Serum vitamin D levels in older adults with and without dyslipidemia: A comparison using baseline data from the Birjand Longitudinal Aging Study (BLAS)

Abstract

Summary: Background & Aims: Nowadays, research on extraskeletal effects of Vitamin D on human health is growing This study aimed to Serum vitamin D levels measurement in older adults with and without dyslipidemia: a comparison using baseline data from the Birjand Longitudinal Aging Study (BLAS). Methods: This cross-sectional study included 420 elderly people over 60 years old divided into in two equal groups with and without dyslipidemia. Data were drawn from the first phase of Birjand Longitudinal Aging Study (BLAS). A questionnaire containing demographic information and Mini nutritional assessment (MNA) was completed through interviews. Body mass index (BMI) was calculated, and after 12 hours of fasting, 5 mL of venous blood was taken to measure the serum levels of 25(OH) D and lipid profile. Results: Among the elderly, 37.3%, 33.3% and 29.3% had sufficient, insufficient and deficient Vitamin D levels, respectively. A significant difference in triglyceride levels was observed between the two groups of elderly individuals with insufficient and deficient Vitamin D levels (P=0.011). Multiple logistic regression showed that an increase in the atherogenic index of plasma (AIP) (P = 0.005, OR = 18.46) and BMI (P = 0.001, OR = 18.46) significantly increased the odds of dyslipidemia. Conclusions: Vitamin D deficiency or insufficient was common among the elderly and was associated with elevated serum triglyceride levels.

Keywords

• Elderly people
• Body mass index
• Lipid metabolism disorders
• Mini nutritional assessment
• Triglyceride
• Vitamin D