Am J Epidemiol 2003; 158:288.
Copyright © 2003 by Johns
Hopkins Bloomberg School of Public Health
LETTERS TO THE EDITOR |
RE: "DIFFERENTIAL ASSOCIATION OF BODY MASS INDEX AND FAT DISTRIBUTION WITH THREE MAJOR HISTOLOGIC TYPES OF LUNG CANCER: EVIDENCE FROM A COHORT OF OLDER WOMEN"
Department of Respiratory Medicine, CResT Directorate, St. Jamess Hospital, University of Dublin (Trinity College), Dublin 8, Ireland
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I read with interest the study by Olson et al. (1). The findings have inched forward our understanding of the causal pathway of lung cancer development by histologic subtypes. However, I have concerns about the external validity (generalizability) of their new findings. Residual confounding due to active smoking effects alone does not explain the overall results, but