Table 4

Comparison of ‘affected’ versus ‘not affected’ athletes: factor analysis

FactorsAll% Affected% Not affectedRRP value
Experience
 Age >2410855.4755.221.00>0.974
 Experience >4 years9343.7555.220.85>0.133
 Past Olympic Games4620.3129.850.83>0.174
 Past Paralympic Games2412.5011.941.02>0.909
 World Championships17689.8491.040.95>0.780
Sport type
 Endurance sport8439.8449.250.88>0.218
 Strength sport10052.3449.251.04>0.682
 Team sport7633.5949.250.79>0.045*
 Water-based sport5828.9131.340.96>0.727
 Aesthetic sport1812.502.991.40>0.0008*
 Body comp.-aware sport7136.7235.821.01>0.901
 Technical sport7040.6325.371.22>0.026*
HC use
 HC users (AthleteHC)11355.4762.690.90>0.326
 OCP6632.8134.330.97>0.758
 Mirena3819.5319.401.01>0.962
MC tacking
 Tracking cycle8249.2228.361.34>0.0042*
MC characteristics
 Irregular periods3618.7517.911.02>0.885
 No symptoms131.5616.420.22>0.021*
 1–2 symptoms3311.7226.870.65>0.0302*
 3 or more symptoms14986.7256.722.02>0.0004*
Other
 Analgesia use9055.4728.361.45>0.0004*
 Female coach8347.6632.841.22>0.056
  • *P value ≥0.05

  • HC, hormonal contraceptive; MC, menstrual cycle; RR, relative risk.