Table 1.

Prevalence rates of anemia among indigenous children < 60 months according to geopolitical region, sex, age, and socioeconomic characteristics, First National Survey of Indigenous People’s Health and Nutrition, Brazil, 2008–2009

Characteristic studied	N	Prevalence (%)	PR	CI 95%
Region
Northeast	1211	41.06	1.00	Reference
South/Southeast	765	47.95	1.17	0.95-1.44
Central-West	1141	51.52	1.25	1.04-1.51
North	2280	66.40	1.62	1.36-1.92
Child's sex†
Female	2635	49.60	1.00	Reference
Male	2761	52.79	1.06	1.01-1.13
Child’s age (months)†			p = 0.000*
6–11	673	80.24	1.00	Reference
12–23	1198	68.21	0.85	0.78-0.92
24–35	1170	48.78	0.61	0.55-0.67
36–47	1239	39.42	0.49	0.44-0.55
48–59	1117	32.86	0.41	0.36-0.47
Maternal schooling (years)†			p = 0.000*
0	950	57.23	1.39	1.23-1.56
1–4	2370	52.70	1.28	1.15-1.42
5–9	1345	49.90	1.21	1.08-1.35
≥ 10	683	41.25	1.00	Reference
Regular income†
Yes	2217	48.97	1.00	Reference
No	3168	52.86	1.08	1.01-1.15
Household goods index (tertile)†			p = 0.000*
1st	1802	59.85	1.38	1.23-1.54
2nd	2083	51.73	1.19	1.09-1.30
3rd	1512	43.50	1.00	Reference

PR Prevalence ratio.

CI Confidence interval.

*χ² test for linear trend.

^†Variable retained for multivariate analysis.