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Table 1 Expected sample sizes and samples size achieved per zoba

From: A steep decline of malaria morbidity and mortality trends in Eritrea between 2000 and 2004: the effect of combination of control methods

Zone (Zoba) Number of households Sick children under five years Pregnant women
Minimum sample size expected Sample size reached Minimum sample size expected Sample size reached
Anseba 380 71 72 64
Debub 380 48 72 61
Gash-Barka 380 42 72 55
Northern Red Sea 380 35 72 58
TOTAL 1520 196 288 238