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Table 1 Clinical characteristics of the study population

From: Genome-wide gene expression analysis in the placenta from fetus with trisomy 21

Characteristics Trisomy 21 (n = 8) Normal (n = 10) P value
Maternal Age (years) 36.8 ± 4.4 36.6 ± 3.4 0.897
Gestational age (weeks) 12.1 ± 0.4 12.3 ± 0.5 0.573
Body mass index (kg/m2) 22.3 ± 3.0 22.2 ± 2.3 0.897
Gravidity 2.4 ± 0.7 2.6 ± 0.8 0.460
Nullipara (n) 3 3 1.000
Gender-ratio (female:male) 3:5 3:7 1.000
  1. Data are presented as mean ± standard deviation