Table 2. Data in reference to menstrual history as per sports modality.

Modality	Menarche	Amenorrhea (%)	Irregular cycles (%)	Training during menstruation (%)
	(age in years)mean±SD
Track and field	12.3±1.9	14.30	42.90	95.00
Basketball	13.2±1.3	0.00	45.50	100.00
Boxing	11.3±2.1	50.00	75.00	75.00
Soccer	12.7±0.9	11.90	62.50	95.20
Handball	12.0±1.3	6.50	41.30	97.80
Judo	12.4±1.5	66.70	20.00	100.00
Wrestling	11.7±1.1	28.60	71.40	100.00
Swimming	12.3±0.6	0.00	66.70	100.00
Total	12.4±1.3	13.50	50.40	96.40