Table A3.

Interrupted Time Series Models of Firearm Undetermined Injuries

	Firearm Undetermined Injuries
	Rate per 100,000
	AR(1) TSR	AR(1) TSR	RE HLM	RE HLM	RE HLM +Int.
	(1)	(2)	(3)	(4)	(5)
T	0.00002	−0.0001	0.00000	−0.00001	0.00001
	(−0.0002|0.0002)	(−0.001|0.0003)	(−0.0002|0.0002)	(−0.0002|0.0002)	(−0.0002|0.0002)
COVID - State of Emergency	−0.065	−0.065	−0.049	−0.048	−0.052
	(−0.192|0.062)	(−0.200|0.071)	(−0.161|0.063)	(−0.161|0.065)	(−0.175|0.070)
COVID - Stay at Home	0.050	0.054	0.039	0.039	0.042
	(−0.080|0.181)	(−0.084|0.193)	(−0.076|0.154)	(−0.077|0.154)	(−0.084|0.168)
Post-Killing	0.164	0.170	0.138	0.138	0.054
	(0.029|0.299)	(0.023|0.316)	(0.020|0.255)	(0.020|0.257)	(−0.083|0.192)
T Post-Killing	−0.002	−0.002	−0.002	−0.002	−0.002
	(−0.006|0.002)	(−0.007|0.003)	(−0.006|0.002)	(−0.006|0.002)	(−0.006|0.002)
MPD Use of Force t-1		0.099		−0.0004	−0.0005
		(−0.221|0.420)		(−0.005|0.004)	(−0.005|0.004)
MPD Stops t-1		−0.007		−0.0001	−0.0002
		(−0.064|0.049)		(−0.001|0.001)	(−0.002|0.001)
MPD OIS t-1		−3.299		−0.160	−0.143
		(−12.654|6.055)		(−1.071|0.751)	(−1.090|0.805)
AR(1)	−0.058	−0.085
	(−0.183|0.067)	(−0.224|0.053)
Median HH Income					−0.00000
					(−0.00000|0.00000)
Percent Black					0.001
					(−0.001|0.003)
Post-Killing X Percent Black					0.005
					(0.003|0.008)
Constant	0.075	0.194	0.009	0.010	0.008
	(−0.098|0.249)	(−0.071|0.459)	(−0.146|0.163)	(−0.146|0.166)	(−0.185|0.201)
SD(ZCTA)			0.046	0.046	0.037
SD(Residual)			0.442	0.444	0.462
Observations	260	217	5,993	5,928	5,460
R2	0.057	0.068
Log Likelihood			−3,664.154	−3,668.384	−3,618.112
Akaike Inf. Crit.			7,354.308	7,368.768	7,274.223
Bayesian Inf. Crit.			7,441.387	7,475.767	7,399.722
Residual Std. Error	0.104 (df = 248)	0.110 (df = 202)
F Statistic	1.373 (df = 11; 248)	1.051 (df = 14; 202)
Models include controls for seasonality.	95% Confidence Intervals in parentheses