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. 2016 Jan;106(1):e24–e34. doi: 10.2105/AJPH.2015.302902

TABLE 1—

Pooled Period Prevalence of Spina Bifida per 100 000 Births by Birth Population and Fortification Status (Meta-Analysis): World Population, 1985–2010

Fortification Mandatory
Fortification Not Mandatory
Birth Population No. of Studies Prevalence (95% CI) No. of Studies Prevalence (95% CI)
Live births 14 33.86 (31.05, 36.92) 34 48.35 (41.07, 56.93)
Live births and stillbirths 13 30.37 (27.42, 33.63) 37 47.74 (43.66, 52.20)
Live births, stillbirths, and terminations of pregnancy 14 35.22 (32.18, 38.56) 49 52.29 (46.28, 59.08)

Note. CI = confidence interval.