|
Variable
|
Categories
|
Parasitaemia n (%)
|
Univariate analysis
|
Multivariate analysis
|
|---|
|
RR (95% CI)
|
p-value
|
aRRa (95% CI)
|
p-value
|
|---|
|
Wealth index categories
|
Least poor
|
98 (40.2)
|
Reference
|
–
|
Reference
|
–
|
|
Middle
|
133 (52.8)
|
1.31 (1.08–1.59)
|
0.005
|
1.15 (0.95–1.39)
|
0.15
|
|
Poorest
|
154 (59.9)
|
1.49 (1.24–1.79)
|
< 0.001
|
1.29 (1.07–1.55)
|
0.008
|
|
Type of house constructionb
|
Modern
|
61 (35.5)
|
Reference
|
–
|
Reference
|
–
|
|
Traditional
|
324 (55.8)
|
1.57 (1.27–1.95)
|
< 0.001
|
1.41 (1.14–1.74)
|
0.002
|
|
Whether airbricks were present
|
Present
|
79 (37.8)
|
Reference
|
–
|
Reference
|
–
|
|
Not present
|
306 (56.3)
|
1.49 (1.23–1.80)
|
< 0.001
|
1.09 (0.86–1.39)
|
0.48
|
|
Number of windows present
|
≥ 2 windows
|
65 (45.1)
|
Reference
|
–
|
Reference
|
–
|
|
1 window
|
224 (50.1)
|
1.11 (0.91–1.36)
|
0.31
|
0.97 (0.79–1.18)
|
0.73
|
|
No windows
|
96 (59.3)
|
1.31 (1.05–1.64)
|
0.02
|
1.06 (0.84–1.32)
|
0.63
|
|
Level of education
|
O level or beyond
|
86 (46.2)
|
Reference
|
–
|
Reference
|
–
|
|
None or primary
|
299 (52.7)
|
1.14 (0.96–1.36)
|
0.14
|
1.13 (0.95–1.34)
|
0.17
|
|
Bed net ownership before enrolment
|
LLIN
|
285 (49.2)
|
Reference
|
–
|
Reference
|
–
|
|
Untreated
|
62 (56.9)
|
1.16 (0.96–1.39)
|
0.12
|
1.07 (0.90–1.28)
|
0.45
|
|
No bed net
|
38 (58.5)
|
1.19 (0.95–1.48)
|
0.13
|
1.03 (0.83–1.28)
|
0.77
|
|
Categories of gravidity
|
Multigravida
|
145 (38.0)
|
Reference
|
–
|
Reference
|
–
|
|
Secundigravida
|
108 (57.8)
|
1.52 (1.27–1.82)
|
< 0.001
|
1.53 (1.28–1.82)
|
< 0.001
|
|
Primigravida
|
132 (71.7)
|
1.89 (1.62–2.21)
|
< 0.001
|
1.84 (1.58–2.16)
|
< 0.001
|
- RR risk ratio
- aAdjusted for wealth index, type of house construction, level of education, bed net ownership before enrolment and categories of gravidity
- bModern houses defined as those with plaster or cement walls, metal or wooden roof, and closed eaves; all other houses defined as traditional
