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Table 1 Evolution (1992, 2005 and 2015) of the prevalence (%) and prevalence ratio (PR) for stunting and overweight by age group. Children under five years old in the state of Alagoas, Northeastern Brazil

From: Stunting and overweight among children in Northeast Brazil: prevalence, trends (1992-2005-2015) and associated risk factors from repeated cross-sectional surveys

Age (Months)SampleStunting PR (95% CI)Δ (%)Overweight PR (95% CI)Δ (%)
1992 (a)2005 (b)2015 (c)199220052015199220052015
0.0 –| 24.051168343414.611.34.6− 68.58.18.417.1111.1
Ref.0.78 (0.57–1.05)0.32 (0,20-0,51)* Ref.1.04 (0.70–1.54)2.10 (1.46–3.30)* 
haz z score (mean ± sd) whz z score (mean ± sd) 
    −0.33 ± 1.82−0.37 ± 1.350.16 ± 1.49 0.34 ± 1.240.58 ± 1.120.79 ± 1.35 
24 –| 60.072069855428.311.12.2−92.26.16.513.2116.4
Ref.0,39 (0,30-0,50)*0,08 (0,04-0,14)* Ref.1.07 (0.71–1.60)2.17(1.51–3.11)* 
haz z score (mean ± sd) whz z score (mean ± sd) 
    −1.38 ± 1.29−0.56 ± 1.24−0.09 ± 1.08 0.54 ± 0.930.44 ± 1.090.53 ± 1.36 
TOTAL1.2311.38198822.611.23.2−85.86.97.514.9115.9
Ref.0,49 (0,41–0.60)*0,14 (0,10–0.20)* Ref.1.08 (0.81–1.432.15 (1.67–2.78)* 
haz z score (mean ± sd) whz z score (mean ± sd) 
    −0.94 ± 1.61−0.46 ± 1.300.02 ± 1.28 0.45 ± 1.070.51 ± 1.110.64 ± 1.36 
  1. Stunting: height-for-age (haz) < −2 standard deviations (sd);
  2. Overweight: weight-for-height (whz) > 2 sd
  3. Δ (%) = [(c-a)/a] × 100
  4. * Statistically significant difference, according to the 95% confidence interval (95% CI)
  5. Statistically significant difference, according to one-way ANOVA with Bonferroni post-hoc test