Table 1.
Demographics, febrile cases, dengue cases, and age-, sex-, and residence-specific attack rates of dengue outbreak in Hadramout in 2010
| Demographic characteristics | Population | Total fever cases reported | IgM+ cases | IgG+ sera (%) | ||
|---|---|---|---|---|---|---|
| Dengue IgM-positive cases (%; N = 630) | Dengue positivity rate (%) among febrile cases by IgM | Attack rate/1,000 | ||||
| Age (years) | ||||||
| < 5 | 107,595 | 37 | 27 (4.3%) | 27/37 (73.0) | 0.25 | 14 (4.4%) |
| 5–14 | 213,773 | 271 | 172 (27.3%) | 172/271 (63.5) | 0.80 | 92 (28.8%) |
| 15–24 | 148,650 | 370 | 235 (37.3%) | 235/370 (63.5) | 1.58* | 114 (35.7%) |
| 25–34 | 89,190 | 199 | 134 (21.3%) | 134/199 (67.3) | 1.50 | 69 (21.6%) |
| 35–54 | 190,414 | 292 | 56 (8.8%) | 56/292 (65.1) | 0.55 | 28 (8.8%) |
| ≥55 | 47,427 | 12 | 6 (1%) | 6/12 (50.0) | 0.13 | 2 (0.6%) |
| Sex | ||||||
| Male | 364,547 | 640 | 408 (64.8%) | 408/640 (63.8) | 1.12* | 197 (61.7%) |
| Female | 343,412 | 342 | 222 (35.2%) | 222/342 (64.9) | 0.65 | 122 (38.3%) |
| Residence | ||||||
| Urban districts | 419,249 | 890 | 579 (91.9%) | 579/890 (65.1) | 1.38* | 273 (85.5%) |
| Rural districts | 288,610 | 92 | 51 (8.1%) | 51/92 (55.4) | 0.18 | 46 (14.5%) |
| Total | 707,859 | 982 | 630 | 630/982 (64.2) | 0.89 | 319 |
*
P < 0.001.