Linear regression model parameters including regression coefficients, their confidence intervals, P values, and Wald statistic values
| Parameter | Coefficient (b) | Confidence Interval | Standard Error | P Value | Wald Statistic |
|---|---|---|---|---|---|
| Intercept | −1081.1 | [−1403.4, −0.7587] | 163.5 | <.0001 | 43.7 |
| Age at procedure | 18.6 | [3.1, 34.0] | 7.8 | .018 | 5.6 |
| Procedure type | 454.9 | [261.7, 648.2] | 98.0 | <.0001 | 21.5 |
| No procedures | 555.5 | [487.7, 623.3] | 34.4 | <.0001 | 260.9 |