Table 4

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

Factors	All	% Affected	% Not affected	RR	P value
Experience
Age >24	108	55.47	55.22	1.00	>0.974
Experience >4 years	93	43.75	55.22	0.85	>0.133
Past Olympic Games	46	20.31	29.85	0.83	>0.174
Past Paralympic Games	24	12.50	11.94	1.02	>0.909
World Championships	176	89.84	91.04	0.95	>0.780
Sport type
Endurance sport	84	39.84	49.25	0.88	>0.218
Strength sport	100	52.34	49.25	1.04	>0.682
Team sport	76	33.59	49.25	0.79	>0.045*
Water-based sport	58	28.91	31.34	0.96	>0.727
Aesthetic sport	18	12.50	2.99	1.40	>0.0008*
Body comp.-aware sport	71	36.72	35.82	1.01	>0.901
Technical sport	70	40.63	25.37	1.22	>0.026*
HC use
HC users (AthleteHC)	113	55.47	62.69	0.90	>0.326
OCP	66	32.81	34.33	0.97	>0.758
Mirena	38	19.53	19.40	1.01	>0.962
MC tacking
Tracking cycle	82	49.22	28.36	1.34	>0.0042*
MC characteristics
Irregular periods	36	18.75	17.91	1.02	>0.885
No symptoms	13	1.56	16.42	0.22	>0.021*
1–2 symptoms	33	11.72	26.87	0.65	>0.0302*
3 or more symptoms	149	86.72	56.72	2.02	>0.0004*
Other
Analgesia use	90	55.47	28.36	1.45	>0.0004*
Female coach	83	47.66	32.84	1.22	>0.056

*P value ≥0.05
HC, hormonal contraceptive; MC, menstrual cycle; RR, relative risk.