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Table 6 Summary of comparison of malaria prevalence around some African dams using data from the literature and the MAP database

From: Malaria impact of large dams in sub-Saharan Africa: maps, estimates and predictions

Malaria stability Documented impact from literature (range) Documented impact from MAP (range)
Malaria prevalence <3 km Malaria prevalence >3 km Odds ratio Malaria prevalence <3 km Malaria prevalence >3 km Odds ratio
Unstable 4.2–36.1 % 1.5–25 % 2.3–19.9a 6.3–41.5 0.4–28 % 3.6–24.5a
Stable 22.0–32.3 % 17.3–29.2 1.2–1.4 28.8–52 % 25.6–62 % 1.1–1.8
  1. MAP Malaria Atlas Project
  2. aThe malaria prevalence difference between dam and non-dam villages was significant (Chi square test, P < 0.05)