Table 2.

Suicide mortality rate of police officers by demographic characteristics.

Characteristics	No. at risk	No. of suicides	Person-years	Rate* (95% CI)	P-value
Gender					0.097
Male	3000	30	87,673	34.2 (23.9, 48.9)
Female	228	0	4,114	0
Race/Ethnicity					0.186
White	2892	29	85,719	33.8 (23.5, 48.7)
Black	248	0	4,427	0
Hispanic	78	1	1,460	68.5 (9.6, 486.2)
Age first employed					<0.001
≤ 24 years	1134	8	33,977	23.5 (11.8, 47.1)
25–29 years	1463	16	41,678	38.4 (23.5, 62.7)
≥ 30 years	631	6	16,133	37.2 (16.7, 82.8)
Years of Service					<0.001
≤ 19	904	9	17,167	52.4 (27.3, 100.8)
20–29	1121	10	35,211	28.4 (15.3, 52.8)
≥ 30	1203	11	39,409	27.9 (15.5, 50.4)
Decade Officer Worked					0.001
1950s	389	6	6,239	96.2 (43.2, 214.1)
1960s	447	9	11,531	78.1 (40.6, 150.0)
1970s	515	5	19,219	26.0 (10.8, 62.5)
1980s	522	6	21,621	27.8 (12.5, 61.8)
1990s	396	1	14,408	6.9 (1.0, 49.3)
2000–2005	959	3	18,770	16.0 (5.2, 49.6)

^*The suicide mortality rate is expressed per 100,000 person-years. The 95% CI was computed using the Poisson regression model.

P-values for gender and race are for any difference. P-values for age at employment, years of service, and year of separation are for tests for trend from Poisson regression model.