Table 6.

Univariate analysis after 6 months of outpatient care

Background factor	Non-smoker	Smoker	P value
Sex (male/female)	61/23	65/44	0.068
Age	59.9 (36–77)	53.9 (26–81)	0.002
TDS: average	8.19	8.14	0.837
CO: average	16.5 (2–59)	17.7 (1–53)	0.653
BI: average	970 (200–3000)	816 (200–2580)	0.040
BDI-II: max score	11.2 (0–47)	15.9 (0–57)	0.018
Side effects (presence/absence)	44/40	61/48	0.663
Reducing drug (presence/absence)	32/52	35/74	0.446
Mental disease (presence/absence)	7/77	19/90	0.066