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Table 1 Maternal urine samples according to gestation (nearest week) in Down syndrome and controls

From: Direct and rapid mass spectral fingerprinting of maternal urine for the detection of Down syndrome pregnancy

Gestational (weeks) Down’s syndrome Controls
12 0 3
13 8 26
14 0 10
12-14 8 39
15 1 15
16 8 19
17 1 10
15-17 10 44
  1. Numbers in bold indicate subtotals at 12-14 and 15-17 weeks gestation.