Total Serum Calcium Reference Intervals in Postmenopausal Outpatients
作者:
Milenko J. Tanasijevic,
Elizabeth Ginsburg,
Donald R. Wybenga,
Robert L. Barbieri,
James W. Winkelman,
期刊:
Gynecologic and Obstetric Investigation
(Karger Available online 1995)
卷期:
Volume 39,
issue 4
页码: 266-270
ISSN:0378-7346
年代: 1995
DOI:10.1159/000292423
出版商: S. Karger AG
关键词: Calcium;Reference intervals;Postmenopausal women
数据来源: Karger
摘要:
The distribution of values of serum calcium has been studied in the following four outpatient populations: premenopausal (n = 411) and postmenopausal women (n = 399), men less than 50 years old (n = 365) and men over 55 years old (n = 361). Their respective average total serum calcium values (mg/dl) were 9.42,9.56,9.53, and 9.45. The reference intervals derived for total serum calcium (mg/dl) were 8.4–10.3 (premenopausal women), 8.4–10.7 (postmenopausal women), 8.6–10.5 (men less than 50 years old), and 8.4–10.4 (men over 55 years old). Increased total serum calcium levels were observed in the postmenopausal women as compared with both premenopausal women (p < 0.001) and with men over 55 years old (p < 0.003). Eight percent of the values obtained in postmenopausal women were above the current reference interval, as compared to 1.7% in premenopausal women, and 3.3% in men over 55 years old. In conclusion, the age-related increase in total serum calcium in postmenopausal female outpatients warrants a higher upper limit of the reference interval for this subpopulation.
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