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Table 1 Clinical and epidemiological characteristics of 632 suspected dengue cases according to laboratory confirmation, recruited in Central Brazil, 2012 and 2013

From: Dengue-specific serotype related to clinical severity during the 2012/2013 epidemic in centre of Brazil

Characteristics

Laboratory confirmeda dengue cases (%)

Unconfirmed dengue cases (%)

P b

Suspected cases dengue

452 (71.5)

180 (28.5)

Mean age (dp)

35.7 (17.5)

34.8 (16.6)

0.546

Age group (years)

  ≤ 1

2 (0.4)

3 (1.7)

0.288

 2–15

48 (10.6)

15 (8.3)

0.371

 16–39

233 (51.5)

100 (55.6)

0.320

 40–59

118 (26.1)

44 (24.4)

0.629

  ≥ 60

51 (11.3)

18 (10.0)

0.619

Gender

 Female

235 (52.0)

88 (48.9)

0.481

 Male

217 (48.0)

92 (51.1)

0.481

Health care settingc

 Ambulatory

340 (75.2)

126 (70.0)

0.178

 Hospital

112 (24.8)

54 (30.0)

0.178

Previous medical visit

142 (31.4)

64 (31.9)

0.316

Comorbidityd

115 (25.4)

48 (29.4)

0.751

 Hypertension

82 (18.1)

30 (16.7)

0.661

 Diabetes

25 (5.5)

11 (6.1)

0.776

 Asthma

14 (3.1)

8 (4.4)

0.404

 Chronic renal failure

8 (1.8)

2 (1.1)

0.549

 Othersc

15 (3.3)

11 (7.2)

0.669

Deaths

1 (0.2)

1 (0.6)

0.487

  1. alaboratory confirmed dengue cases were positive by at least one of the test (RT-PCR and/or NS1 and/or IgM).
  2. b χ 2 test
  3. cconsidering 540 adult patient (≥ 18 years).
  4. dlupus erythematosus; cancer; AIDS; transplantation and hepatitis B or C