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Table 2 Prevalence, attack rate, and distribution by sex and age of patients positive for DENV, CHIKV, and ZIKV

From: Co-circulation and simultaneous co-infection of dengue, chikungunya, and zika viruses in patients with febrile syndrome at the Colombian-Venezuelan border

  DENV (N = 33) CHIKV (N = 47) ZIKV (N = 29) p
Male % (N) 27.3 (9) 40.4 (19) 13.8 (4) n/a
Female % (N) 72.7 (24) 59.6 (28) 86.2 (25) n/a
Age, Years (Mean ± SEM) 21.1 ± 2.0 21.1 ± 2.3 29.7 ± 2.1* 0.006a*
Year (s)
 0–10 24.2 (8) 38.3 (18) 0 (0) 0.200b
 11–20 24.2 (8) 14.9 (7) 20.7 (6) 0.366a
 21–30 33.3 (11) 19.1 (9) 37.9 (11) 0.666a
 31–40 12.1 (4) 10.6 (5) 24.1 (7) 0.838a
 41–50 3.0 (1) 10.6 (5) 6.9 (2) 0.505c
 Older than 50 3.0 (1) 6.4 (3) 10.3 (3) 0.337c
Laboratory diagnosis
 Prevalence % (95% CI) 21.0 (14.6–27.4) 29.9 (22.8–37.1%) 18.5 (12.4–24.5) 0.462 d
 Attack rate × 100,000 Inhabitants 40.9 × 105 58.4 × 105 36.0 × 105 n/a
  1. *p < 0.05 = statistically significant
  2. aKruskal-Wallis test
  3. b Unpaired t-test
  4. c One-way ANOVA
  5. d Chi-squared (Χ 2 )