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. 2016 Sep 20;4:e2483. doi: 10.7717/peerj.2483

Table 7. Neonatal outcome–Growth characteristics at discharge.

Conservative (n = 67) Aggressive (n = 74) P
Postmenstrual age 38+2 [36+5–39+5]a 38+2 [36+6–39+6]a 0.991
Weight (g) 2050 [1802–2235]a 2461 [2020–2783]a 0.000
Z-score (SD) −2.34 [−2.85–−1.74]a −1.38 [−1.9–−0.74]a 0.000
ΔZ-score (SD) −1.7 [−2.16–−1.27]a −0.82 [−1.16–−0.32]a 0.000
Length (cm) 43 [41–45]a 44 [42–46]a 0.017
Z-score (SD) −2.8 [−3.9–−2.3]a −2.1 [−2.85–−1.4]a 0.000
ΔZ-score (SD) −2.1 [−2.85–−1.60]a −1.35 [−1.92–−0.58]a 0.000
Head circumference (cm) 30.6 [29.5–31.5]a 31.6 [30.3–33.0]a 0.007
Z-score (SD) −2.1 [−2.8–−1.5]a −1.4 [−1.82–−0.8]a 0.000
ΔZ-score (SD) −1.5 [−2.03–−1.08]a −0.8 [−1.63–−0.15]a 0.001
Body mass index 11.1 (10.3–11.9)c 12.4 (11.1–13.7) 0.000
Percentile 11.8 (3.8–33.3)d 41.2 (21.4–67.9)e 0.000
<10th 25 (43.8)b,d 6 (9.2)b,e 0.000
>90th 2 (2.6)b,d 3 (4.6)b,e 0.562
Z-Score (SD) −1.2 (−1.8–−0.5)e −0.2 (−0.8–0.5)e 0.000
ΔZ-score (SD) −0.4 (−1.1–0.2)e 0.7 (−0.4–1.4)e 0.000

Notes.

Data were tested using students t test after inspection of histograms for normal distribution

P values < 0.05 were considered statistically significant and printed in bold letters

a

median and interquartile range.

b

number with percentage in parentheses.

c

Data of 2 infants missing.

d

Data of 10 infants missing.

e

Data of 9 infants missing.

GA
gestational age
SD
standard deviation