Table A3.
Growth parameters (weight, length, and head circumference) compared among quartiles of growth trajectory.
| Growth Parameter | Zdiff ≤ −1.34 1 (Number = 51) |
−1.34 < Zdiff ≤ −0.93 1 (Number = 51) |
−0.93 < Zdiff ≤ −0.57 1 (Number = 51) |
Zdiff > −0.57 1 (Number = 51) |
Total (Number = 204) |
p-Value 2 |
|---|---|---|---|---|---|---|
| Birth Weight (g) | ||||||
| Mean (SD) 3 | 1371.86 (389.62) | 1350.90 (345.53) | 1424.94 (425.38) | 1428.04 (357.61) | 1393.94 (379.46) | 0.67 |
| Birth Weight z-score | ||||||
| Mean (SD) | 0.53 (0.89) | −0.08 (0.77) | −0.28 (1.02) | −0.67 (0.80) | −0.12 (0.97) | <0.001 |
| Birth Length (cm) | ||||||
| Mean (SD) | 38.76 (3.79) | 38.59 (3.62) | 39.45 (4.09) | 39.98 (3.38) | 39.20 (3.75) | 0.21 |
| Birth Length z-score | ||||||
| Mean (SD) | 0.46 (1.01) | −0.11 (1.03) | −0.18 (1.29) | −0.39 (0.88) | −0.06 (1.10) | <0.001 |
| Birth Head Circumference (cm) | ||||||
| Mean (SD) | 26.91 (2.23) | 27.11 (2.09) | 27.75 (2.53) | 27.88 (2.18) | 27.41 (2.28) | 0.08 |
| Birth Head Circumference z-score | ||||||
| Mean (SD) | 0.35 (0.87) | −0.09 (0.97) | −0.14 (1.19) | −0.52 (1.06) | −0.10 (1.07) | <0.001 |
| Discharge Weight (g) | ||||||
| Mean (SD) | 2451.12 (372.19) | 2397.10 (376.48) | 2410.67 (458.92) | 2431.57 (444.86) | 2422.61 (412.40) | 0.92 |
| Discharge Weight z-score | ||||||
| Mean (SD) | −1.26 (0.88) | −1.22 (0.75) | −1.06 (0.98) | −0.96 (0.87) | −1.13 (0.88) | 0.28 |
| Discharge Length (cm) | ||||||
| Mean (SD) | 46.25 (2.55) | 45.50 (2.45) | 45.50 (2.75) | 45.30 (2.37) | 45.64 (2.54) | 0.25 |
| Discharge Length z-score | ||||||
| Mean (SD) | −0.90 (1.13) | −1.05 (0.96) | −0.92 (1.11) | −0.98 (0.94) | −0.96 (1.03) | 0.88 |
| Discharge Head Circumference (cm) | ||||||
| Mean (SD) | 31.98 (1.74) | 31.92 (1.44) | 31.98 (1.77) | 32.00 (1.49) | 31.97 (1.60) | 0.99 |
| Discharge Head Circumference z-score | ||||||
| Mean (SD) | −0.99 (0.97) | −0.88 (0.81) | −0.71 (1.03) | −0.66 (0.82) | −0.81 (0.92) | 0.25 |
| Growth Velocity (gm/kg/day) | ||||||
| Median (Range) | 10.7 (0.9–13.2) | 11.7 (4.2–16.6) | 12.7 (7.5–16.7) | 14.2 (10.2−20.8) | 12.1 (0.9 – 20.8) | <0.001 |
| Change in Length z-score | ||||||
| Mean (SD) | −1.36 (0.94) | −0.94 (0.85) | −0.74 (0.76) | −0.59 (0.65) | −0.91 (0.85) | <0.001 |
| Change in Weight z-score | ||||||
| Mean (SD) | −1.79 (0.41) | −1.14 (0.11) | −0.79 (0.10) | −0.29 (0.24) | −1.0 (0.60) | <0.001 |
| Change in Head Circumference z-score | ||||||
| Mean (SD) | −1.35 (0.85) | −0.78 (0.73) | −0.57 (0.77) | −0.14 (0.70) | −0.71 (0.87) | <0.001 |
1 Change in weight z-score: Zdiff = Zdischarge − Zbirth; 2 p-Value calculated by Analysis of Variance (ANOVA) test. 3 standard deviation.