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Comparing dietary determinants of serum vitamin D status among African-Americans and Caucasians

Open Journal of Epidemiology 2012年第1期2卷 14-21页

作者： Sameer Murali Lenore Arab Alfonso Ang Casey Nelson katherine wessling-perry Patricia Jardack Ronald L. Horst General Internal Medicine David Geffen School of Medicine at UCLA Los Angeles USA

African-Americans (AAs) maintain a high prevalence of vitamin D insufficiency compared to Caucasians. The relationship between dietary sources of vitamin D and serum 25-hydroxyvitamin D (25(OH)D) among AAs remains poorly understood. This research examines the dietary determinants of 25(OH)D levels in AAs and Caucasians, controlling for demographic characteristics. 121 Caucasians and 119 AAs participated in a biomarker based study, comparing the correlation of serum 25(OH) D with dietary sources of vitamin D. Diet was assessed by multiple 24-hour (24-hr) recall and Food Frequency Questionnaire (FFQ). Parallel multiple linear and logistic regression models stratified by race were then used to regress 25(OH)D level and sufficiency (25(OH)D > 20 ng/mL) on major dietary sources of vitamin D—multivitamins (MV), milk, and fish—controlling for age, gender, and BMI. Results show that AAs are sensitive to the method of dietary assessment, with multiple 24 hr recall demonstrating highest correlation (0.4) with 25 (OH)D levels. MV’s association with 25(OH)D levels was highest in both groups, 25% higher in AAs vs. Caucasians (8.6 vs. 6.5 ng/mL per 400 IU). Milk’s impact on serum was similar in both groups but fish was only significant among Caucasians. MV consumption significantly increased odds of vitamin D sufficiency in both groups. Given the high prevalence of vitamin D insufficiency and the strong contribution as compared to milk or fish, MV supplementation is recommended. Additionally, future studies aimed at measuring vitamin D intake should consider the use of multiple 24 hr recall instead of a single measure of FFQ or 24 hr recall since the multiple 24 hr recalls have a stronger correlation to serum 25(OH)D.

关键词： Vitamin D Dietary Determinants Fish Vitamin Supplements

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Abnormalities of uterine cervix in women with inflammatory bowel disease

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World Journal of Gastroenterology 2006年第38期12卷 6167-6171页

作者： Jyoti Bhatia Jason Bratcher Burton Korelitz katherine Vakher Shlomo Mannor Maria Shevchuk Gworgia Panagopoulos Adam Ofer Ecaterina Tamas Panayota Kotsali Oana Vele Division of Gastroenterology Department of Medicine and Departments of Obstetrics and Gynecology and Pathology Lenox Hill Hospital and New York University School of Medicine New York United States

AIM： To evaluate the prevalence of abnormalities of the uterine cervix in women with inflammatory bowel disease （IBD） when compared to healthy controls. METHODS： One hundred and sixteen patients with IBD [64 with Crohn＇s disease （CD） and 52 with ulcerative colitis （UC）] were matched to 116 healthy controls by age （＋/- 2 years） at the time of most recent papanicolaou （Pap） smear. Data collected consisted of age, race, marital status, number of pregnancies, abortions/miscarriages, duration and severity of IBD, Pap smear results within five years of enrollment, and treatment with immunosuppressive drugs. Pap smear results were categorized as normal or abnormal including atypical squamous cells of undetermined significance （ASCUS）, low-grade squamous intraepithelial lesion （LGSIL）, and high-grade squamous intraepithelial lesion （HGSIL）. RESULTS： The median age at the time of Pap smear was 46 （range： 17-74） years for the IBD group and matched controls （range： 19-72 years）. There were more Caucasian subjects than other ethnicities in the IBD patient group （P = 0.025）, as well as fewer abortions （P = 0.008）, but there was no significant difference regarding marital status. Eighteen percent of IBD patients had abnormal Pap smears compared to 5% of controls （P = 0.004）. Subgroup analysis of the IBD patients revealed no significant differences between CD and UC patients in age, ethnicity, marital status, number of abortions, disease severity, family history of IBD, or disease duration. No significant difference was observed in the number of abnormal Pap smears or the use of immunosuppressive medications between CD and UC patients CP = 0.793）. No definitive observation could be made regarding HPV status, as this was not routinely investigated during the timeframe of our study. CONCLUSION： Diagnosis of IBD in women is related to an increased risk of abnormal Pap smear, while type of IBD and exposure to immunosuppressive medications are not. This has significant implicatio

关键词： Inflammatory bowel disease Ulcerative colitis Crohn's disease Cervical cancer Pap smear

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