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Table 2 Age distribution of menstruating girls in northwest Ethiopia

From: Age at menarche and the menstrual pattern of secondary school adolescents in northwest Ethiopia

Age Menses started Total
  Yes No  
14.5 1 1 2
15.5 24 12 36
16.5 154 27 181
17.5 190 4 194
18.5 174 3 177
19.5 22 0 22
Total 565 47 612