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Table 3 Sample size to detect prevalence of primary outcomes among ZIKV infected and uninfected study participants

From: International prospective observational cohort study of Zika in infants and pregnancy (ZIP study): study protocol

Proportion of pregnant women with ZIKV infectionPrevalence of congenital malformations and adverse fetal outcomes among ZIKV uninfected womenPrevalence of congenital malformations and adverse fetal outcomes among ZIKV infected womenTotal number of womenPower
15%1%2%600065%
800077%
10,00085%
3%600098%
2%4%600091%
20%1%2%600074%
800084%
10,00091%
25%600080%
800090%
10,00095%
2%4%600097%