Table 2

Menstrual Cycle characteristics

Menstrual cycle (MC) characteristics
Athletes (n)Athletes (%)Athletes (n)Athletes (%)
Age at menarche<11157.65HC useAthleteNC8242.05
12–138442.86AthleteHC11357.95
14–155528.06
≥164120.92
MC characteristics by HC use
AthleteNC (82)AthleteNC (%)AthleteHC
(113)
AthleteHC (%)All% All
No of periods<41113.412522.123618.37
in the last year4–61113.412824.783919.90
7–91113.411815.932914.80
10–124048.783430.097437.76
>12910.9887.08178.67
MC length (days)25–355465.856860.1812262.24
<25 days67.32108.85168.16
>35 days67.3243.54105.10
Irregular1315.852320.353618.37
N/A33.6687.08115.61
Period duration4–7 days5465.855851.3311257.14
<4 days1720.733228.324925.00
>7 days33.6632.6563.06
Irregular44.881412.39189.18
N/A44.8865.31105.10
Period flowLight1619.513430.095025.51
Moderate4150.005246.029347.45
Heavy1518.2976.192211.22
Irregular33.6665.312110.71
N/A78.541412.3994.59
MC symptomsNil67.3276.19136.67
1–31012.202320.353316.92
>36680.498373.4514976.41
Use of analgesiaYes4048.785044.259046.15
No4251.226355.7510553.85
  • HC, hormonal contraceptive; N/A, not applicable; NC, naturally cycling.