Table 1 Selected maternal characteristics by cohort*
| Â | Preterm Cohort | Term Cohort | ||||
|---|---|---|---|---|---|---|
| Â | PNL n = 22 | PTL n = 21 | P value | TNL n = 23 | STL n = 21 | P value |
Maternal age (y)** | 27.9 ± 6.7 (16-38) | 23.4 ± 7.2 (13-37) | 0.0399 | 29.3 ± 6.3 (19-41) | 26.4 ± 6.9 (16-43) | N.S. |
Gestational age at delivery (wk)** | 33.1 ± 2.7 (27.3-36.3) | 32.5 ± 3.0 (26.0-36.9) | N.S. | 39.2 ± 1.1 (37.9-41.1) | 39.5 ± 1.0 (37.6-41.1) | N.S. |
Birthweight (g)** | 1780 ± 520 (810-2810) | 1980 ± 640 (910-3250) | N.S. | 3524 ± 421 (2870-4750) | 3572 ± 263 (3100-3960) | N.S. |
Gravidity | Â | Â | Â | Â | Â | Â |
   1 | 8 | 9 | N.S. | 0 | 7 | 0.0086 |
   2 | 6 | 5 |  | 9 | 4 |  |
   >2 | 8 | 7 |  | 14 | 10 |  |
Parity | Â | Â | Â | Â | Â | Â |
   0 | 9 | 10 | N.S. | 1 | 8 | 0.0203 |
   1 | 8 | 5 |  | 8 | 4 |  |
   >1 | 5 | 6 |  | 14 | 9 |  |