Table 4.
Postnatal Neonatal Intensive Care Unit Events by Maternal Smoking Status
| Postnatal NICU Events (n = 587) | Smokers (n = 80) | Nonsmokers (n = 507) | P Value |
|---|---|---|---|
| Pneumonia | 10 (12.5%) | 48 (9.5%) | 0.40 |
| Necrotizing enterocolitis | 10 (12.5%) | 56 (11.0%) | 0.70 |
| Sepsis | 16 (20%) | 93 (18.3%) | 0.72 |
| Threshold retinopathy | 9 (11.3%) | 38 (7.5%) | 0.25 |
| Days of CPAP | 12.5 (4.5–23) | 14 (6–29) | 0.13 |
| Required CPAP at 36 wk PMA | 9 (11.3%) | 29 (5.7%) | 0.06 |
| Days of MV | 14 (2–40) | 6 (2–21) | 0.04 |
| Required MV at 36 wk PMA | 7 (8.8%) | 23 (4.5%) | 0.44 |
| Length of stay in NICU | 91.5 (74–118) | 85 (70–110) | 0.11 |
| Discharged on oxygen | 48 (60.0%) | 293 (57.8%) | 0.71 |
| Mortality | 2 (2.5%) | 6 (1.2%) | 0.35 |
| Total oxygen days (includes 1-yr follow-up) | 73 (39.5–110.5) | 73 (43.5–98) | 0.68 |
Definition of abbreviations: CPAP = continuous positive airway pressure; MV = mechanical ventilation; NICU = neonatal intensive care unit; PMA = postmenstrual age.
Descriptive statistics [count (percent) or median (interquartile range)] and univariate comparisons are presented for postnatal neonatal intensive care unit events, stratified by maternal smoking status.