Skip to main content
. 2024 Feb 13;8:453. Originally published 2023 Oct 12. [Version 2] doi: 10.12688/wellcomeopenres.19793.2

Table 5. Frequency of reported Tanner stage of male genital development across the nine time points.

Q Age (y) Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 N (= 100%)
1 8 29.2% 39.2% 25.9% 5.3% 0.4% 2791
2 9 61.4% 31.2% 5.3% 0.7% 0.1% 3606
3 10 21.0% 37.4% 31.6% 9.6% 0.4% 2892
4 11 10.5% 30.2% 39.0% 18.6% 1.7% 2611
5 12 3.5% 14.9% 34.7% 37.7% 9.2% 2138
6 14 1.0% 4.7% 17.3% 50.7% 26.4% 2873
7 15 0.5% 2.0% 10.6% 51.2% 35.8% 2566
8 16 0.4% 1.1% 7.0% 36.6% 54.9% 1673
9 17 0.3% 0.7% 3.7% 25.4% 69.9% 1525

Q = questionnaire no.; Y = year; N = no. of individuals with data