From: Breast bud detection: a validation study in the Chilean Growth Obesity Cohort Study
Girl’s Breast Tanner rating | Breast Tanner rating by trained personnel | ||||
---|---|---|---|---|---|
Tanner 2 + | Tanner 1 | Kappa index | Spearman | ||
N (%) | N (%) | (95% CI) | |||
Study population | |||||
Entire Study Population (n = 474) | Tanner 2 | 24 (35.8) | 132 (32.4) | 0.02 (-0.06; 0.10) | 0.03 |
Tanner 1 | 43 (64.2) | 275 (67.6) | |||
Total | 67 | 407 | |||
Stratified by girls’ BMI z-score at assessment | |||||
Girls’ BMI z-score ≤ 1DS (n = 274) | Tanner 2 | 14 (35.9) | 57 (24.3) | 0.09 (0.004; 0.17) | 0.09 |
Tanner 1 | 25 (64.1) | 178 (75.7) | |||
Total | 39 | 235 | |||
Girls’ BMI z-score > 1DS (n = 200) | Tanner 2 | 10 (35.7) | 75 (43.6) | -0.04 (-0.12; 0.03) | -0.06 |
Tanner 1 | 18 (64.3) | 97 (56.4) | |||
Total | 28 | 172 |