Table 6 Multivariable logistic regression analysis of risk factors for microfilaraemia in the total population. Likelihood-ratio test for random effect vs fixed effect model, final model (P = 0.260)
From: Risk factors for lymphatic filariasis in two villages of the Democratic Republic of the Congo
Variable | Category | Full model | Final model | ||
|---|---|---|---|---|---|
Adj OR (95% CI) | P | Adj OR (95% CI) | P | ||
Age (ref: 5–10 years-old) | 11–20 | 4.07 (1.26–13.03) | 0.018 | 5.02 (1.64–15.32) | 0.005 |
21–35 | 5.87 (1.73–20.00) | 0.005 | 7.78 (2.57–23.56) | 0.001 | |
> 35 | 9.37 (2.84–30.92) | 0.001 | 12.68 (4.22–38.07) | 0.001 | |
Sex (ref: female) | Male | 1.99 (1.19–3.33) | 0.008 | 1.86 (1.15–3.01) | 0.011 |
Village (ref: Mbumkimi) | Misay | 1.25 (0.60–2.58) | 0.554 | ||
Bednets (ref: yes) | No | 0.94 (0.57–1.56) | 0.816 | ||
Latrines (ref: no) | Yes | 1.05 (0.54–2.07) | 0.882 | ||
Fishing (ref: no) | Yes | 1.00 (0.56–1.76) | 0.993 | ||
Occasional stay in the bush (ref: no) | Yes | 1.92 (1.11–3.35) | 0.020 | 2.01 (1.18–3.42) | 0.010 |
Agricultural practice (ref: no) | Yes, same side | 1.65 (0.62–4.44) | 0.312 | ||
Yes, other side | 1.67 (0.72–3.87) | 0.235 | |||
Previous AH treatment (ref: yes) | No | 2.54 (1.33–4.84) | 0.005 | 2.50 (1.33–4.72) | 0.005 |
na | 0.94 (0.19–4.63) | 0.939 | 0.78 (0.16–3.82) | 0.757 | |
Population density (ref: low) | Intermediate | 1.32 (0.65–2.69) | 0.446 | ||
High | 1.65 (0.82–3.34) | 0.163 | |||
na | 1.77 (0.48–6.55) | 0.389 | |||
Distance to Nsitim River (ref: > 400 m) | 300–400 m | 2.37 (1.20–4.68) | 0.013 | 1.97 (1.17–3.33) | 0.011 |
0–300 m | 3.02 (1.02–8.89) | 0.046 | 2.73 (1.04–7.11) | 0.041 | |
Distance to Kwilu River (ref: > 400 m) | 300–400 m | 1.00 (0.40–2.54) | 0.989 | ||
0–300 m | 1.52 (0.65–3.54) | 0.335 | |||
Number of household members | 0.99 (0.85–1.15) | 0.908 | |||