Abstract
To the Editor: It was with some surprise that we read in the article by Maclure et al. (Aug. 31 issue)1 that parity was not a risk factor in the development of symptomatic cholelithiasis in the Nurses' Health Study. Research on the pathophysiology of gallstone formation has focused in part on the effects of pregnancy as well as endogenous and exogenous estrogens on bile composition and the contractility of the gallbladder.2 Existing epidemiologic data also suggest that hormones may affect the risk of cholelithiasis. Studies in women have noted positive associations of both parity and oral-contraceptive use with cholelithiasis, although.
Original language | English |
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Pages (from-to) | 472-474 |
Number of pages | 3 |
Journal | New England Journal of Medicine |
Volume | 322 |
Issue number | 7 |
DOIs | |
State | Published - Feb 15 1990 |