Table 1.
Demographic characteristics by influenza type
| Influenza A | Influenza B | Influenza A and/or B | |
|---|---|---|---|
| N = 1464 | N = 376 | N = 1839 | |
| Age group, years, n (%)a | |||
| < 2 | 448 (30.6) | 120 (31.9) | 567 (30.8)b |
| 2–4 | 123 (8.4) | 47 (12.5) | 170 (9.2) |
| 5–19 | 170 (11.6) | 113 (30.1) | 283 (15.4) |
| 20–39 | 274 (18.7) | 39 (10.4) | 313 (17.0) |
| 40–59 | 254 (17.3) | 37 (9.8) | 291 (15.8) |
| ≥ 60 | 180 (12.3) | 10 (2.7) | 190 (10.3) |
| Unspecified | 15 (1.0) | 10 (2.7) | 25 (1.4) |
| Gender, n (%)a | |||
| Male | 712 (48.6) | 193 (51.3) | 905 (49.2) |
| Female | 727 (49.7) | 183 (48.7) | 909 (49.4)b |
| Unspecified | 25 (1.7) | 0 (0.0) | 25 (1.4) |
| Region, n (%)a | |||
| West | 345 (23.6) | 82 (21.8) | 427 (23.2) |
| Central | 244 (16.7) | 64 (17.0) | 308 (16.7) |
| Panama City | 805 (55.0) | 201 (53.5) | 1006 (54.7) |
| Northeast | 48 (3.3) | 12 (3.2) | 59 (3.2)b |
| Unspecified | 22 (1.5) | 17 (4.5) | 39 (2.1) |
Region: West: Bocas del Toro, Chiriquí and Comarca Ngäbe-Buglé; Central: Coclé, Herrera, Los Santos and Veraguas; Panama City: Panamá Este, Panamá Oeste, Panamá Metro and San Miguelito; Northeast: Colón, Darien and Guna Yala
a% = (n/N) × 100, N = Number of influenza-positive samples, and n = number of positive specimens in a given category
bOne specimen sample was positive for both influenza A and B