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Body fatness over the life course and risk of serrated polyps and conventional adenomas
Author(s) -
Lo ChunHan,
He Xiaosheng,
Hang Dong,
Wu Kana,
Ogino Shuji,
Chan Andrew T.,
Giovannucci Edward L.,
Song Mingyang
Publication year - 2020
Publication title -
international journal of cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.475
H-Index - 234
eISSN - 1097-0215
pISSN - 0020-7136
DOI - 10.1002/ijc.32958
Subject(s) - medicine , early adulthood , body mass index , young adult , odds ratio , middle age , logistic regression , life course approach , colorectal cancer , endocrinology , demography , cancer , psychology , developmental psychology , sociology
Serrated polyps (SPs) and conventional adenomas represent 2 distinct groups of colorectal premalignancy. The influence of early life adiposity on risk of these precursors remains unclear. Within the Nurses' Health Study, the Nurses' Health Study 2, and the Health Professionals Follow‐up Study, we assessed body fatness during childhood using 9‐level somatotype and obtained weight and body mass index (BMI) in adulthood. We used multivariable‐adjusted logistic regression to examine the association of SPs and conventional adenomas with body fatness in early childhood (age 5), late childhood (age 10), early adulthood (age 18/21) and middle adulthood (baseline) and weight change during early‐to‐middle adulthood. During 18–20 years of follow‐up, we documented 8,697 SPs and 10,219 conventional adenomas in 132,514 women; 2,403 SPs and 4,495 conventional adenomas in 29,207 men. We found a modest positive association of adiposity in early and late childhood with risk of SPs and conventional adenomas, with odds ratios ranging from 1.12 to 1.18 for comparison of extreme somatotypes groups. The associations were attenuated after adjusting for adulthood BMI but remained significant for conventional adenomas. No association with early life body fatness was found in men. Adulthood body fatness and weight change during early‐to‐middle adulthood showed positive relationships with SPs and conventional adenomas in both women and men, with stronger associations observed for SPs ( p heterogeneity < 0.0001). Our findings indicated a potential role in development of colorectal cancer precursors of childhood body fatness in women, and early‐to‐middle adulthood weight gain and attained adiposity in both sexes.