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)


Kimani-Murage et al. BMC Public Health 2010 10:158   doi:10.1186/1471-2458-10-158

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