Table 1.
Selected maternal characteristics by cohort*
| Preterm Cohort | Term Cohort | |||||
|---|---|---|---|---|---|---|
| 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 | ||||||
| 1 | 8 | 9 | N.S. | 0 | 7 | 0.0086 |
| 2 | 6 | 5 | 9 | 4 | ||
| >2 | 8 | 7 | 14 | 10 | ||
| Parity | ||||||
| 0 | 9 | 10 | N.S. | 1 | 8 | 0.0203 |
| 1 | 8 | 5 | 8 | 4 | ||
| >1 | 5 | 6 | 14 | 9 | ||
* All specimens derived from these subjects were collected at Sotero del Rio Hospital, Santiago, Chile
** Values are given as mean ± standard deviation; the range is given in parentheses
N.S., not significant