Plasmodium falciparum malaria parasitaemia among indigenous Batwa and non-indigenous communities of Kanungu district, Uganda

Table 3 Univariable and multivariable explanatory logistic regression analyses of malaria parasitaemia for Batwa and non-Batwa of Kanungu District, Uganda, July 2013 and April 2014

Risk factor	Univariable models Unadjusted odds (OR [CI])^a	Reduced multivariable model Adjusted odds (OR [CI])^a
Risk factor	Univariable models Unadjusted odds (OR [CI])^a	N = 717
Non-modifiable
Age	N = 688
<50 years	Ref
≥50 years	1.49 [0.73–3.04]
Sex	N = 749
Female	Ref
Male	0.99 [0.55–1.81]
Ethnicity	N = 758
Non-Batwa	Ref	Ref
Batwa	2.21 [1.23–3.98]	1.88 [1.00–3.58]
Modifiable
Relative wealth	N = 728
Wealthier 50 %	Ref	Ref
Poorer 50 %	2.48 [1.30–4.66]	1.96 [0.98–3.94]
Bed net ownership	N = 755
Yes	Ref
No	1.36 [0.76–2.43]
Livestock ownership	N = 753
Yes	Ref	Ref
No	1.59 [0.87–2.91]	1.44 [0.75–2.79]
House construction (roof)	N = 752
Thatch	Ref	Ref
Iron sheets	1.92 [0.75–4.94]	2.54 [0.96–6.72]
Malaria knowledge (avoid mosquito bites)	N = 755
Yes	Ref	Ref
No	2.11 [0.89–5.06]	1.92 [0.79–4.63]

^aUnadjusted odds represents the logistic regression model for each variable alone and the outcome of interest (RDT positivity). Adjusted odds is the odds ratio when all listed variables are included in the logistic regression model. These results are consistent on sensitivity analysis for survey date