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Table 1 Details of the 5,200 pregnant women participating in the screening program

From: Screening and prenatal diagnosis of survival motor neuron gene deletion in pregnant women in Zhaoqing city, Guangdong Province

Age group (years)

Number of women

95% confidence interval

≤ 25

 

1,235 (23.75%)

23.16–24.34%

26–34

 

3,125 (60.10%)

59.42–60.78%

≥ 35

 

840 (16.15%)

15.64–16.66%

Total

 

5,200 (100.00%)