Table 4. Crude and adjusted incidence rates of NTS bacteremia among rural and urban populations of Kenya, 2006–2009.
| AgeIn years | Site | NTS(n) | Pyo* | Crude Rate per 100,000 Pyo(95% CI) | Rate Extrapolation 1** per 100,000 Pyo(95% CI) | Rate Extrapolation 2*** per 100,000 Pyo(95% CI) |
| 0–4 | Rural | 28 | 13,572 | 206 (138–298) | 759 (542–916) | 2085 (1181–2990) |
| Urban | 5 | 9,595 | 52 (17–122) | 208 (95–322) | 260 (102–419) | |
| 5–9 | Rural | 6 | 11,312 | 53 (19–115) | 150 (82–218) | 389 (106–672) |
| Urban | 1 | 8,049 | 12 (0.12–92) | 25 (5–44) | 37 (1–73) | |
| 10–17 | Rural | 1 | 16,756 | 6.0 (0.18–33) | 18 (0–43) | 24 (0–62) |
| Urban | 0 | 8,017 | 0 (0–46) | 0 (NA) | 0 (NA) | |
| 18–49 | Rural | 19 | 25,015 | 76 (46–119) | 155 (106–206) | 367 (186–550) |
| Urban | 1 | 26,752 | 3.7 (0.15–27) | 7.5 (0–18) | 11.2 (0–31) | |
| >50 | Rural | 6 | 10362 | 58 (21–126) | 145 (86–204) | 232 (112–351) |
| Urban | 0 | 2,120 | 0 (0–174) | 0 (NA) | 0 (NA) | |
| Overall | Rural | 60 | 77,017 | 78 (59–100) | 230 (142–317) | 580 (229–934) |
| Urban | 7 | 54,535 | 13 (5–26) | 44 (0–89) | 57 (0–122) |
*Pyo = person-years of observation.
**Extrapolated for patients meeting indication for blood culture who were not cultured in the clinic.
***Extrapolated for patients meeting indication for blood culture who were not cultured in the clinic and those with same illness syndromes at the home visit who sought care at area clinics besides Lwak and Tabitha clinics.