Table 3.

Risk factor analysis for malaria infection: uni- and multivariate adjusted analysis using survey logistic regression (n = 429)

Risk factors	Parasite prevalence	Cases		Unadjusted	Adjusted
	(%)	n	N	OR (95%CI)
Total	14.2	429	3,023
Gender:
- Male	16.0	225	1,409	1.00	1.00
- Female	12.6	204	1,614	0.76 (0.59–0.99)	0.75° (0.57–0.98)
Age (y):
- < 16	17.9	121	677	1.00	1.00
- 16–45	13.7	270	1,976	0.73° (0.59–0.90)	0.65° (0.52–0.81)
- > 45	10.3	38	370	0.53° (0.36–0.76)	0.47° (0.31–0.73)
Ethnic group:
- Ra-glai	15.1	409	2,708	1.00	1.00
- Others	6.3	20	315	0.39 (0.14–1.10)	0.47 (0.16–1.35)
Education:
- No	16.4	165	1,007	1.00	1.00
- Primary	14.2	250	1,760	0.84 (0.55–1.31)	0.85 (0.55–1.33)
- Secondary or more	5.5	14	255	0.30° (0.20–0.44)	0.42° (0.27–0.64)
Wealth:
- Low	17.1	305	1,783	1.00	1.00
- Medium	13.6	40	295	0.76 (0.30–1.92)	0.87 (0.36–2.10)
- High	8.9	84	945	0.43° (0.32–0.71)	0.51° (0.35–0.75)
Forest activities last month:
- No work & no sleep in forest	12.5	50	401	1.00	1.00
- Work +/- sleep occasionally	14.1	358	2544	1.15 (0.67–1.96)	1.19 (0.73–1.92)
- Work & sleep regularly	26.9	21	78	2.59° (1.29–5.19)	2.70° (1.40–5.21)
Bed net use:
- No	28.5	39	137	1.00	1.00
- Untreated bed net	23.3	49	210	0.76 (0.42–1.38)	0.82 (0.44–1.53)
- Insecticide-treated bed net	12.7	341	2,674	0.37° (0.17–0.78)	0.46° (0.23–0.90)

°p < 0.05