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Table 3 Factors associated with testing positive for malaria during reactive case detection

From: Location, location, location: environmental factors better predict malaria-positive individuals during reactive case detection than index case demographics in Southern Province, Zambia

Factor Categorization Unadjusted OR (95% CI) Adjusted OR (95% CI)
Age >15 years Reference Reference
5–15 years 1.768*** (1.524–2.053) 1.739*** (1.490–2.031)
<5 years 1.069 (0.884–1.293) 0.936 (0.768–1.140)
Travel No travel in previous 2 weeks Reference Reference
Travelled in previous 2 weeks 1.741*** (1.337–2.266) 1.927*** (1.464–2.536)
Gender Female Reference Reference
Male 1.287*** (1.128–1.469) 1.272** (1.108–1.459)
Season During dry season Reference Reference
During rainy season 1.403** (1.149–1.714) 1.435** (1.168–1.762)
House location Beyond nearest neighbours Reference Reference
Index house 3.059*** (2.147–4.359) 2.992*** (2.076–4.312)
Nearest neighbour (5 houses) 2.065*** (1.465–2.911) 2.033*** (1.426–2.897)
Symptoms No fever Reference Reference
Fever 4.536*** (3.757–5.475) 4.661*** (3.840–5.657)
  1. N = 14,049 individuals, 859 cases
  2. CI confidence interval, OR odds ratio
  3. *p < 0.05 **p < 0.01 ***p < 0.001