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Table 1 Baseline characteristics & gestational age at randomization

From: The effect of early administration of rectal progesterone in IVF/ICSI twin pregnancies on the preterm birth rate: a randomized trial

  Progesterone group Control group P value
(n) 102 97
Maternal age (years) 29.5 ± 4.8 30 ± 4.6 0.498
BMI (kg/m2) 30.5 ± 5.8 30.1 ± 4.8 0.623
Gestational age at randomization (weeks) 12.7 ± 0.9 12.5 ± 1 0.341
  1. Data is expressed either as a mean ± SD or n (%)