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] | |