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Table 2 Distribution of adolescents aged 9-20 years by sex and pubertal stage (n = 2006), Agincourt sub-district, South Africa, 2007.

From: The prevalence of stunting, overweight and obesity, and metabolic disease risk in rural South African children

  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)