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Table 2 Logistic regression results to assess the risk factors associated with RDT positivity: Individuals < 10 years old

From: Mass testing and treatment for malaria followed by weekly fever screening, testing and treatment in Northern Senegal: feasibility, cost and impact

Covariates N (% of total population < 10 years) n (distribution of RDT-positive population (%) < 10 years) Univariable odds ratio (95% CI) p-value Multivariable adjusted odds ratio (95% CI) p-value
Sociodemographic characteristics
Sex
Female 4136 (50.0%) 60 (43.2%) 1.0 (ref) 1.0 (ref)
Male 4140 (50.0%) 79 (56.8%) 1.32 (0.94–1.85)
p = 0.106
1.31 (0.89–1.94)
p = 0.175
Age
< 5 years 4304 (52.0%) 45 (32.4%) 1.0 (ref) 1.0 (ref)
5–9 years 3972 (48.0%) 94 (67.6%) 2.29 (1.60–3.28)
p < 0.001
2.64 (1.75–3.99)
p < 0.001
Individual malaria risk factors
Used a bed net on previous night
No 2749 (33.2%) 41(29.5%) 1.0 (ref) 1.0 (ref)
Yes 5527 (66.8%) 98 (70.5%) 1.19 (0.83–1.72)
p = 0.348
1.01 (0.64–1.60)
p = 0.961
Travelled outside of district in previous two weeks
No 8133 (98.3%) 138 (99.3%) 1.0 (ref) 1.0 (ref)
Yes 143 (1.7%) 1 (0.7%) 0.41 (0.06–2.94)
p = 0.373
0.79 (0.10–6.43)
p = 0.827
Axillary temperature ≥ 37.5 °C or reported fever within previous 24 h
No 7971 (96.3%) 99 (71.2%) 1.0 (ref) 1.0 (ref)
Yes 305 (3.7%) 40 (28.8%) 12.00 (8.15–17.68)
p < 0.001
13.64 (8.18–22.74)
p < 0.001
Used anti-malarial in previous month
No 8243 (99.6%) 135 (97.1%) 1.0 (ref) 1.0 (ref)
Yes 33 (0.4%) 4 (2.9%) 8.28 (2.87–23.89)
p < 0.001
4.11 (1.06–15.90)
p < 0.040
Household-level risk factors
> 1 RDT positives in household
No 8026 (97.0%) 77 (55.4%) 1.0 (ref) 1.0 (ref)
Yes 250 (3.0%) 62 (44.6%) 34.05 (23.65–49.01)
p < 0.001
21.72 (13.83–34.10)
p < 0.001
Other members of household travelled in previous month
No 6712 (81.1%) 126 (90.6%) 1.0 (ref) 1.0 (ref)
Yes 1564 (18.9%) 13 (9.4%) 0.44 (0.25–0.78)
p = 0.005
0.90 (0.46–1.74)
p = 0.746
Health facility catchment area
Dounde 946 (11.4%) 7 (5.0%) 1.0 (ref) 1.0 (ref)
Salalatou 1410 (17.0%) 86 (61.9%) 8.71 (4.01–18.91)
p < 0.001
6.74 (2.36–19.23)
p < 0.001
Oudalaye 929 (11.2%) 10 (7.2%) 1.46 (0.55–3.85)
p = 0.445
2.25 (0.58–8.72)
p = 0.242
Niaghana Tidel 666 (8.0%) 14 (10.1%) 2.88 (1.16–7.18)
p = 0.023
1.64 (0.49–5.50)
p = 0.421
Mbem mbem 1726 (20.9%) 11 (7.9%) 0.86 (0.33–2.23)
p = 0.757
1.09 (0.32–3.73)
p = 0.892
Gassane 2599 (31.4%) 11 (7.9%) 0.57 (0.22–1.48)
p = 0.247
0.58 (0.17–1.93)
p = 0.373
Constant 0.00 (0.00–0.01)
p < 0.001
Total 8276 139 8276 8276
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