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

VariablesUnivariateMultivariate
HR95%CIP valueHR95%CIP value
Male0.680.61 to 0.760.0000.870.77 to 0.980.020
Age0.870.83 to 0.920.0000.850.81 to 0.890.000
Standard monthly income0.880.83 to 0.930.0000.910.86 to 0.970.003
Psychiatric medical histories9.328.46 to 10.270.0009.158.30 to 10.080.000
Smoking cessation1.020.86 to 1.210.7930.970.82 to 1.150.763