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Table 2 Demographic characteristics in 447 pregnancies. Demographic characteristics of 447 pregnant women in 12 hospitals in Korea

From: An adaptive detection method for fetal chromosomal aneuploidy using cell-free DNA from 447 Korean women

Characteristic

Value

No. of patients

447

Maternal age - year

 Mean

35

 Range

20 ~ 46

Gestational age - week

 Mean

15

 Median

16

 Range

11 ~ 22

Pregnancy trimester - no. (%)

 First: 1–13 week gestation

137 (30.6)

 Second: 14–26 week gestation

310 (69.4)

 Male fetus - no. (%)

249 (52.5)

 Female fetus - no. (%)

225 (47.5)

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BMC Medical Genomics

ISSN: 1755-8794

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