Table 1
Characteristics of study and control groups
| Meconium (n=60) | Controls (n=26) | |
|---|---|---|
| Results expressed as mean (SD) [range]. | ||
| *p<0.05, ***p<0.001. | ||
| Gestational age (wk) | 39.1 (1.1) [37 to 41] | 38.3 (1.0) [37 to 41] |
| Birth weight (g) | 3337 (419) [2350 to 4400] | 3358 (368) [2750 to 4000] |
| Maternal age (y) | 27.6 (5)* [17 to 38] | 31.2 (4)* [24 to 41] |
| pH | 7.24 (0.08)* [7.06 to 7.40] | 7.31 (0.04)* [7.2 to 7.43] |
| Base excess (mEq/l) | −5.98 (3.3)*** [−13.40 to 0] | −2.59 (2.1)*** [−0.20 to −7.9] |
| Apgar score (5th minute) | 9.16 (1.1)* [5 to 10] | 9.62 (0.5)* [8 to 10] |
| Endothelin 1 (pg/ml) | 5.23 (9.2)*** [0.052 to 45.07] | 1.12 (0.89)*** [0.10 to 3.19] |
