שאלה משלב א׳ ברפואה תעסוקתית · מועד 2020, שאלה 150

Correct: C — selection bias. The apparently protective effect in athletes is the healthy-worker phenomenon in another guise: people with better than average lung function select themselves into the occupation, which the authors called the super-normal lung. Option A, confounding, option B, misclassification, and option D, recall bias, do not explain a selection into the exposure group on the basis of the outcome measure itself.

מקור: Article, De Matteis et al. The occupations at increased risk of COPD. Eur Respir J 2019