Table 4.
Results of propensity score matching.
| Outcome Indicators | Matching Algorithm | Mean of Indicators | Results of ATT | Quality of Matching | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Treatment | Control | ATT | t | S.E. 1 | p > z 1 | 95% CI 1 | Mean Bias | Media Bias | Pseudo R2 | LRχ 2 | p > χ 2 | ||
| Overall | |||||||||||||
| NOV 2 | Raw 3 | 29.83 | 33.97 | −4.13 | −1.02 | 15.4 | 14.1 | 0.051 | 24.90 | <0.001 | |||
| NNM | 29.49 | 30.99 | −1.50 | −0.26 | 5.56 | 0.787 | (−12.40, 9.39) | 8.7 | 8.6 | 0.007 | 4.30 | 0.545 | |
| RBM | 29.24 | 31.06 | −1.83 | −0.38 | 3.62 | 0.614 | (−8.93, 5.27) | 3.9 | 3.6 | 0.002 | 1.40 | 0.924 | |
| KBM | 29.49 | 31.81 | −2.32 | −0.49 | 3.38 | 0.493 | (−8.95, 4.31) | 3.1 | 3.7 | 0.002 | 0.96 | 0.966 | |
| BOR 4(%) | Raw | 66.10 | 59.61 | 6.50 | 2.29 | 15.9 | 16.3 | 0.061 | 29.42 | <0.001 | |||
| NNM | 66.20 | 60.72 | 5.48 | 1.31 | 0.05 | 0.234 | (−0.11, 12.77) | 7.7 | 5.8 | 0.013 | 7.12 | 0.310 | |
| RBM | 66.20 | 60.34 | 5.85 | 1.72 | 0.03 | 0.082 | (−1.06, 12.77) | 3.7 | 3.0 | 0.002 | 1.10 | 0.981 | |
| KBM | 66.20 | 60.46 | 5.74 | 1.76 | 0.03 | 0.081 | (−0.2, 11.71) | 3.1 | 3.2 | 0.001 | 0.79 | 0.992 | |
| Eastern China | |||||||||||||
| NOV | Raw | 26.86 | 25.17 | 1.70 | 0.34 | 63.8 | 57.7 | 0.374 | 47.42 | <0.001 | |||
| NNM | 23.83 | 32.52 | −8.69 | −0.73 | 12.01 | 0.469 | (−32.22, 14.84) | 14.7 | 9.2 | 0.060 | 4.80 | 0.570 | |
| RBM | 24.49 | 37.56 | −13.07 | −1.27 | 12.44 | 0.294 | (−37.46,11.32) | 13.8 | 12.5 | 0.018 | 0.970 | 0.965 | |
| KBM | 23.83 | 33.13 | −9.30 | −1.13 | 8.89 | 0.296 | (−26.72, 8.13) | 7.6 | 6.3 | 0.009 | 0.740 | 0.981 | |
| BOR (%) | Raw | 57.69 | 39.04 | 18.65 | 3.95 | 68.7 | 65.7 | 0.405 | 51.37 | <0.001 | |||
| NNM | 56.81 | 42.50 | 14.31 | 1.73 | 0.09 | 0.117 | (−4.05, 32.68) | 17.2 | 20.2 | 0.060 | 5.36 | 0.498 | |
| RBM | 53.14 | 34.84 | 18.29 | 2.46 | 0.12 | 0.119 | (−4.82, 41.41) | 22.4 | 24.4 | 0.086 | 5.24 | 0.513 | |
| KBM | 56.77 | 41.57 | 15.20 | 2.02 | 0.09 | 0.093 | (−3.69, 34.09) | 14.3 | 13.7 | 0.062 | 5.35 | 0.500 | |
| Central China | |||||||||||||
| NOV | Raw | 53.97 | 71.52 | −17.55 | −1.46 | 28.8 | 23.6 | 0.167 | 21.18 | 0.001 | |||
| NNM | 53.11 | 52.97 | 0.14 | 0.01 | 13.55 | 0.992 | (−26.41, 26.69) | 5.8 | 6.0 | 0.008 | 1.02 | 0.961 | |
| RBM | 55.53 | 51.66 | 3.87 | 0.33 | 16.87 | 0.819 | (−29.21, 36.95) | 8.1 | 6.1 | 0.030 | 3.41 | 0.637 | |
| KBM | 53.11 | 54.98 | −1.87 | −0.18 | 12.25 | 0.879 | (−25.87, 22.13) | 5.7 | 6.2 | 0.010 | 1.25 | 0.940 | |
| BOR (%) | Raw | 72.00 | 75.86 | −3.86 | −0.82 | 25.6 | 17.7 | 0.172 | 21.83 | 0.001 | |||
| NNM | 72.66 | 76.79 | −4.13 | −0.69 | 0.08 | 0.626 | (−21.49, 13.23) | 14.5 | 13.0 | 0.041 | 5.31 | 0.504 | |
| RBM | 73.84 | 74.82 | −0.97 | −0.16 | 0.09 | 0.914 | (−19.18, 17.22) | 10.1 | 9.8 | 0.029 | 3.43 | 0.754 | |
| KBM | 72.66 | 76.47 | −3.81 | −0.66 | 0.08 | 0.620 | (−19.75, 12.14) | 8.5 | 8.1 | 0.019 | 2.45 | 0.874 | |
| Western China | |||||||||||||
| NOV | Raw | 20.94 | 12.60 | 8.34 | 3.61 | 24.8 | 13.0 | 0.087 | 19.00 | 0.002 | |||
| NNM | 20.70 | 14.80 | 5.90 | 2.04 | 2.84 | 0.038 | (0.33, 11.5) | 12.5 | 12.9 | 0.047 | 14.83 | 0.011 | |
| RBM | 20.79 | 15.28 | 5.51 | 2.07 | 2.50 | 0.027 | (0.61, 10.41) | 9.0 | 9.7 | 0.028 | 8.68 | 0.123 | |
| KBM | 20.59 | 15.06 | 5.53 | 2.34 | 2.15 | 0.010 | (1.31, 9.75) | 6.4 | 8.5 | 0.018 | 5.57 | 0.350 | |
| BOR (%) | Raw | 66.65 | 65.60 | 1.05 | 0.25 | 22.1 | 13.0 | 0.088 | 19.20 | 0.004 | |||
| NNM | 66.92 | 68.65 | −1.73 | −0.29 | 0.07 | 0.769 | (−16.03, 11.73) | 10.3 | 8.4 | 0.035 | 10.62 | 0.101 | |
| RBM | 66.84 | 69.08 | −2.23 | −0.38 | 0.07 | 0.746 | (−14.97, 10.50) | 6.3 | 6.3 | 0.017 | 4.74 | 0.577 | |
| KBM | 66.96 | 66.03 | 0.93 | 0.18 | 0.06 | 0.873 | (−10.81, 12.68) | 5.6 | 6.5 | 0.015 | 4.45 | 0.616 | |
Note: 1 The standard error, p-value and 95% CI of the average treatment effect on the treated (ATT) were obtained through the bootstrap method. 2 NOV: number of annual outpatient services (in thousands). 3 Raw: raw sample. 4 BOR: bed occupancy rate.