Predictive factors
|
Category
|
PCR positive [n (%)]
|
Univariate
|
P value1
|
Multivariate
|
P value2
|
---|
OR (95% CI)
|
AOR (95% CI)
|
---|
Individual level
|
Gender
|
Male
|
153 (30.7)
|
1.73 (1.37, 2.20)
|
< 0.001
|
1.51 (1.16, 1.97)
|
0.002
|
Female
|
240 (20.3)
|
1
| |
1
| |
Age groups (years)
|
≤ 15
|
135 (33.3)
|
1.96 (1.53, 2.51)
|
< 0.001
|
1.49 (1.13, 1.96)
|
0.004
|
> 15
|
258 (20.3)
|
1
| |
1
| |
Bed net use
|
No
|
326 (35.6)
|
5.73 (4.31, 7.62)
|
< 0.001
|
5.49 (4.12, 7.32)
|
< 0.001
|
Yes
|
67 (87.8)
|
1
| |
1
| |
Household level
|
Major material of house
|
Wood/bamboo
|
371 (37.0)
|
1.55 (0.96, 2.48)
|
0.072
|
1.90 (1.15, 3.14)
|
0.012
|
Brick
|
22 (30.1)
|
1
| |
1
| |
Use of IRS
|
No
|
337 (48.5)
|
3.44 (2.54, 4.66)
|
< 0.001
|
3.40 (2.50, 4.65)
|
< 0.001
|
Yes
|
56 (14.7)
|
1
| |
1
| |
Elevation of house (m)
|
≤ 312
|
250 (45.0)
|
1.82 (1.45, 2.30)
|
< 0.001
|
1.11 (0.83, 1.49)
|
0.490
|
> 312
|
143 (27.5)
|
1
| |
1
| |
Distance to the nearest clinic (m)
|
> 180
|
257 (54.9)
|
2.49 (1.97, 3.15)
|
< 0.001
|
2.05 (1.53, 2.75)
|
< 0.001
|
≤ 180
|
136 (22.4)
|
1
| |
1
| |
Distance to the nearest road (m)
|
≤ 15
|
277 (48.2)
|
1.55 (1.22, 1.98)
|
< 0.001
|
1.20 (0.92, 1.57)
|
0.189
|
> 15
|
116 (23.2)
|
1
| |
1
| |
- PCR polymerase chain reaction, OR odds ratio, AOR adjusted odds ratio, CI confidence interval, IRS indoor residual spraying
- 1P value was determined in a univariate logistic regression model
- 2P value was assessed in the multivariate mixed effects logistic regression model—variables with P values < 0.25 in the unadjusted analysis were considered