Table 6.

Bivariate analysis of associations with recent dengue infection (doubling of IgG levels) among 6326 children aged 3–9 years

Variable	Level	With doubling of IgG		Without doubling of IgG		OR	95%CIca
		Number	Percent	Number	Percent
Age	3–4 years	318	19.4	1636	80.6	1.26	1.10–1.43
	5–9 years	756	16.1	4690	83.9
Sex	Male	568	17.6	3219	82.4	1.10	0.96–1.26
	Female	515	16.3	3161	83.7
Area of residence	Urban	451	18.5	2442	81.5	1.19	1.02–1.38
	Rural	632	16.0	3940	84.0
Region	Acapulco	387	19.4	1994	80.6	1.28	1.10–1.49
	Costa Grande & Costa Chica	696	15.9	4388	84.1
Household use	Business/Home-business	51	21.1	242	78.9	1.32	0.99–1.78
	Home	1027	16.8	6123	83.2
Type of dwelling	Permanent	401	17.2	2332	82.8	1.03	0.91–1.17
	Semi-permanent/ temporary	672	16.8	4011	83.2
Temephos placed in water within last 3 m	Yes	602	17.5	2847	82.5	1.07	0.93–1.22
	No	458	16.5	2313	83.9
Use of anti-mosquito products	Yes	500	18.1	2766	81.9	1.15	1.00–1.33
	No	579	16.1	3595	83.9
Education	≥ 6 years of schooling	672	16.8	4010	83.2	0.96	0.84–1.08
	<6 years or no schooling	405	17.4	2327	82.6
Working head of household	Yes	937	16.8	5563	83.2	0.96	0.77–1.19
	No	130	17.4	745	82.6
People in household	<5 persons	267	16.9	1581	83.1	0.99	0.88–1.12
	≥5 persons	816	17.0	4801	83.0
Larvae-positive containers	Yes	154	16.8	916	83.2	0.99	0.85–1.15
	No	929	17.0	5466	83.0
Pupae-positive containers	Yes	89	17.1	521	82.9	1.01	0.80–1.27
	No	994	17.0	5861	83.0
Larvae- and pupae-positive containers	Yes	159	17.1	931	82.9	1.01	0.86–1.18
	No	924	17.0	5451	83.0

OR Odds ratio, 95%CIca cluster adjusted 95% confidence interval

Figures in bold font indicate an associastion significant at the 5% level