Table 1.

Covariate Balance Analysis in Full Inpatient Sample: Summary Statistics for Covariates by Patient Category

	(1)	(2)	(3)	(4)	(5)
	Means (Standard Deviations) of indicated Variables
	On-Base		Off-Base		Difference-in-Difference for Indicated Variable
	Active-Duty	Non-Active-Duty	Active-Duty	Non-Active-Duty
Panel A: Evaluating Covariate Balance by Individual Covariates
Male	0.61 (0.49)	0.02 (0.14)	0.68 (0.47)	0.04 (0.10)	−0.06 (0.02)
Charlson Comorbidity Score	0.13 (0.60)	0.17 (0.60)	0.22 (0.79)	0.22 (0.73)	−0.03 (0.01)
(Omitted: Junior Enlisted)
Senior Enlisted	0.27 (0.44)	0.40 (0.49)	0.36 (0.48)	0.46 (0.50)	−0.03 (0.01)
Warrant Officer	0.01 (0.09)	0.01 (0.11)	0.01 (0.11)	0.02 (0.14)	0.00 (0.00)
Junior Officer	0.04 (0.19)	0.08 (0.27)	0.03 (0.17)	0.05 (0.22)	−0.02 (0.00)
Senior Officer	0.04 (0.20)	0.06 (0.22)	0.06 (0.23)	0.09 (0.28)	0.01 (0.00)
Pay-Grade Missing	0.27 (0.44)	0.18 (0.38)	0.40 (0.49)	0.27 (0.44)	−0.05 (0.01)
(Omitted: Age < 30 Years Old)
Age 30-40 Years Old	0.22 (0.42)	0.29 (0.45)	0.25 (0.44)	0.29 (0.45)	−0.03 (0.01)
Age 40-50 Years Old	0.10 (0.31)	0.07 (0.26)	0.15 (0.35)	0.09 (0.28)	−0.03 (0.01)
Age 50-60 Years Old	0.02 (0.15)	0.01 (0.09)	0.04 (0.19)	0.01 (0.11)	−0.01 (0.00)
Panel B. Evaluating Covariate Balance Collectively
Predicted Log Relative Weighted
Product (based on regression of log of relative weighted product on covariates)	−0.29 (0.47)	−0.53 (0.35)	−0.26 (0.49)	−0.49 (0.38)	0.02 (0.02)

Notes: Standard errors in Column 5 are corrected for within-catchment area correlation in the error term (based on catchment areas as they are defined at the beginning of the sample, prior to any base closings) and are reported in parentheses. Pay-grade status is based on the officer/enlisted status of the household sponsor.