Table 3.

Univariate logistic analysis for overdose of prescribed psychotropic drugs by age group

Age group	Univariate analysis Odds ratio (95% CI)	P-value
(a) Benzodiazepines
≤ 39	2.36 (0.96–6.13)	0.07
40–59	4.64 (1.61–13.4)	0.005^a
≥ 60	3.00 (0.98–9.14)	0.053
(b) Antidepressant	drugs
≤ 39	1.61 (0.57–4.53)	0.364
40–59	11.4 (2.35–55.8)	0.003^a
≥ 60	2.61 (0.40–17.0)	0.317
(c) Antipsychotic	drugs
≤ 39	2.54 (0.96–6.72)	0.061
40–59	2.71 (0.92–7.97)	0.071
≥ 60	4.00 (0.88–18.1)	0.07

n: Overdose/Other consciousness disorders; ≦39 years (72/28), 40–59 years (34/31) and ≧60 years (22/35)

^aSignificant difference