Abstract
Abstract Background: Body mass and body size may influence uterine leiomyoma development in Asian populations. Methods: We examined the associations of body mass index, weight change, and childhood, adolescent or current body size with history of uterine leiomyoma in the Korea Nurses’ Health Study. History of uterine leiomyoma and anthropometric factors were assessed through self-administered questionnaires. We included only women who had experienced pregnancies to avoid detection bias. As a result, a total of 5670 women were included and 560 women reported that they had uterine leiomyoma. The median age of women was 38 years. We calculated odds ratios(OR)s and 95% confidence interval (95% CI)s adjusted for potential risk factors for uterine leiomyoma. Results: Current body mass index was associated with higher odds of having uterine leiomyomas; multivariate OR (95% CI) was 1.52(1.03-2.25; P for trend = 0.003) comparing ≥27.5 with 18.5-23 kg/m2. Body size in adulthood was associated with increased odds of having uterine leiomyomas (P for trend = 0.002), whereas childhood or adolescent body size was not. Also, women with greater change in body weight since the first year of college tended to have higher odds of having uterine leiomyomas, compared to those whose weight had been stable. Conclusion: We found that body mass and weight gain in adulthood were associated with increased odds of having uterine leiomyoma in Korean women, but body mass in early life was not. Citation Format: Jung Eun Lee, Ji Eun Lee, Eunyoung Cho, Hee Jung Jang, Heeja Jung, Hea-Young Lee, Su Kim, Ok Soo Kim. Body mass, weight, and body size and uterine leiomyoma in the Korea Nurses’ Health Study. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 3738. doi:10.1158/1538-7445.AM2015-3738
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