Table 1. Demographics in patients with suspected CHIKV infection.
| IgG or IgM for CHIKV | ||||
|---|---|---|---|---|
|
Positivea
(n = 295) |
Negativeb
(n = 253) |
OR (CI) | p-value | |
| Age in years (mean ± SD) | 49.6 ± 17.4 | 48.9 ± 17.6 | ||
| Female | 208 (54.5%) | 174 (45.5%) | ||
| Race | ||||
| Mestizo (n: 292) | 145 (49.7%) | 147 (50.3%) | ||
| Caucasian (n: 188) | 110 (58.5%) | 78 (41.5%) | ||
| Afro-American (n: 41) | 29 (70.7%) | 12 (29.3%) | 2.19 (1.09–4.38) | 0.024 |
| Amerindian (n: 24) | 8 (33.3%) | 16 (66.7%) | 0.41 (0.17–0.98) | 0.039 |
| Origin | ||||
| Barranquilla (n: 248) | 165 (66.5%) | 83 (33.5%) | 2.60 (1.83–3.68) | <0.001 |
| Bogotá (n: 90) | 45 (50.0%) | 45 (50.0%) | ||
| Medellín (n: 84) | 18 (21.4%) | 66 (78.6%) | 0.18 (0.10–0.32) | <0.001 |
| Cúcuta (n: 55) | 36 (65.5%) | 19 (34.5%) | ||
| Bucaramanga (n: 47) | 14 (29.8%) | 33 (70.2%) | 0.33 (0.17–0.63) | 0.001 |
| Cali (n: 24) | 17 (70.8%) | 7 (29.2%) | ||
| Monthly income | ||||
| None (n: 199) | 107 (53.8%) | 92 (46.2%) | ||
| <157 USD (n: 90) | 62 (68.9%) | 28 (31.1%) | 2.13 (1.32–3.46) | 0.002 |
| 158–315 USD (n: 189) | 95 (50.3%) | 94 (49.7) | ||
| 316–471 USD (n: 41) | 16 (39.0%) | 25 (61.0%) | ||
| 472–630 USD (n: 15) | 9 (60.0%) | 6 (40.0%) | ||
| 631–725 USD (n: 3) | 2 (66.7%) | 1 (33.3%) | ||
| 726–906 USD (n: 7) | 3 (42.9%) | 4 (57.1%) | ||
| >906 USD (n: 4) | 1 (25.0%) | 3 (75.0%) | ||
| Socioeconomic strata | ||||
| Stratum 1 (n: 169) | 115 (68.0%) | 54 (32.0%) | 2.35 (1.60–3.44) | <0.001 |
| Stratum 2 (n: 226) | 104 (46.0%) | 122 (54.0%) | 0.58 (0.41–0.82) | 0.002 |
| Stratum 3 (n: 114) | 60 (52.6%) | 54 (47.4%) | ||
| Stratum 4 (n: 32) | 9 (28.1%) | 23 (71.9%) | 0.31 (0.14–0.69) | 0.003 |
| Stratum 5 (n: 7) | 6 (85.7%) | 1 (14.3%) | ||
CHIKV: chikungunya virus; IgM: immunoglobulin M; IgG: immunoglobulin G; OR: odds ratio; CI: 95% confidence interval; SD: standard deviation, USD: United States dollar.
afulfilled World Health Organization Criteria for confirmed case of CHIKV; bdid not fulfil World Health Organization Criteria for confirmed case of CHIKV.