Table 3.
Regression results considering hospital competition and OOP and reimbursement after adjusting for all covariables
| Factor | Surgical Group | OOP | Reimbursement | ||
|---|---|---|---|---|---|
| Proportional Change (95% CI) |
P Value | Proportional Change (95% CI) |
P Value | ||
| HHI | Prostatectomy |
7.141 (5.393, 8.889) |
< 0.001 |
−3.505 (−5.128, − 1.882) |
< 0.001 |
| Appendectomy |
0.920 (0.245, 1.596) |
0.008 |
−1.283 (− 1.959, − 0.608) |
< 0.001 | |
| Control Variablesa | Yes | Yes | |||
Abbreviations: OOP out of pocket; HHI Herfindahl-Hirschman Index; CI confidence interval
aAdjusted by the following control variables: gender, age, occupation, insurance, admission severity, critical condition, admission approach, length of stay, hospital classification, hospital level, profit and ownership classification, urbanization rate, GDP per capita, and a set of county dummies