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Table 1 Demographic characters for 150 pregnancies with polyhydramnios

From: Evaluation of genetic variants using chromosomal microarray analysis for fetuses with polyhydramnios

  Total (n = 150) Isolated polyhydramnios (N = 39) Non-isolated polyhydramnios (N = 119)
Maternal age (y): mean ± SD 30.5 ± 4.9 31.2 ± 5.2 30.2 ± 4.7
Gestation age at invasive testing (wk): mean ± SD 27.5 ± 3.6 26.3 ± 3.1 27.9 ± 3.7
Specimen    
AF n (%) 81 (54.0%) 31 (79.5%) 50 (45.1%)
CB n (%) 69 (46.0%) 8 (20.5%) 61 (54.9%)
  1. AF, amniotic fluid; CB, cord blood