Allan R. Glass, MD
To the Editor: The recent article by Ding and colleagues (1) contains the statement "a difference in Cortisol levels between amenorrheic and eumenorrheic athletes . . . has not been shown." In fact, such a difference in serum Cortisol levels between amenorrheic and eumenorrheic runners participating in the 1984 U.S. Olympic women's marathon trials has been previously reported by Deuster and colleagues (2). In addition, a study (3) cited by Ding and colleagues included data showing that resting serum Cortisol levels were significantly higher (P < 0.01) in amenorrheic than eumenorrheic runners when findings were analyzed by Student t-test, although
Glass AR. Serum Cortisol Levels in Exercise-Associated Amenorrhea. Ann Intern Med. ;109:510–511. doi: 10.7326/0003-4819-109-6-510
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Published: Ann Intern Med. 1988;109(6):510-511.
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