Table 2. Characteristics of the GENDEP suicidal ideation sample.

	RxSI+ cases (n=20) (%)	Non-SI controls (n=37) (%)	P-value
Sex			1.000
Male	5 (25.0%)	10 (27.0%)
Female	15 (75.0%)	27 (72.9%)
Mean age (years) (s.d.)	48.7 (13.3)	39.8 (12.8)	0.020
Drug			0.779
Escitalopram	12 (60.0%)	25 (67.6%)
Nortriptyline	8 (40.0%)	12 (32.4%)

Abbreviations: non-SI, controls without suicidal ideation; RxSI+, treatment-related suicidal ideation. P-value was determined using a chi-squared test, with the exception of age, where a nonparametric Mann–Whitney U-test was used.