Publication Detail

Citation : Gangcuangco LM, Chow DC, Liang CY, Nakamoto BK, Umaki TM, Kallianpur KJ, Shikuma CM. (2013)
Predictors of 25-hydroxyvitamin D levels in HIV-infected patients in Hawai'i.
Hawaii J Med Public Health 72(6):197-201.
Abstract : HIV-infected individuals are at increased risk for several metabolic diseases, including low 25-hydroxyvitamin D [25(OH)D]. Data on the prevalence and risk factors for low 25(OH)D in HIV patients living in the tropics is scarce. Patients â?¥ 40 years old on stable antiretroviral therapy were enrolled from March 2009 to July 2011 in Hawai'i (latitude 21�° North). Chemiluminescent immunoassay (DiaSorin) was used to determine plasma 25(OH)D levels. Patients were grouped by whether 25(OH)D was collected in summer (May 1 - September 30) or winter (October 1 - April 30). Of 158 patients enrolled, 88 (56%) and 70 (44%) were enrolled in winter and summer, respectively. There were 57.6% Caucasians and 88% men. Over-all median (quartile1, quartile3) age was 51 (46, 57) years and median 25(OH)D was 32.4 (24.0, 41.0) ng/ml. Forty-three percent (n=68) had 25(OH)D<30.0 ng/ml. Median 25(OH)D levels were 29.6 (22.0, 38.0) ng/ml in winter and 36.9 (25.0, 44.5) ng/ml in summer (P = .01). Median body mass index (BMI) of winter patients was significantly higher (P = .03). By simple linear regression, log-transformed 25(OH)D was significantly associated with winter visit (�² = -.0737, P = .01), ethnicity (Caucasian versus non-Caucasian, �² = .1194, P < .01), BMI (�² = -.0111, P < .01) and current use of zidovudine (�² = -.1233, P = .03). In multiple linear regression, only Caucasian ethnicity (�² = .1004, P < .01) and BMI (�² = -.0078, P = .02) retained statistical significance. Seasonal variation in 25(OH)D was observed but the significance of winter visit was not preserved in the final multivariate model. Ethnicity and BMI were better predictors of 25(OH)D levels than season in the tropics.
URL Link : http://www.ncbi.nlm.nih.gov/pubmed/23795329
PMID : 23795329
PMCID : PMC3689502
News
02 February 2018:
The Mary Kay Foundation - GRANT APPLICATION ANNOUNCEMENT

The Mary Kay Foundation

GRANT APPLICATION ANNOUNCEMENT

Applications are accepted from
November 2, 2017 through February 2, 2018

DEADLINE is …

08 December 2017:
F31 Award Submission Alert

The Ruth L. Kirschstein National Research Service Award (NRSA) Individual Predoctoral Fellowship to Promote Diversity in Health-Related Research (F31 …

06 November 2017:
NRMN Grant Writing Coaching Group Applications

Are you preparing a proposal to submit to NIH in the upcoming months? Do you want to be coached on effective writing techniques from experienced grant…


View more news...


Seminars & Events
16 June 2017, 9am - 10:30am:
HEALTH & MEDICINE SEMINAR - Kukulu Ola Hou
02 June 2017, 8:15am - 4:10pm:
PROMOTING EXCELLENCE IN CLINICAL RESEARCH
02 November 2016, 9am:
RMATRIX-II Collaboration Pilot Projects Program 2017 -- Informational Webinar

View more seminars & events...

Supported by a grant from the National Institute on Minority Health and Health Disparities (U54MD007584), National Institutes of Health.