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Relative risk of adenocarcinoma and squamous cell carcinoma of the oesophagus by BMI, in different follow-up periods. RR stratified by year of birth and year of recruitment; adjusted for joint smoking and alcohol status, OC use, MHT use, exercise, parity, menopausal status and age, age at menarche, region and socioeconomic status. RR, relative risk; g(s)CI, (group-specific) confidence interval; BMI, body mass index; OC, oral contraceptive; MHT, menopausal hormone therapy
