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. 2018 Apr 16;18:501. doi: 10.1186/s12889-018-5431-8

Table 5.

Impact Assessment of PFHI on CHE at 10% and 25% threshold using Propensity Score Matching (PSM)

Public insurance Vs. No Insurance Treated Controls Difference S.E. T-test P > z 95% confidence interval
Model A (10% CHE) Unmatched 0.36 0.41 −0.05 0.01 −7.13
ATT 0.36 0.49 −0.13 0.02* −5.15 0.00* −0.16, −0.10*
ATU 0.41 0.41 0.01
ATE −0.01
Model B (25% CHE) Unmatched 0.16 0.19 −0.02 0.01 −4.71
ATT 0.16 0.23 −0.06 0.01* −3.21 0.00* −0.09, − 0.04*
ATU 0.19 0.20 0.01
ATE −0.00

Note: * based on Bootstrap Standard Error

ATT Average Treatment on Treated, ATU Average Treatment on Untreated, ATE Average Treatment Effect