Additional file 2 of The effects of competition and bundled payment on patient reported outcome measures after hip replacement surgery

Additional file 2: Supplementary Table 1. Baseline characteristics of treatment groups prior to and post entropy balancing, six-years follow-up.附加文件2：补充表1。治疗组在熵平衡法（entropy balancing）处理前后的基线特征及六年随访情况。