. 2017 Aug 14;177(10):1523–1524. doi: 10.1001/jamainternmed.2017.3433

Table. Unlawful and Justifiable Homicide Analysis.

Type of Homicide	Mean Monthly Count		Mean Monthly Rate per 100 000 Population		Trend Change (RR) (95% CI)^a	P Value^b	Step Change (RR) (95% CI)^c	P Value
Type of Homicide	Before Law	After Law	Before Law	After Law	Trend Change (RR) (95% CI)^a	P Value^b	Step Change (RR) (95% CI)^c	P Value
Justifiable	2.80	8.50	0.02	0.04	1.00 (1.00-1.01)	.001	1.75 (1.24-2.48)	.001
Unlawful	79.12	90.86	0.47	0.48	0.998 (0.998-0.999)	<.001	1.22 (1.14-1.30)	<.001

Abbreviation: RR, relative risk.

^{^a}

Robust SEs are reported following statistically significant Breusch–Godfrey and Seasonal Breusch–Godfrey tests for autocorrelation.

^{^b}

P values are 2-sided.

^{^c}

Effects adjusted for seasonality using harmonic terms.