Table 4. Severe acute respiratory infection incidence rates, by participating site and age group.
| 18–49 years old | 50–64 years old | 65+ years old | All Adults | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Case | Person-years | Rate per 100,000 (LCL-UCL) | Case | Person-years | Rate per 100,000 (LCL-UCL) | Case | Person-years | Rate per 100,000 (LCL-UCL) | Case | Person-years | Rate per 100,000 (LCL-UCL) | |
| Bangladesha | 226 | 2,441,487 | 9 (5–18) | 132 | 420,740 | 31 (22–45) | 116 | 218,507 | 53 (41–69) | 474 | 3,080,734 | 15 (9–25) |
| China | 414 | 1,129,980 | 37 (27–51) | 78 | 202,596 | 39 (28–53) | 45 | 85,225 | 53 (40–69) | 537 | 1,417,801 | 38 (28–52) |
| Egypt1 | 271 | 102,251 | 265 (235–299) | 170 | 24,069 | 706 (656–760) | 51 | 6,542 | 780 (727–836) | 492 | 132,862 | 370 (334–410) |
| Guatemalab | 65 | 567,486 | 11 (6–20) | 41 | 105,132 | 39 (28–53) | 62 | 71,172 | 87 (71–107) | 168 | 743,790 | 23 (15–34) |
| Kenyac | 48 | 16,143 | 297 (265–333) | 20 | 3,327 | 601 (555–651) | 18 | 2,906 | 620 (573–670) | 86 | 22,376 | 384 (348–425) |
| Thailandd | 112 | 236,434 | 47(36–63) | 135 | 73,343 | 184 (159–213) | 215 | 37,879 | 568 (523–616) | 462 | 347,656 | 133 (112–158) |
a In Bangladesh and Egypt, population data was available only for 20–49 years of age and rates were calculated using SARI Patient patients 20 and older.
b Restricted to Santa Rose and Quetzaltenango study sites.
c SARI Patients and population data restricted to Karemo region for Siaya District Hospital and population based infectious disease surveillance area for Lwak Mission Hospital.
d Thailand incidence calculations included SARI patients that were eligible for study enrollment but did not consent for study participation.