AIM: To assess the reliability of pubertal self-assessment of Thai adolescents. SUBJECTS: Some 927 girls and 997 boys, aged 8-18 years, from nine schools in Hat-Yai municipality. METHODS: The adolescents evaluated their pubertal status after being shown a line drawing of the five Tanner stages with a short description. Girls assessed their breast and pubic hair development, and boys assessed their pubic hair development. The pubertal self-assessments were compared to pubertal assessments made by a pediatrician who examined the children after their self-assessment. Kappa coefficient and percent agreement were used for statistical analysis. RESULTS: The percent agreement of breast and pubic hair development between the girl's self-assessments and the assessments by the pediatrician were 60.8% and 78%, respectively. Kappa coefficient for breast assessment was 0.50 (95% confidence interval, CI 0.47-0.53) and for pubic hair 0.68 (95% CI 0.65-0.72). Nearly 30% of girls aged younger than 10 years overestimated their breast development status while 45% of girls aged over 14 years underestimated their breast development (p<0.001). For boys, the percent agreement of pubic hair development between the adolescents and the pediatrician was 76.4%, with a weighted kappa coefficient of 0.68 (95% CI 0.65-0.72). CONCLUSION: Pubertal self-assessment using line drawings with a short description can be used as a reliable method to assess pubic hair maturation in boys and girls, but can be used with less reliability to assess the breast maturation in young girls.
AIM: To assess the reliability of pubertal self-assessment of Thai adolescents. SUBJECTS: Some 927 girls and 997 boys, aged 8-18 years, from nine schools in Hat-Yai municipality. METHODS: The adolescents evaluated their pubertal status after being shown a line drawing of the five Tanner stages with a short description. Girls assessed their breast and pubic hair development, and boys assessed their pubic hair development. The pubertal self-assessments were compared to pubertal assessments made by a pediatrician who examined the children after their self-assessment. Kappa coefficient and percent agreement were used for statistical analysis. RESULTS: The percent agreement of breast and pubic hair development between the girl's self-assessments and the assessments by the pediatrician were 60.8% and 78%, respectively. Kappa coefficient for breast assessment was 0.50 (95% confidence interval, CI 0.47-0.53) and for pubic hair 0.68 (95% CI 0.65-0.72). Nearly 30% of girls aged younger than 10 years overestimated their breast development status while 45% of girls aged over 14 years underestimated their breast development (p<0.001). For boys, the percent agreement of pubic hair development between the adolescents and the pediatrician was 76.4%, with a weighted kappa coefficient of 0.68 (95% CI 0.65-0.72). CONCLUSION: Pubertal self-assessment using line drawings with a short description can be used as a reliable method to assess pubic hair maturation in boys and girls, but can be used with less reliability to assess the breast maturation in young girls.
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