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In the time period 1996-2004, a case-control study on diet and cervical cancer was conducted at the National Cancer Institute in Uruguay. The study included 268 cases and 536 controls with non-neoplastic diseases. The foods and beverages in the food-frequency questionnaire were included in a factor analytic model. This method retained three factors which were labeled as the drinker, red meat, and prudent patterns. The model explained 60% of the variance. Whereas the red meat and drinker patterns were directly associated with the risk of cervical cancer (OR for red meat pattern 1.79, 95% CI 1.12-2.86), on the other hand, the prudent pattern was inversely associated with cervical cancer (OR 0.60, 95% CI 0.38-0.93). To our knowledge, this study was the first one using factor analysis in order to elucidate the role of the diet in relation with cervical cancer.
Stéfani et al. (Sat,) studied this question.