Ovarian cancer and smoking: individual participant meta-analysis including 28 114 women with ovarian cancer from 51 epidemiological studies

V. Beral*, K. Gaitskell, C. Hermon, K. Moser, G. Reeves, L. Brinton, P. Marchbanks, E. Negri, R. Ness, P. H. M. Peeters, E. E. Calle, S. M. Gapstur, A. V. Patel, L. Dal Maso, R. Talamini, A. Chetrit, G. Hirsh-Yechezkel, F. Lubin, S. Sadetzki, E. BanksD. Bull, K. Callaghan, B. Crossley, A. Goodill, J. Green, T. Key, F. Sitas, R. Collins, R. Doll, R. Peto, A. Gonzalez, N. Lee, H. W. Ory, H. B. Peterson, P. A. Wingo, N. Martin, T. Pardthaisong, S. Silpisornkosol, C. Theetranont, B. Boosiri, S. Chutivongse, P. Jimakorn, P. Virutamasen, C. Wongsrichanalai, A. Tjonneland, L. Titus-Ernstoff, T. Byers, T. Rohan, B. J. Mosgaard, M. Vessey, D. Yeates, J. L. Freudenheim, J. Chang-Claude, R. Kaaks, K. E. Anderson, A. Folsom, K. Robien, J. Hampton, P. A. Newcomb, M. A. Rossing, D. B. Thomas, N. S. Weiss, E. Riboli, F. Clavel-Chapelon, D. Cramer, S. E. Hankinson, S. S. Tworoger, S. Franceschi, C. La Vecchia, H. O. Adami, C. Magnusson, T. Riman, E. Weiderpass, A. Wolk, L. J. Schouten, P. A. van den Brandt, N. Chantarakul, S. Koetsawang, D. Rachawat, D. Palli, A. Black, L. A. Brinton, D. M. Freedman, P. Hartge, A. W. Hsing, J. V., Jr. Lacey, R. N. Hoover, C. Schairer, M. Urban, S. Graff-Iversen, R. Selmer, C. J. Bain, A. C. Green, D. M. Purdie, V. Siskind, P. M. Webb, K. Moysich, S. E. McCann, P. Hannaford, C. Kay, C. W. Binns, A. H. Lee, M. Zhang, R. B. Ness, P. Nasca, P. F. Coogan, J. R. Palmer, L. Rosenberg, J. Kelsey, R. Paffenbarger, A. Whittemore, K. Katsouyanni, A. Trichopoulou, D. Trichopoulos, A. Tzonou, A. Dabancens, L. Martinez, R. Molina, O. Salas, M. T. Goodman, G. Lurie, M. E. Carney, L. R. Wilkens, L. Hartman, J. Manjer, H. Olsson, J. A. Grisso, M. Morgan, J. E. Wheeler, C. H. Bunker, R. P. Edwards, F. Modugno, J. Casagrande, M. C. Pike, R. K. Ross, A. H. Wu, A. B. Miller, M. Kumle, I. T. Gram, E. Lund, L. McGowan, X. O. Shu, W. Zheng, T. M. M. Farley, S. Holck, O. Meirik, H. A. Risch

*Corresponding author for this work

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Background Smoking has been linked to mucinous ovarian cancer, but its effects on other ovarian cancer subtypes and on overall ovarian cancer risk are unclear, and the findings from most studies with relevant data are unpublished. To assess these associations, we review the published and unpublished evidence. Methods Eligible epidemiological studies were identified by electronic searches, review articles, and discussions with colleagues. Individual participant data for 28 114 women with and 94 942 without ovarian cancer from 51 epidemiological studies were analysed centrally, yielding adjusted relative risks (RRs) of ovarian cancer in smokers compared with never smokers. Findings After exclusion of studies with hospital controls, in which smoking could have affected recruitment, overall ovarian cancer incidence was only slightly increased in current smokers compared with women who had never smoked (RR 1.06, 95% CI 1.01-1.11, p=0.01). Of 17 641 epithelial cancers with specified histology, 2314 (13%) were mucinous, 2360 (13%) endometrioid, 969 (5%) clear-cell, and 9086 (52%) serous. Smoking-related risks varied substantially across these subtypes (p(heterogeneity)
Original languageEnglish
Pages (from-to)946-956
JournalLancet oncology
Issue number9
Publication statusPublished - Sep 2012

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