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Table 4 Correlates of cross-border malaria reported in Roraima and originating from Venezuela and Guyana, 2016–2018

From: Cross-border malaria in Northern Brazil

Variable name Odds ratio Lower 95% CI Upper 95% CI P-value
Intercept 0.07 0.05 0.09 < 0.001
Nationality (Ref. = Brazilian)
 Guyanese 49.03 7.95 302.20 < 0.001
 Venezuelan 233.76 109.41 499.43  
Type of cross-border (Ref. = Transnational)
 Border 0.56 0.50 0.62 < 0.001
Sex (Ref. Female)
 Male 0.90 0.82 0.97 0.010
Age group (Ref. ≤ 5 years)
 5 to 15 0.57 0.46 0.71 < 0.001
 16 to 24 2.28 1.89 2.75 < 0.001
 25 to 40 2.63 2.20 3.16 < 0.001
 41 to 64 1.78 1.47 2.15 < 0.001
 65+  0.67 0.46 0.98 0.038
Occupation (Ref. = Other)
 Agriculture 0.22 0.19 0.25 < 0.001
 Domestic 0.58 0.48 0.71 < 0.001
 Forestry 2.66 1.95 3.62 < 0.001
 Hunting/Fishing 0.10 0.06 0.16 < 0.001
 Mining 55.76 50.59 61.46 < 0.001
 Tourism 4.60 3.50 6.04 < 0.001
  Traveling 1.62 1.37 1.92 < 0.001
Parasite (Ref. = Mixed/Other)
 P. falciparum 0.93 0.73 1.19 < 0.560
 P. vivax 0.18 0.15 0.22 < 0.001
Interaction terms
 Guyana:Border 0.74 0.09 6.25 0.783
  Venezuela:Border 9.48 3.68 24.43 < 0.001
Detection type (Ref. = active)
 Passive 5.30 4.24 6.61 < 0.001