Skip to main content

Table 4 Annual and monthly variation of malaria and parasitaemia in the BHD from 2011 to 2013

From: The impact of mass distribution of long lasting insecticide-treated bed-nets on the malaria parasite burden in the Buea Health District in South-West Cameroon: a hospital based chart review of patient’s laboratory records

Year January February March April May June July August September October November December Total n.%
2011
 Total tested 465 351 363 526 507 463 447 368 521 547 548 577 5674
 Positive (%) 70 (15.4) 65 (18.5) 90 (24.8) 122 (23.2) 61 (12.0) 76 (16.4) 80 (17.9) 76 (20.7) 67 (12.9) 88 (16.1) 118 (21.5) 126 (21.8) 1039 (18.3)
 95% CI [12.2, 19.1] [14.7, 23.1] [20.5, 29.6] [19.7, 27.1] [9.5, 15.3] [13.2, 20.2] [14.5, 21.8] [16.7, 25.2] [10.2, 16.1] [13.2, 19.5,] [18.2, 25.3] [18.6, 25.5] [17.3–19.3]
 Mean parasitaemia (T/µl) ± STD 1358.7 6358.2 2021.4 3466.9 467.5 2027.3 1987.4 2662.2 2600.5 2562.2 4885.8 1956.4 2645.2 ± 25,240.0
2012
 Total Tested 479 307 458 414 474 428 495 471 455 479 526 329 5415
 Positive (%) 68 (14.2) 57 (18.6) 62 (13.5) 59 (14.3) 75 (15.8) 79 (18.5) 91 (18.4) 63 (13.4) 71 (15.6) 110 (19.0) 125 (23.8) 60 (18.2) 920 (17.0)
 95% CI [11.3, 17.7] [14.7, 23.1] [10.6, 17.1] [11.1, 18.1] [12.7, 19.5] [15.0, 22.5] [15.1, 22.1] [10.5, 16.9] [12.5, 19.3] [15.9, 22.5] [20.2, 27.7] [14.3, 22.9] [16.0–18.0]
 Mean parasitaemia (T/µl) ± STD 1352.5 1423.3 1093.7 1650 1758.8 4965.7 1763 1054.4 2779.6 2391.4 3183.6 3957.4 2257.2 ± 18,118.7
2013
 Total tested 513 450 428 574 657 476 449 419 561 602 574 470 6175
 Positive (%) 138 (26.9) 96 (21.3) 99 (23.1) 141 (24.6) 211 (32.1) 109 (22.9) 131 (29.2) 116 (27.7) 161 (28.7) 143 (23.7) 133 (23.2) 108 (23.0) 1586 (25.7)
 95% CI [23.2, 31.0] [17.7, 25.5] [19.3, 27.5] [21.1, 28.3] [28.6, 35.9] [19.3, 27.0] [25.1, 33.7] [23.5, 32.3] [25.0, 32.7] [20.4, 27.3] [19.8, 26.9] [19.3, 27.1] [24.6–26.8]
 Mean parasitaemia (T/µl) ± STD 4593.2 3027.4 3435.7 4258.4 3919.7 2318.6 2358 3879 3561.5 1480.9 3149.4 2725 3235.2 ± 25,441.2