Skip to main content

Table 2 Height increment from 6 to 36 months post-menarche in indigenous and non-indigenous girls

From: Postmenarche growth: cohort study among indigenous and non-indigenous Chilean adolescents

Period Growth (cm) P value*
  Non-indigenous Indigenous  
0-6 months post-menarche (n =117) (n =108) 0.001
\( \overline{x}\left[95\%\;\mathrm{C}\mathrm{I}\right] \) 3.5 [3.3 to 3.7] 3.0 [2.8 to 3.2]
6-12 months post-menarche (n =117) (n =105) 0.856
\( \overline{x}\left[95\%\;\mathrm{C}\mathrm{I}\right] \) 1.3 [1.1 to 1.5] 1.3 [1.2 to 1.5]
12-18 months post-menarche (n =113) (n =104) 0.546
\( \overline{x}\left[95\%\;\mathrm{C}\mathrm{I}\right] \) 0.8 [0.7 to 1.0] 0.8 [0.6 to 0.9]
18-24 months post-menarche (n =109) (n =101) 0.719
\( \overline{x}\left[95\%\;\mathrm{C}\mathrm{I}\right] \) 0.7 [0.6 to 0.9] 0.7 [0.6 to 0.8]
24-30 months post-menarche (n =108) (n =100) 0.010
\( \overline{x}\left[95\%\;\mathrm{C}\mathrm{I}\right] \) 0.5 [0.4 to 0.6] 0.3 [0.2 to 0.4]
30-36 months post-menarche (n =105) (n =96) 0.674
\( \overline{x}\left[95\%\;\mathrm{C}\mathrm{I}\right] \) 0.3 [0.2 to 0.4] 0.3 [0.2 to 0.4]
Total:    
0-36 months post-menarche (n =105) (n =96) 0.020
\( \overline{x}\left[95\%\;\mathrm{C}\mathrm{I}\right] \) 7.2 [6.8 to 7.7] 6.5 [6.0 to 6.9]
  1. \( \overline{x}\left[95\%\;\mathrm{C}\mathrm{I}\right] \) = Mean 95% Confidence Interval.
  2. *ANOVA test.