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Regression Analysis on the Ratio of Head Circumference to Ventricular Index
| Covariates | Estimate (95% CI) | p-value |
|---|---|---|
| Postmenstrual week (with 1-week increase) | −0.003 (−0.01, 0.005) | 0.49 |
| IVH grade I/II | 0.52 (0.43, 0.62) | <0.001 |
| IVH grade III/IV | Reference | Reference |
| CSF diversion-No | 0.47 (0.32, 0.63) | <0.001 |
| CSF diversion-Yes | Reference | Reference |
| Sex: Female | 0.01 (−0.07, 0.09) | 0.73 |
| Sex: Male | Reference | Reference |
