Table 1.
Absolute Neutrophil Counts Reported for Various Populations of East, West, and Southern Africans.
| Population | Year | Number of Patients | Absolute Neutrophil Count, Median (109/L) |
|---|---|---|---|
| Eastern Africa | |||
| Rural Tanzania and Kenya, healthy adult outpatients living at5 | |||
| Sea level | 1958 | 60 | 2.61 (SE: 0.12) |
| 3700 feet elevation | 221 | 2.18 (SE: 0.07) | |
| 6800 feet elevation | 97 | 2.39 (SE: 0.10) | |
| Urban Uganda, healthy adult students6 | 1961 | 160 | 2.10 (SD: 0.55–3.7) |
| Urban Kenya, healthy adult blood donors7 | 1969 | 152 | 2.11 (R: 2.00–10.7) |
| Rural Kenya, adult outpatients living at8 | |||
| Sea level | 1969 | 103 | 2.60 (95% CI: 1.05–5.40) |
| 1800 feet elevation | 96 | 2.41 (95% CI: 0.86–5.65) | |
| 6800 feet elevation | 89 | 2.90 (95% CI: 0.99–6.65) | |
| Urban Uganda, healthy adult blood donors9 | 1971 | 250 | 1.96 (95% CI: 0.32–3.60) |
| Rural Uganda, healthy HIV-negative adults10 | |||
| Age 19–24 years | 2002 | 235 | 1.80 (90% RI: 1.00–3.50) |
| Age >24 years | 845 | 1.80 (90% RI: 0.84–3.37) | |
| Rural Western Kenya, population-based adults (13–34 years)11 | |||
| Female, 13–17 years | 2003–2005 | 57 | 2.0 (95% CI: 1.0–6.2) |
| Male, 13–17 years | 76 | 1.9 (95% CI: 0.8–5.0) | |
| Female, 18–34 years | 83 | 2.3 (95% CI: 1.3–5.4) | |
| Male, 18–34 years | 77 | 2.0 (95% CI: 0.8–3.9) | |
| Western Africa | |||
| Zaria, Nigeria, HIV-infected adults screening visit for HAART11 | 2004 | 400 | 3.20 (R: 6.90–15.60) |
| Nigeria, previously antiretroviral naive HIV-infected adults12 | 2005 | 100 | 2.32 (R: 0.00–5.48) |
| Abidjan, Côte d’Ivoire, healthy HIV-infected taking zidovudine-containing HAART15 | 2005 | 504 | 1.65 (IQR: 1.22–2.26) |
| Southern Africa | |||
| Zambia, healthy adult blood donors13 | 1972 | 255 | 1.91 (R: 0.71–3.11) |
| Zimbabwe, HIV-negative pregnant women14 | 2002 | 998 | 5.30 (R: 0.30–21.30) |
Abbreviations: HAART, highly active antiretroviral therapy; SE, standard error; SD, standard deviation; R, range; IQR, interquartile range; 95% CI, confidence interval; 90% RI, 90% reference interval.