Table 2 Distribution of adolescents aged 9-20 years by sex and pubertal stage (n = 2006), Agincourt sub-district, South Africa, 2007.
Boys | Girls | Significant difference by sex (P-value) | |||
|---|---|---|---|---|---|
Stage | Mean age (SD) | N (%) | Mean age | N (%) | |
1 | 11.3 (1.5) | 254 (26) | 10.5 (1.1) | 156 (15) | P < 0.0001 |
2 | 13.3 (2.4) | 296 (30) | 12.0 (1.7) | 186 (18) | P < 0.0001 |
3 | 16.4 (2.3) | 188 (19) | 14.6 (2.4) | 243 (24) | P < 0.0001 |
4 | 18.1 (1.9) | 193 (20) | 16.9 (2.3) | 306 (30) | P < 0.0001 |
5 | 18.5 (1.8) | 45 (5) | 18.3 (2.0) | 139 (14) | P = 0.3954 |
Total | 14.1 (3.3) | 976(49) | 14.1 (3.4) | 1030(51) | |