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Comparison of BSID scores in the PB and LEV groups.
| BSID | SMD | 95% CI | P |
|---|---|---|---|
| Cognitive | 0.05 | −0.13 to 0.23 | 0.57 |
| Motor | 0.07 | −0.11 to 0.24 | 0.47 |
| Language | 0.32 | 0.14–0.50 | 0.0005 |
BSID, Bayley Scales of Infant development; SMD, standardized mean difference; CI, confidence interval.
