VITAMIN-D DEFICIENCY IN HOMEBOUND ELDERLY PERSONS
VITAMIN-D DEFICIENCY IN HOMEBOUND ELDERLY PERSONS
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DOI:
10.1001/jama.274.21.1683
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发表时间:
1995-12-06
影响因子:
120.7
通讯作者:
TOBIN, JD
中科院分区:
文献类型:
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作者:
GLOTH, FM;GUNDBERG, CM;TOBIN, JD
Objective.-To assess the vitamin D status in homebound, community-dwelling elderly persons; sunlight-deprived elderly nursing home residents; and healthy, ambulatory elderly persons.Design.-A cohort analytic study.Participants.-Of 244 subjects at least 65 years old, 116 subjects (85 women and 31 men) had been confined indoors for at least 6 months, either in private dwellings in the community (the Hopkins Elder Housecall Program) or in a teaching nursing home (The Johns Hopkins Geriatrics Center). The 128 control subjects, a healthy ambulatory group, came from the Baltimore Longitudinal Study on Aging. All subjects were free of diseases or medications that might interfere with their vitamin D status.Main Outcome measures.-Serum levels of 25-hydroxyvitamin D (25-OHD) and 1,25-dihydroxyvitamin D (1,25-[OH]D-2) were measured in all subjects. In a subgroup of 80 subjects, serum levels of intact parathyroid hormone (PTH), ionized calcium, and osteocalcin and intake of vitamin D (through 3-day food records) were assessed. A randomly selected cohort of sunlight-deprived subjects also had serum levels of vitamin D binding protein measured.Results.-In sunlight-deprived subjects overall, the mean 25-OHD level was 30 nmol/L (12 ng/mL) (range,