Cross-sectional evaluation of the relationship between vitamin D status and supplement use across levels of kidney function in adults.

ABSTRACT:

Objectives

The objective of this study was to assess vitamin D status of US non-pregnant adults using a standardised assay across 15 mL/min/1.73 m² increments of kidney function, report the use of dietary supplements containing vitamin D and assess relationships between vitamin D and markers of bone resorption.

Design

This study is a cross-sectional evaluation.

Setting

The study is from the US National Health and Nutrition Evaluation Survey in 2001-2012.

Participants

The participants were non-institutionalised, non-pregnant adults, age ≥20 years.

Primary and secondary outcome measures

The primary outcome measure was serum 25OHD evaluated using liquid chromatography-tandem mass spectroscopy traceable to international reference standards. Second

SUBMITTER: Moore LW 

PROVIDER: S-EPMC6398648 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature