Table 7.
Comparison of Perinatal Physiologic and Background Characteristics of Children Classified Between Cumulative PNS Exposure Groups
| No–Low PNS (≤0.2 mg/kg) |
High PNS (>0.2 mg/kg) |
|||||
|---|---|---|---|---|---|---|
| n | M | n | M | Test | p | |
| Male (%) | 25 | 40 | 20 | 70 | χ 2 | .04* |
| 5-minute Apgar score <5 (%) | 25 | 7.28 | 20 | 5.7 | t test | .03* |
| Sepsis (%) | 25 | 24 | 20 | 55 | χ 2 | .03* |
| BPD (%) | 24 | 29 | 20 | 70 | χ 2 | .007* |
| ROP (%) | 25 | 20 | 20 | 35 | χ 2 | .26 |
| NEC (%) | 24 | 13 | 20 | 20 | χ 2 | .50 |
| IVH (%) | 25 | 20 | 20 | 15 | χ 2 | .66 |
| Length of stay (days) | 25 | 54 | 20 | 82.6 | t test | .001* |
| Discharge HC (cm) 24 | 24 | 32.2 | 20 | 33.4 | F test | .02* |
| Discharge weight (percentile) 25 | 25 | 31.5 | 20 | 15.5 | F test | .01* |
| Discharge length (cm) 24 | 24 | 45.6 | 20 | 43.3 | F test | .01* |
| Any breast milk feeds (%) | 25 | 28 | 20 | 45 | χ 2 | .24 |
| Developmental follow-up (%) | 25 | 64 | 20 | 65 | χ 2 | .94 |
| Maternal smoke (%) | 25 | 16 | 18 | 6 | χ 2 | .29 |
| CP (%) | 25 | 12 | 20 | 5 | χ 2 | .41 |
| GA† antenatal steroid (weeks) | 21 | 27.4 | 15 | 26.4 | t test | .13 |
| Chorioamnionitis (%) | 25 | 12 | 20 | 10 | χ 2 | .83 |
| Maternal age at delivery (years) | 25 | 29.4 | 20 | 29.9 | t test | .77 |
| Prenatal care (%) | 25 | 76 | 20 | 85 | χ 2 | .45 |
| PROM >24 hours (%)‡ | 25 | 20 | 18 | 6 | χ 2 | .18 |
*
Statistically significant at p < .05.
†
Gestational age at time of delivery of antenatal steroids.
‡
Premature rupture of membranes greater than 24 hours prior to time of delivery.