Table I. Demographic and clinical characteristics of patients in the midtrimester and those at term with and without spontaneous labor.
| Midtrimester (n=38) |
pa | Term No Labor (n=39) |
Term In Labor (n=39) |
pb | |
|---|---|---|---|---|---|
| Maternal age (years) | 36 (35-38) |
<0.01 | 28 (22-33) |
22 (19-26) |
<0.01 |
| GA at amniocentesis (weeks) | 16 (16-17) |
<0.01 | 38.3 (37.9-39.1) |
38.5 (37.6-39.4) |
NS |
| GA at delivery (weeks) | 39 (38-40) |
0.03 | 38.3 (37.9-39.1) |
38.5 (37.6-39.4) |
NS |
| Birthweight (grams) | 3,332 (3,160-3,624) |
NS | 3,250 (3,095-3,563) |
3,390 (3,100-3,540) |
NS |
Values are expressed as median (interquartile range).
NS: not significant.
GA: Gestational Age
pa: comparison between patients in the mid-trimester and those at term not in labor
pb: comparison between patients at term not in labor and those at term in labor