Fig. 1From: Health care inequality under different medical insurance schemes in a socioeconomically underdeveloped region of China: a propensity score matching analysisHospitalization expenses for different hospital types under different insurance schemes (Comparison of UEBMI enrollees and URBMI enrollees: first-level hospital, Z = 3.931, p < 0.001; secondary-level hospital, Z = 6.824, p < 0.001; tertiary-level hospital, Z = −2.133, p = 0.033)Back to article page