TABLE 1.
Ngerenya 1998 and 2002 cohort characteristics, according to age, parasitemic status, and gender at the time of cross-sectional bleed
| Cohort |
Characteristics (P. falciparum) |
All |
Age group, yr |
Pa |
||
|---|---|---|---|---|---|---|
| 2–5 (n = 43) |
6–14 (n = 57) |
18–81 (n = 50) |
||||
| Ngerenya 1998 | Positive no. (%) | 59 (39.3) | 13 (30.2) | 34 (59.7) | 12 (24.0) | 0.001 |
| Densityb | 682 (225–1827) | 3712 (1151–12,354) | 762 (225–1452) | 255 (180–380) | 0.002 | |
| No. of males (%)c | 69 (46.0) | 23 (53.5) | 34 (60.0) | 12 (24.0) | 0.001 | |
| 1–4 (n = 131) |
5–8 (n = 106) |
|||||
| Ngerenya 2002 | Positive no. (%) | 16 (6.9)d | 7 (5.4) | 9 (8.6) | – | 0.347 |
| Densityb | 460 (180–1900) | 1640 (120–3560) | 320 (200–880) | – | 0.458 | |
| No. of males (%)c | 132 (55.7) | 66 (50.4) | 66 (62.3) | – | 0.087 | |
a
P values calculated using a χ2 test or Kruskal-Wallis test.
b
Parasites/microliter, median (25–75th percentiles), among individuals who were parasite positive.
c
No difference in rate of parasitemia was found for males compared with females within the Ngerenya 1998 or 2002 cohorts (P > 0.436).
d
n was 234 vs. 237 for parasitemic status, as a result of missing data.