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. Author manuscript; available in PMC: 2011 Aug 29.
Published in final edited form as: Ann Hum Biol. 2008 Sep-Oct;35(5):462–474. doi: 10.1080/03014460802311062

TABLE 1. Maternal characteristics and fetal sex distribution among study groups. Data are expressed as median (interquartile) for continuous variables.

Uncomplicated Preterm labor Term birth P value
Maternal weight 59 (52-66) 58 (50-64) 0.11
Maternal height 1.56 (1.52-1.6) 1.56 (1.52-1.59) 0.23
Maternal BMI 23.9 (21.8-26.7) 23.5 (21.3-26.3) 0.31
Maternal age 25 (21-30) 23 (20-30) 0.13
Maternal parity 35.4% 35.7% 0.87
Fetal sex (m) 51.6 % 51.0 % 0.89