Table 2 Clinical and laboratory factors associated with dengue fever, relative to leptospirosis

Positive tourniquet test

1.4 (0.9–2.3)

0.156

1.4 (0.7–2.9)

0.354

Thrombocytopenia

6.2 (1.6–24.3)

0.001

10.0 (2.2–45.8)

0.003

Leukopenia

3.8 (2.4–6.0)

<0.001

9.4 (3.7–23.8)

<0.001

Orthostatic hypotension

3.0 (0.8–11.5)

0.055

3.4 (0.7–15.9)

0.117

Rash

3.1 (1.5–6.5)

<0.001

5.8 (2.1–15.7)

0.001

Facial erythema

3.8 (1.8–8.0)

<0.001

7.3 (2.8–19.3)

<0.001

Conjunctival injection

1.9 (1.1–3.4)

0.023

3.0 (1.3–7.1)

0.012

Diarrhea

1.6 (0.9–2.9)

0.092

1.9 (0.8–4.4)

0.125

Dizziness

0.5 (0.2–0.9)

0.020

0.4 (0.2–1.0)

0.047

Hepatomegaly

0.3 (0.2–0.5)

0.003

0.1 (0.01–1.4)

0.093

Sore throat

0.5 (0.3–0.8)

0.006

0.3 (0.1–0.7)

0.004