Table 1.
Estimated mean annual numbers and rates of severe acute respiratory illness and influenza‐associated severe acute respiratory illness hospitalizations, Zambia, 2011‐2014
| Age‐group (in years) | SARI hospitalizations | Influenza‐associated SARI hospitalizations | ||
|---|---|---|---|---|
| Number (95% CI) | Rate (95% CI)a | Number (95% CI) | Rate (95% CI)a | |
| <1 | 57,449 (34,642‐80,256) | 11,548.3 (6,963.6‐16,133) | 2,494 (1,504‐3,484) | 484.4 (292.3‐680.5) |
| 1‐4 | 37,775 (22,136‐53,414) | 1,898.4 (1,112.5‐2,684.3) | 2,175 (1,275‐3,075) | 109.3 (64.0‐154.6) |
| 5‐24 | 6,525 (4,626‐8,424) | 95.2 (67.5‐122.9) | 406 (288‐524) | 5.9 (4.2‐7.6) |
| 25‐44 | 9,708 (6,737‐12,679) | 297.8 (206.7‐388.9) | 610 (423‐797) | 18.7 (13‐24.4) |
| 45‐64 | 4,211 (3,045‐5,377) | 385.8 (278.9‐492.7) | 283 (205‐361) | 25.9 (18.7‐33.1) |
| ≥65 | 3,000 (2,106‐3,894) | 794.3 (557.6‐1,031.0) | 214 (150‐278) | 56.5 (39.7‐73.3) |
| <5 | 95,223 (67,037‐123,409) | 3,828.4 (2,695.2‐4,961.6) | 4,669 (3,287‐6,051) | 187.7 (132.1‐243.3) |
| ≥5 | 23,444 (16,083‐30,805) | 202.5 (138.9‐266.1) | 1,512 (1,037‐1,987) | 13.1 (9.0‐17.2) |
| All | 118,668 (82,948‐154,386) | 843.6 (589.7‐1,097.5) | 6,181 (4,321‐8,041) | 43.9 (30.7‐57.1) |
| Province | ||||
| Central | 10,148 (7,215‐13,081) | 727.8 (517.5‐938.1) | 529 (376‐682) | 38.1 (27.3‐49.2) |
| Copperbelt | 20,450 (13,988‐26,912) | 981.6 (671.4‐1,291.8) | 1,066 (729‐1,403) | 51.2 (35.0‐67.4) |
| Eastern | 15,328 (10,837‐19,819) | 902.2 (637.9‐1,166.5) | 800 (566‐1,034) | 47.1 (33.3‐60.9) |
| Luapula | 7,725 (5,098‐10,352) | 731.9 (483.1‐980.7) | 402 (265‐539) | 38.1 (25.1‐51.1) |
| Lusaka | 21,843 (15,421‐28,265) | 889.7 (628.1‐1,151.3) | 1,132 (799‐1,465) | 46.1 (32.5‐59.7) |
| Muchinga | 5,949 (4,123‐7,775) | 774 (536.4‐1,011.6) | 310 (215‐405) | 40.4 (28.0‐52.8) |
| North Western | 7,439 (5,334‐9,544) | 968.7 (694.6‐1,242.8) | 388 (278‐498) | 50.6 (36.3‐64.9) |
| Northern | 8,296 (5,674‐10,918) | 692.9 (473.9‐911.9) | 432 (295‐569) | 36.1 (24.7‐47.5) |
| Southern | 13,709 (9,624‐17,794) | 804.3 (564.6‐1,044) | 715 (502‐928) | 42.0 (29.5‐54.5) |
| Western | 7,781 (5,602‐9,960) | 826 (594.7‐1,057.3) | 407 (293‐521) | 43.2 (31.1‐55.3) |
SARI, severe acute respiratory illness; CI, confidence intervals.
a
Rates expressed per 100,000 population.