The Role of Severe Vitamin D Deficiency in Predicting the Risk of Severe Exacerbation in Patients With Chronic Obstructive Pulmonary Disease.

What Was Tested

The paper reports a study of Vitamin D, K2, Magnesium and Zinc, published as an observational study.

This study aims to investigate the association between vitamin D levels and the risk of severe acute exacerbations of chronic obstructive pulmonary disease (AECOPD).

Who Took Part

The study group was 636 patients.

The age groups tagged for this paper are middle-aged adults and older adults, both men and women.

The researchers conducted a prospective observational study with 636 COPD patients admitted for exacerbations between January 2021 and December 2022.

Patients were categorized based on serum 25-hydroxyvitamin D levels: severe deficiency (<10 ng/mL), deficiency (10-20 ng/mL), insufficiency (20-30 ng/mL), or sufficiency (>30 ng/mL).

How the Study Was Run

Severe exacerbation was defined when the patient visits an emergency room or is hospitalized due to COPD exacerbation.

What Was Measured

PubMed files the paper under topics including Pulmonary Disease, Chronic Obstructive, Vitamin D Deficiency, Disease Progression, Vitamin D, Risk Factors, Risk Assessment and Biomarkers.

The authors tagged it with the keywords COPD and acute exacerbations.

What This Means in Plain Language

This is an observational study of Vitamin D, K2, Magnesium and Zinc in 636 patients.

With several hundred people or more, it is a fairly large study for this kind of research.

Its findings take up roughly 4 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2025 (International journal of chronic obstructive pulmonary disease), a journal based in New Zealand.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.