Table 3. Violent crime convictions in 2006–2009 in individuals treated with SSRI medication compared to non-treatment periods in the same person stratified by sex, age, dose, and medication type using stratified Cox regression models.

Characteristic	HR (95% CI)	p-Value	Number of Events	Absolute Risk, Percent (n)
Sex
Males	1.22 (1.09–1.37)	<0.001	6,905	2.1 (5,020)
Females	1.21 (0.94–1.56)	0.141	1,687	0.3 (1,418)
Age
15 to 24 y	1.43 (1.19–1.73)	<0.001	2,798	3.0 (2,081)
25 to 34 y	1.20 (0.95–1.52)	0.125	1,966	1.6 (1,454)
35 to 44 y	1.06 (0.83–1.35)	0.666	1,905	1.2 (1,457)
45 y and over	1.07 (0.84–1.35)	0.594	1,918	0.3 (1,446)
Sex and age: males
15 to 24 y	1.40 (1.13–1.73)	0.002	2,169	6.6 (1,540)
25 to 34 y	1.16 (0.90–1.49)	0.265	1,629	3.6 (1,173)
35 to 44 y	1.11 (0.85–1.46)	0.428	1,538	2.8 (1,133)
45 y and over	0.97 (0.75–1.25)	0.792	1,566	0.8 (1,174)
Sex and age: females
15 to 24 y	1.75 (1.08–2.84)	0.023	629	1.2 (541)
25 to 34 y	1.67 (0.88–3.18)	0.119	337	0.5 (281)
35 to 44 y	0.76 (0.42–1.41)	0.388	367	0.4 (324)
45 y and over	1.80 (0.97–3.32)	0.062	352	0.1 (272)
Cumulative SSRI exposure
Low SSRI exposure	1.27 (1.10–1.47)	0.001	896	n/a
Moderate SSRI exposure	1.11 (0.96–1.28)	0.163	1,038	n/a
High SSRI exposure	1.06 (0.88–1.29)	0.528	562	n/a
Type of SSRI medication
Fluoxetine	1.16 (0.88–1.52)	0.287	1,276	1.4 (916)
Citalopram	1.14 (0.96–1.36)	0.130	3,088	0.6 (2,292)
Paroxetine	1.24 (0.87–1.77)	0.227	784	1.2 (577)
Sertraline	1.22 (1.02–1.46)	0.031	3,003	1.0 (2,241)
Escitalopram	1.02 (0.77–1.34)	0.904	1,446	1.2 (1,051)

Analyses excluded individuals with only one dispensed prescription. There were too few individuals for separate analyses of fluvoxamine.

n/a, not applicable.