Menstrual cycle (MC) characteristics | |||||||
Athletes (n) | Athletes (%) | Athletes (n) | Athletes (%) | ||||
Age at menarche | <11 | 15 | 7.65 | HC use | AthleteNC | 82 | 42.05 |
12–13 | 84 | 42.86 | AthleteHC | 113 | 57.95 | ||
14–15 | 55 | 28.06 | |||||
≥16 | 41 | 20.92 | |||||
MC characteristics by HC use | |||||||
AthleteNC (82) | AthleteNC (%) | AthleteHC (113) | AthleteHC (%) | All | % All | ||
No of periods | <4 | 11 | 13.41 | 25 | 22.12 | 36 | 18.37 |
in the last year | 4–6 | 11 | 13.41 | 28 | 24.78 | 39 | 19.90 |
7–9 | 11 | 13.41 | 18 | 15.93 | 29 | 14.80 | |
10–12 | 40 | 48.78 | 34 | 30.09 | 74 | 37.76 | |
>12 | 9 | 10.98 | 8 | 7.08 | 17 | 8.67 | |
MC length (days) | 25–35 | 54 | 65.85 | 68 | 60.18 | 122 | 62.24 |
<25 days | 6 | 7.32 | 10 | 8.85 | 16 | 8.16 | |
>35 days | 6 | 7.32 | 4 | 3.54 | 10 | 5.10 | |
Irregular | 13 | 15.85 | 23 | 20.35 | 36 | 18.37 | |
N/A | 3 | 3.66 | 8 | 7.08 | 11 | 5.61 | |
Period duration | 4–7 days | 54 | 65.85 | 58 | 51.33 | 112 | 57.14 |
<4 days | 17 | 20.73 | 32 | 28.32 | 49 | 25.00 | |
>7 days | 3 | 3.66 | 3 | 2.65 | 6 | 3.06 | |
Irregular | 4 | 4.88 | 14 | 12.39 | 18 | 9.18 | |
N/A | 4 | 4.88 | 6 | 5.31 | 10 | 5.10 | |
Period flow | Light | 16 | 19.51 | 34 | 30.09 | 50 | 25.51 |
Moderate | 41 | 50.00 | 52 | 46.02 | 93 | 47.45 | |
Heavy | 15 | 18.29 | 7 | 6.19 | 22 | 11.22 | |
Irregular | 3 | 3.66 | 6 | 5.31 | 21 | 10.71 | |
N/A | 7 | 8.54 | 14 | 12.39 | 9 | 4.59 | |
MC symptoms | Nil | 6 | 7.32 | 7 | 6.19 | 13 | 6.67 |
1–3 | 10 | 12.20 | 23 | 20.35 | 33 | 16.92 | |
>3 | 66 | 80.49 | 83 | 73.45 | 149 | 76.41 | |
Use of analgesia | Yes | 40 | 48.78 | 50 | 44.25 | 90 | 46.15 |
No | 42 | 51.22 | 63 | 55.75 | 105 | 53.85 |
HC, hormonal contraceptive; N/A, not applicable; NC, naturally cycling.