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Table 2 Prevalence rates of microcephaly stratified by the living conditions in Recife, Brazil

From: Microcephaly epidemic related to the Zika virus and living conditions in Recife, Northeast Brazil

Strata Microcephaly Notified Microcephaly Cases Newborns Prevalence per 10,000 newborns 95% CI
1 10 3 2487 12.1 2.5–35.2
2 21 8 1290 62.0 26.8–121.8
3 116 55 7984 68.9 51.9–89.6
4 200 76 11,417 66.6 52.5–83.3
TOTAL 347 142 23,178 61.3 51.6–72.2
  1. Kruskal-Wallis test: χ2 = 10.94; p = 0.012