Demographic Factor
Age
Increased incidence of Epithelial Ovarian Cancer is more pronounced over 65 years of age. According to previous studies, median age of diagnosis is 50-79 years.
Reproductive Factor
Pregnancy Characteristics
Results of a study showed that delivery of MALE Infant associated with a 2-times increase in the risk of mucinous ovarian cancer.
Menstrual-related Factors
Findings from a study supports the “Incessant theory”, wherein, the reduction of ovulation have a protective effect against ovarian cancer.
Age of Childbirth
Results of a case-control study indicated that older age in pregnancy is associated with a decreased risk of ovarian cancer related to the number of pregnancies.
Parity
Based on the results of a case-controlled study, the risk of ovarian cancer is reduced in women with live birth.
Cynecologic Factor
Endometriosis
Through various mechanism, the relationship of endometriosis and ovarian cancer had been shown in various studies.
Pelvic Inflammatory Disease
In a case-controlled study it supported the hypothesis that suggests that inflammation contributes to the onset of ovarian cancer.
Hormonal Factor
Hormone Replacement Therapy
The result of a case-controlled study showed that combined estrogen-progesterone therapy after menopause does not increase of ovarian cancer.
Contraceptive Methods
Result of most studies indicates that the use of oral contraceptive methods is associated with a reduced risk of all histological types of ovarian cancer.
Lifestyle Factor
Obesity and Physical Activity
Results of the study showed that obesity reduces the risk of survival in ovarian cancer and increases the risk of death caused by the disease.
Nutrition and Diet
According to a case-controlled study. there is positive correlation between daily intake of fish and the risk of ovarian cancer and this correlation is negative for daily intake of milk
