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. 2010 May;49(3):289–293.

Table 2.

Characteristics of a subset of 19 menstrual cycles and periods

Menstrual cycle
Menstrual period
Duration of menstrual cycle (d) 1–2 d
3–4 d
5–6 d
7 d
Cycles (n) % n % n % n % n %
24 3 15.79 2 10.53 1 5.26
25 1 5.26 1 5.26
27 1 5.26 1 5.26
28 5 26.32 2 10.53 2 0.53 1 5.26
29 3 15.79 1 5.26 2 10.53
30 5 26.32 2 10.53 3 15.79
31 1 5.26 1 5.26
Total 19 100.00 3 5.79 9 47.38 6 1.57 1 5.26