In case- control study, 185 women with endometriosisand 370 women without endometriosis were analyzed. The par-ticipants’ mean age was 35.21 years (SD: 7.09) in the case groupand 35.28 years (SD: 7.03) in the control group. The two groupssignificantly were differed regarding the level of education; thepercentage of participants with academic degrees in the case groupwas twice as high as those in the control group (P<0.001).Moreover, 32 (17.3%) women of the case group and 10 (2.7%) women ofthe control group were employed, again indicating a significantdifference be- tween the two groups (P<0.001). However, the twogroups were similar regarding the sufficiency of monthly income(P=0.698). The two groups were compared in a history of diseasessuch as diabetes, hypothyroidism, hypertension, cardiovasculardiseases, cerebrovascular diseases, seizures and asthma, and didnot show any significant differences (P=0.860). The two groups werealso similar regarding an autoimmune disease history, e.g.rheumatoid arthritis, mul- tiple sclerosis, and lupus erythematosus(P=0.669). There were 38 (20.5%) women in the case group and 47(12.7%) women in the control group with a history of allergies, in-dicating a significant difference between the two groups (P=0.016).Nevertheless, both groups were similar regard- ing the type ofallergies (seasonal, food, drug, or skin) (P=0.946). In the casegroup 13 (7%) women reported a history of endometriosis in theirmothers and sisters, and 7 (3.8%) women reported this in theiraunts, while no woman in the control group reported a history ofthis disease in 
Int J Fertil Steril, Vol 13, No 3, October-December 2019232 
her first-degree relatives, demonstrating a significant dif-ference between the groups (P<0.001). Only one woman in thecontrol group had a history of smoking, and no one in either grouphad a history of alcohol use.

The results of the present study are consistent withthe results of Samir’s group. Based on our findings, the risk ofendometriosis is approximately five times higher in women whostated they had vaginal intercourse leading to orgasm duringmenstruation and three times higher in those with non-coital sexualactiv- ity leading to orgasm during menstruation, compared to thosewho stated they did not. 

question

5. What are the findings of the study? Are thesesimilar to what is already found in the field or are these newfindings?

6. Did the graphs, tables and figures in the studyclarify the results? Give specific examples.