Table 3.
Length of stay (LOS) and cost characteristics of infants born to mothers without and with obesity after adjusting for smoking status, pre-pregnancy diabetes, gestational diabetes, pre-pregnancy hypertension, gestational hypertension.
| Infants born to Mothers with BMI <30 BMI kg/m2 (n = 7,456) | Infants born to Mothers with BMI ≥30 kg/m2 (n = 4,151) | p-value | |
|---|---|---|---|
| Total LOS in days (± SD) | 5.4 (7.5) | 5.8 (7.6) | 0.40 |
| NICU LOS in days (± SD) | 3.5 (8.1) | 3.8 (8.3) | 0.86 |
| Newborn Nursery LOS in days (± SD) | 1.9 (1.5) | 2.0 (1.5) | <0.01 |
| Mean total cost per infant (± SD) | $12,290.10 ($21,543.39) | $13,372.86 ($22,240.12) | 0.39 |
| Mean direct cost per infant (± SD) | $5,351.62 ($10,204.08) | $5,802.89 ($10,626.56) | 0.49 |
| Costs per infant by setting | |||
| NICU | |||
| Mean total cost per infant (± SD) | $8,915.06 ($21,772.61) | $9,734.52 ($22,254.07) | 0.76 |
| Mean direct cost per infant (± SD) | $4,117.94 ($10,193.37) | $4,468.27 ($10,342.71) | 0.83 |
| Full-term nursery | |||
| Mean total cost per infant (± SD) | $3,375.04 ($4,994.18) | $3,638.34 ($6,316.69) | 0.03 |
| Mean direct cost per infant (± SD) | $1233.68 ($2,264.87) | $1,334.62 ($3,271.44) | 0.06 |