Analysis of the effect of serious illness medical insurance on relieving the economic burden of rural residents in China: a case study in Jinzhai County

Table 4 RD results of SIMIS

lwald	AMIPP (H = 0.6581)	IMIPP (H = 0.5345)	IMSPP (H = 0.5949)	OMISPP (H = 1.079)
No covariates added	0.025*** (0.010)	0.020* (0.011)	−0.006 (0.009)	−0.016** (0.006)
Covariates added	0.022*** (0.008)	0.014** (0.006)	− 0.006 (0.009)	− 0.011** (0.005)

Note: **** represents significance at the level of 1%, ** represents significance at the level of 5%, and * represents significance at the level of 10%. H represents the optimal bandwidth. The values in brackets are SDs of lwald

ISSN: 1472-6963