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Table 1 Data extracted from the articles selected for a more detailed analysis

From: Endometriosis and physical exercises: a systematic review

Reference Objective Design Materials Sample size Physical exercise/endometriosis association
Cramer DW et al. [11] Comparison of menstrual and constitutional factors in women with and without endometriosis Retrospective comparative Questionnaire focused on demographic, menstrual, reproductive and exercise history 268 cases of endometriosis and 3794 controls A lower risk for women who practiced regular exercise a minimum of 2 h/week
Han M et al. [12] Provide information about the prophylaxis of the endometriosis Case–control Questionnaire focused on demographic, menstrual, reproductive and exercise history 203 cases of endometriosis and 406 controls Avoidance of strenuous exercise during the menstruation is a preventive factor for endometriosis
Signorello LB et al. [13] Identify risk factors for endometriosis Case–control Questionnaire focused on menstrual, marital, reproductive and exercise history 50 cases of endometriosis and controls: 47 infertile/89 fertile Practice 2 to 4 hours per week of regular exercise decreases 65% chance of endometriosis
Dhillon PK and Holt VL. [14] Evaluate the risk of endometrioma associated to physical activity Case–control Questionnaire focused on menstrual, marital, reproductive and exercise history 77 cases of endometrioma and 735controls Frequent and high-intensity activity during 2 years reduced 76% of endometrioma risk
Vitonis AF et al. [15] Clarify the relationship between physical activity and endometriosis Prospective cohort study Questionnaire focused on demographic, biologic and lifestyle risk factors 2703 cases of endometriosis and controls: 1857 fertile/846 infertile Aerobic exercise had a protective effect in women with confirmed endometriosis
Koppan A et al. [16] Identify factors that influence on quality of life and pain scores in women with endometriosis Case–control Questionnaire focused on age, marital, education, reproductive, medical and exercise history 81 cases of endometriosis: 31 regular exercise/50 no exercise Taking painkillers is less effective in women with endometriosis that practice regular daily sport activities