Estimating the Effectiveness of Health-Risk Communications with Propensity-Score Matching: Application to Arsenic Groundwater Contamination in Four US Locations

Table 4

Balance table, the sample means for the treated and matched control samples among survey respondents in regions with arsenic contamination of groundwater.

Variable	Means		value
	Treated	Control
EDU	14.000	14.114	0.558
AGE	49.200	49.911	0.955
INCOME/10,000	7.850	7.260	0.918
NM	0.080	0.107	0.980
NV	0.240	0.301	0.562
OK	0.080	0.137	0.647
WI	0.600	0.456	0.361