Table 3.

Prevalence rates of underweight, stunting, and wasting in indigenous children < 60 months according to characteristics of the household and sanitation, First National Survey of Indigenous People’s Health and Nutrition, Brazil, 2008-2009

	N†	Underweight		Stunting		Wasting
		Prevalence	PR	Prevalence	PR	Prevalence	PR
		(%)	(CI 95%)	(%)	(CI 95%)	(%)	(CI 95%)
Piped drinking water			p < 0.001 *		p = 0.003 *		p = 0.08 *
Inside home	902	2.4	1.00	17.6	1.00	0.8	1.00
			(reference)		(reference)		(reference)
Outside home	2961	5.0	2.08	24.9	1.41	1.3	1.58
			(1.29-3.36)		(0.93-2.14)		(0.62-4.03)
Other	2180	10.3	4.28	33.3	1.89	1.7	2.07
			(2.57-7.12)		(1.20-2.96)		(0.84-5.09)
Location used for defecation			p = 0.001 *		p < 0.001 *		p = 0.01 *
Indoor household facility	3243	4.2	1.00	20.5	1.00	1.00	1.00
			(reference)		(reference)		(reference)
Outdoor household facility	680	6.5	1.53	34.6	1.68	0.7	0.71
			(1.04-2.26)		(1.31-2.16)		(0.32-1.60)
Other	2108	8.6	2.04	32.4	1.58	1.9	1.92
			(1.33-3.11)		(1.23-2.02)		(1.19-3.09)
Trash collection service in the village			p < 0.001 *		p < 0.001 *		p = 0.97 *
Yes	718	2.4	1.00	11.1	1.00	1.3	1.00
			(reference)		(reference)		(reference)
No	5313	6.6	2.74	28.4	2.55	1.3	0.96
			(1.85-4.06)		(1.59-4.10)		(0.51-1.82)

PR, Prevalence ratio.

CI, Confidence interval.

^† Maximum N for each category, which may vary between variables due to missing data.

* χ² test of heterogeneity.

** χ² test for linear trend.