Independent associations of circulating 25-hydroxyvitamin D and parathyroid hormone concentrations with blood pressure among Koreans: The Korea National Health and Nutrition Examination Survey (KNHANES), 2009-2010.

Although lower vitamin D and higher parathyroid hormone (PTH) concentrations have been associated with hypertension, their independent contribution to blood pressure (BP) is unclear. The independent associations of serum 25-hydroxyvitamin D (25[OH]D) and PTH levels with BP were therefore investigated. This is a population-based cross-sectional study from the Korea National Health and Nutrition Examination Surveys, which includes a total of 4,513 participants (2,019 men and 2,494 women) aged ≥ 50 years.