japan

Variables	Univariate			Multivariate
	HR	95％CI	P value	HR	95％CI	P value
Male	0.68	0.61 to 0.76	0.000	0.87	0.77 to 0.98	0.020
Age	0.87	0.83 to 0.92	0.000	0.85	0.81 to 0.89	0.000
Standard monthly income	0.88	0.83 to 0.93	0.000	0.91	0.86 to 0.97	0.003
Psychiatric medical histories	9.32	8.46 to 10.27	0.000	9.15	8.30 to 10.08	0.000
Smoking cessation	1.02	0.86 to 1.21	0.793	0.97	0.82 to 1.15	0.763