Adjusted Risk Differences for Body Mass Index and Duration of Labor Analgesia and the Risk of Instrumental Delivery in 1,231 Parturients
| Term | Standardized Risk Difference | 95% CL | Std Error | Log-Ratio Chi-Square | P Value |
|---|---|---|---|---|---|
| Intercept | 0.09 | 0.01 to 0.17 | 0.04 | 5.4 | 0.0207 |
| Delivery body mass index | –0.001 | –0.004 to 0.001 | 0.002 | 1.0 | 0.3261 |
| Duration of labor analgesia | 0.004 | 0.001 to 0.007 | 0.002 | 5.2 | 0.0221 |
Notes: P values <0.005 are statistically significant.2 The 95% CLs are Wald-based as the dataset is >1,000 rows.
CL, confidence limit; Std Error, standard error of the risk difference.