Clinical Study
Umbilical Cord Serum Erythropoietin Levels and Maternal Smoking in Pregnancy
Table 1
Relation between maternal smoking and neonatal characteristics.*
| | Nonsmokers | Smokers | |
| Number of subjects | 40 | 20 | | Maternal age (y) | | | NS | Number of parities | | | NS | Duration of gestation (wk) | | | NS | Birth weight (kg) | | | NS | Sex of neonate | | | | āMale | 23 (57%) | 10 (50%) | NS | āFemale | 17 (43%) | 10 (50%) | Apgar score | | | | ā1st minute | | | NS | ā5th minute | | | Cord blood | | | | āpH | | | NS | āPO2 (mmāHg) | | | NS | āPCO2 (mmāHg) | | | NS | āErythropoietin (IU/L) | | | .001 |
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*Data reported as mean or number (percent). ā NS, not significant ().
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