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Table 2 Clinical characteristics of the study population

From: Disease specific characteristics of fetal epigenetic markers for non-invasive prenatal testing of trisomy 21

Characteristics Pregnant women carrying trisomy 21 fetuses (n = 12) Pregnant women carrying normal fetuses (n = 38) Non pregnant women (n = 6) Pvalue
Age (years) 32.9 ± 3.5 35.3 ± 4.1 29.5 ± 0.7 0.198a
Body mass index (kg/m2) 21.7 ± 2.5 21.4 ± 2.6 21.1 ± 0.3 0.859a
Gestational age (weeks) 11.8 ± 0.8 12.2 ± 0.6 - 0.182b
Gender-ratio of fetus (male: female) 4:8 14:24 - -
  1. Data are presented as mean ± standard deviation.
  2. aone-way analysis of variance test.
  3. bt-test.