Table 1 |
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|
Parasitological data at enrolment |
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| Age |
N |
Asexual parasite prevalence, % (n)¥ |
Asexual parasite density, mean (IQR)† |
Gametocyte prevalence % (n)¶ |
Gametocyte density mean (IQR)‡ |
|
|
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| <5 years |
65 |
73.8 (48) |
2302.4 (530–14149) |
33.8 (22) |
25.3 (16–32) |
| 5–9 years |
211 |
50.2 (106) |
357.8 (120–1040) |
10.4 (22) |
27.9 (16–32) |
| 10–16 years |
250 |
30.4 (76) |
202.7 (80–440) |
5.2 (13) |
18.8 (16–23) |
| Total |
526 |
43.7 (230) |
444.8 (120–1220) |
10.8 (57) |
24.5 (16–32) |
|
|
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|
IQR = interquartile range ¥ Cochran-Armitage test for age-dependent trend in prevalence of asexual parasites (Z = -6.75, P < 0.001). † Geometric mean of parasite carriers only (parasites/μl). Linear regression for log-transformed asexual parasite density and age groups, β = -1.155; se(β) = 0.147, P < 0.001. ¶ Cochran-Armitage test for age-dependent trend in prevalence of gametocytes (Z = -5.91, P < 0.001). ‡ Geometric mean of gametocyte carriers only (parasites/μl). Linear regression for log-transformed gametocyte density and age groups, β = -0.123; se(β) = 0.166, P = 0.46. |
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|
Bousema et al. Malaria Journal 2004 3:18 doi:10.1186/1475-2875-3-18 |
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