Table II.
Model Results for Weight, Length and Head Circumference over Time: Parameter Estimates (Standard error) and p-values from mixed effects regression models
| Variable | Weight | p-value | Head Circumference | p-value | Length | p-value |
|---|---|---|---|---|---|---|
| Intercept | 353.46 (69.33) | <0.001 | 18.85 (1.38) | <0.001 | 18.60 (2.16) | <0.001 |
| Group (H-HOPE vs control) | −9.77 (19.36) | 0.615 | 0.25 (0.15) | 0.098 | 0.35 (0.54) | 0.518 |
| Birth Head Circumference, cm | – | – | 0.39 (0.045) | <0.001 | – | – |
| Birth Length, cm | – | – | – | – | 0.54 (0.048) | <0.001 |
| Birthweight, kg | 0.84 (0.028) | <0.001 | – | – | – | – |
| Small for Gestational Age | – | – | −0.40 (0.17) | 0.024 | – | – |
| Chronological age at baseline, day | 21.80 (1.63) | <0.001 | 0.074 (0.014) | <0.001 | 0.090 (0.019) | <0.001 |
| Sex (Male=1) | – | – | – | – | 0.66 (0.23) | 0.005 |
| Race (Latina=1) | −46.65 (17.54) | 0.009 | −0.42 (0.16) | 0.009 | 0.65 (0.23) | 0.005 |
| Infant morbidity score (POPRAS) | −2.63 (0.57) | <0.001 | −0.018 (0.0050) | <0.001 | – | – |
| Daily Calories/Kg | −0.084 (0.023) | <0.001 | 0.0025 (0.00071) | <0.001 | – | – |
| Day | 14.38 (2.82) | <0.001 | 0.10 (0.011) | <0.001 | 0.26 (0.079) | 0.001 |
| Day*Day | 0.19 (0.064) | 0.003 | – | – | −0.0090 (0.0039) | 0.020 |
| Daily Calories/Kg *Day | 0.0054 (0.0019) | 0.004 | – | – | – | – |
| Infant morbidity score (POPRAS)*Day | 0.096 (0.036) | 0.007 | – | – | – | – |
| Group*Day | 2.80 (1.36) | 0.040 | – | – | −0.27 (0.11) | 0.015 |
| Group*Day*Day | – | – | – | – | 0.017 (0.0052) | 0.001 |