Differences in U.S. and VA Safety Climate, Decomposition Results

	Mean	[95% CI]/(SE)
Predicted mean PPR for
Non-VA	15.3	[16.1–17.2]
VA	16.7	[14.9–15.6]
Total difference between U.S. and VA (based on predicted means)	1.39**	−0.33
Difference attributable to variation in†
Male	0.108*	−0.048
Age >50 years	−0.298**	−0.054
Time at facility >10 years	0.036	−0.046
Being nurse	−0.115**	−0.034
Being senior manager	0.032*	−0.015
Employment in HHU	−0.373**	−0.05
Region South	0.041*	−0.02
Region Midwest	−0.194**	−0.04
Region East	−0.147**	−0.041
Bedsize (large)	−0.028	−0.017
Urban location	−0.066	−0.07
Nurse staffing ratio	0.237**	−0.07
Difference attributable to variation in sample characteristics	−0.766**	−0.16
Difference attributable to differences in model coefficients (differential effects of sample characteristics)	2.160**	−0.35

^**p<.01

^*p<.05.

^†These use U.S. model estimates from Table 3a as reference.

CI, confidence interval; HHU, high hazard unit; PPR, percent problematic response; SE, standard error; VA, Veterans Health Administration.