Skip to main content

Table 3 Anemia prevalence and mean hemoglobin levels of Indigenous women according to individual characteristics. First National Survey of Indigenous People’s Health and Nutrition, Brazil, 2008–2009

From: Anemia among indigenous women in Brazil: findings from the First National Survey of Indigenous People’s Health and Nutrition

   Anemia Prevalence Hemoglobin (g/dL)
  na OR (95 % CI) p-value* β (95 % CI) p-value*
Age group (years)    0.250   0.021
  14–19 1691 Reference (1)   Reference (0)  
  20–34 3468 0.95 (0.82; 1.09)   0.05 (-0.07; 0.16)  
   ≥ 35 1492 0.88 (0.75; 1.03)   0.16 (0.03; 0.29)  
Schooling (years)    0.302   0.059
  0 998 Reference (1)   Reference (0)  
  1–4 2597 0.97 (0.81; 1.16)   0.01 (-0.16; 0.18)  
  5–9 1811 0.89 (0.74; 1.08)   0.13 (-0.06; 0.32)  
   ≥ 10 1197 0.80 (0.61; 1.05)   0.19 (-0.05; 0.42)  
BMI    <0.001   <0.001
  Underweight 183 0.78 (0.51; 1.21)   0.14 (-0.15; 0.43)  
  Normal weight 3618 Reference (1)   Reference (0)  
  Overweight 1977 0.78 (0.67; 0.92)   0.14 (0.02; 0.26)  
  Obese 845 0.62 (0.50; 0.77)   0.39 (0.23; 0.55)  
Parity 6621 1.03 (1.00; 1.07) 0.060 -0.03 (-0.06; 0.00) 0.018
Malaria treatment    <0.001   <0.001
  Yes 568 Reference (1)   Reference (0)  
  No 6051 0.43 (0.29; 0.62)   0.62 (0.29; 0.96)  
Current pregnancy    0.277   <0.001
  Yes 646 Reference (1)   Reference (0)  
  No 5720 0.89 (0.73; 1.10)   1.07 (0.93; 1.20)  
  1. OR odds ratio, CI confidence interval, BMI Body mass index
  2. *Wald Test of heterogeneity
  3. aMaximum N for each category, which may vary between variables due to missing data