Factors influencing prenatal screening for Down's syndrome: evidence from Zhejiang (China).

This article attempts to identify the factors that influence prenatal screening uptake. About 1400 postdelivery, still-hospitalized women in 15 hospitals in Zhejiang Province were surveyed from November to December 2007. Univariate analysis was used to describe screening uptake and compare respondents with different characteristics. Stepwise logistic regression (forward) was then used to assess the relative strength of those influencing factors. It was found that 49.7% of the respondents received maternal serum prenatal screening. The factors that influenced prenatal screening service utilization included place of residence (urban vs countryside), migrant versus nonmigrant status, attitudes toward screening, frequency of routine prenatal checkups, and doctor's advice. Migrants had a lower probability of getting screened than permanent residents (odds ratio = 0.456; 95% confidence interval [CI] = 0.31, 0.68). The screening uptake probability of women with doctor's advice was 12 times as great as that of women without doctor's advice (95% CI = 7.91, 18.69).