Table 1 Prevalence of malaria infection in relation to demographic and clinical characteristics based on malaria rapid diagnostic test and microscopic examination
Variables | Number | Malaria infection by malaria rapid diagnostic test | Number | Malaria infection by microscopy | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Yes n (%) | No n (%) | Chi-square test | P-value | Yes n (%) | No n (%) | Chi-square test | P-value | |||
Age groups (years) | ||||||||||
 1–10 | 454 | 102 (22.5) | 352 (77.5) | 52.9345 | 0.001 | 456 | 62 (13.6) | 394 (86.4) | 1.8389 | 0.87 |
 11–20 | 235 | 63 (26.8) | 172 (73.2) | 244 | 40 (16.4) | 204 (83.6) | ||||
 21–30 | 139 | 10 (7.2) | 129 (92.8) | 140 | 22 (15.7) | 118 (84.3) | ||||
 31–40 | 93 | 8 (8.6) | 85 (91.4) | 92 | 12 (13.0) | 80 (86.9) | ||||
 41–51 | 88 | 8 (9.1) | 80 (90.9) | 89 | 11 (12.4) | 78 (87.6) | ||||
 ≥51 | 121 | 8 (6.2) | 121 (93.8) | 130 | 17 (13.1) | 113 (86.9) | ||||
Sex | ||||||||||
 Female | 626 | 92 (14.7) | 534 (85.3) | 7.5939 | 0.01 | 632 | 75 (11.9) | 557 (88.1) | 6.5054 | 0.011 |
 Male | 511 | 107 (20.9) | 404 (79.1) | 519 | 89 (17.2) | 430 (82.9) | ||||
Subvillages | ||||||||||
 Chamwino | 129 | 19 (14.7) | 110 (85.3) | 6.9861 | 0.22 | 129 | 19 (14.7) | 110 (85.3) | 12.2958 | 0.031 |
 Kisiwani | 122 | 23 (18.9) | 99 (81.2) | 123 | 18 (14.6) | 105 (85.4) | ||||
 Kwamtunga | 195 | 19 (9.7) | 176 (90.3) | 197 | 25 (12.7) | 172 (87.2) | ||||
 Makuruwili | 132 | 22 (16.7) | 110 (83.3) | 131 | 32 (24.4) | 99 (75.6) | ||||
 Mlegeni | 109 | 20 (18.4) | 89 (81.7) | 109 | 26 (23.9) | 83 (76.2) | ||||
 Upogoroni | 126 | 18 (14.3) | 108 (85.7) | 126 | 20 (15.9) | 106 (84.1) | ||||
Splenomegaly | ||||||||||
 Absent | 540 | 123 (22.8) | 417 (77.22) | 20.5162 | 0.001 | 551 | 70 (12.7) | 481 (87.3) | 4.0167 | 0.045 |
 Present | 17 | 12 (70.6) | 5 (29.4) | 17 | 5 (29.4) | 12 (70.6) | ||||
Anaemia (g/dl) | ||||||||||
 Not anaemic | 701 | 104 (14.8) | 597 (85.2) | 11.3177 | 0.001 | 707 | 87 (12.3) | 620 (87.7) | 6.3912 | 0.011 |
 Anaemic | 368 | 85 (23.1) | 283 (76.9) | 373 | 67 (17.9) | 306 (82.0) | ||||
Mosquito nets use | ||||||||||
 No | 153 | 33 (21.6) | 120 (78.4) | 1.9592 | 0.16 | 152 | 33 (21.7) | 119 (78.3) | 8.0835 | 0.004 |
 Yes | 980 | 166 (16.9) | 814 (83.1) | 995 | 130 (13.1) | 865 (86.9) | ||||