Correlation between the duration of labor and leptin concentration in cord blood

Objective: To evaluate the correlation of level of leptin in cord blood and duration of labor. Methods: Eighty-four pregnant women who had delivered during Jan. 2004-Jun. 2004. at the delivery unit of St. Mary’s Hospital of Catholic University Medical College. We checked the level of leptin in cord blood, total duration of labor (cervix 3 cm-delivery of placenta), age of pregnant women, body weight before pregnancy, body weight before delivery, weight of the baby and placenta, head circumference, abdominal circumference, and height of the baby. Leptin was checked by ELISA. Results: Cord blood leptin was in proportion to one’s pregnancy duration (umbilical vein p