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Table 2 Univariable analyses showing significant indicators and unadjusted odds ratios of dengue positive patients compared to non-dengue patients identified in the passive surveillance in Medellin

From: Epidemiology and genetic diversity of circulating dengue viruses in Medellin, Colombia: a fever surveillance study

Characteristics Dengue positive vs. Non-dengue patients
OR 95% CI p-Value
Female (ref. male) 0.95 0.65–1.39 0.795
Age (years)    0.867
 1–4 Ref  
 5–9 0.94 0.52–1.71  
 10–24 1.79 0.65–1.90  
 25–45 2.00 0.72–2.34  
 45–65 1.62 0.55–1.92  
Treated at IPD (ref. OPD) 2.57 1.05–6.29 0.040
No/unknown yellow fever vaccination (ref. vaccinated) 1.67 1.14–2.46 0.009
Fever duration prior to visit    0.002
 1–2 days Ref  
 3–4 days 0.69 0.44–1.09  
 5–7 days 1.60 0.99–2.58  
Clinical diagnosis    0.176
 Undifferentiated fever Ref  
 Suspected dengue 1.82 0.57–5.83  
 Non-dengue 3.40 0.75–15.37  
Temperature ≥ 38.0°c at presentation (ref. <  38.0°c) 0.79 0.52–1.22 0.287