@article{ref1,
title="Plasma 25-hydroxyvitamin D concentration in patients with hip fracture in Hong Kong",
journal="Gerontology",
year="1989",
author="Lau, E. M. and Woo, Jean and Swaminathan, R. and MacDonald, D. and Donnan, S. P.",
volume="35",
number="4",
pages="198-204",
abstract="The serum concentration of 25-hydroxyvitamin D level and plasma albumin-adjusted calcium, phosphate, and alkaline phosphatase levels were studied in 200 patients with hip fracture (age range 49-93 years) and 427 elderly subjects living in the community (age range 60-90 years). The mean serum 25-hydroxyvitamin D levels in controls were higher than in temperate countries, but the 25-hydroxyvitamin D concentration was significantly lower in the patients than the controls for all sex and age groups. There was little difference in albumin-adjusted calcium and alkaline phosphatase levels, but the phosphate level was higher in the patients than in the controls. None of the patients with a low 25-hydroxyvitamin D level had a blood picture suggestive of osteopathy resulting from vitamin D deficiency or frank osteomalacia. Hip fracture patients with a low 25-hydroxyvitamin D level were much less ambulant and went outdoors much less frequently than hip fracture patients with a normal vitamin D level. A low vitamin D level was a risk factor for hip fracture in Hong Kong Chinese, and may be prevented by frequent outdoor exposure.<p /><p>Language: en</p>",
language="en",
issn="0304-324X",
doi="",
url="http://dx.doi.org/"
}