Table 2 Asymptomatic parasite carriers by parasite density (microscopy) and age group comparing rain and dry season
% asymptomatic carriers/total carriers | 1-1,000 parasites/μl | 1,000-2,500 parasites/μl | 2,500-5,000 parasites/μl | 5,000-10,000 parasites/μl | > 10,000 parasites/μl | |
|---|---|---|---|---|---|---|
Rainy season | ||||||
0-4 years | 68.1 (64/94) | 80.6 (25/31) | 61.5 (8/13) | 75.0 (9/12) | 76.5 (13/17) | 42.9 (9/21) |
(% asymptomatic carriers/total carriers) | ||||||
5-14 years | 72.6 (170/234) | 75.9 (101/133) | 80.5 (33/41) | 69.0 (20/29) | 55.6 (10/18) | 46.2 (6/13) |
(% asymptomatic carriers/total carriers) | ||||||
15-44 years | 86.4 (108/125) | 86.8 (92/106) | 81.8 (9/11) | 100 (4/4) | (3/3) | (0/1) |
(% asymptomatic carriers/total carriers) | ||||||
>45 years | 86.2 (25/29) | 84.6 (22/26) | (2/2) | (0/0) | (0/0) | (1/1) |
(% asymptomatic carriers/total carriers) | ||||||
All | 76.1 (367/482) | 81.1 (240/296) | 77.6 (52/67) | 73.3 (33/45) | 68.4 (26/38) | 44.4 (16/36) |
(% asymptomatic carriers/total carriers) | ||||||
Dry season | ||||||
0-4 years | 92.5 (49/53) | 90.9 (40/44) | (2/2) | 100 (4/4) | (2/2) | (1/1) |
(% asymptomatic carriers/total carriers) | ||||||
5-14 years | 93.2 (136/146) | 94.0 (109/116) | 100 (17/17) | 83.3 (5/6) | 100 (4/4) | (1/3) |
(% asymptomatic carriers/total carriers) | ||||||
15-44 years | 96.3 (52/54) | 96.0 (48/50) | (3/3) | (1/1) | (0/0) | (0/0) |
(% asymptomatic carriers/total carriers) | ||||||
>45 years | 100 (16/16) | 100 (15/15) | (1/1) | (0/0) | (0/0) | (0/0) |
(% asymptomatic carriers/total carriers) | ||||||
All | 94.1 (253/269) | 94.2 (212/225) | 100 (23/23) | 90.9 (10/11) | 100 (6/6) | 50 (2/4) |
(% asymptomatic carriers/total carriers) |