---
title: "25-Hydroxyvitamin D Sufficiency Linked to Lower Atelectasis Prevalence in CVID Patients"
id: "pubmed-42758666"
canonical_url: "https://medichelpline.com/clinical-feed/pubmed-42758666"
content_type: "clinical_feed_article"
specialty: "Critical Care"
source_name: "PubMed / NCBI"
source_url: "https://pubmed.ncbi.nlm.nih.gov/42758666/"
doi: "10.12659/MSM.953313"
published_at: "2026-09-18T00:00:00.000Z"
evidence_level: "Journal Article"
license: "CC-BY-NC-4.0 / Informational Use"
---
# 25-Hydroxyvitamin D Sufficiency Linked to Lower Atelectasis Prevalence in CVID Patients
## Provenance & Clinical Metadata
- **Canonical URL:** https://medichelpline.com/clinical-feed/pubmed-42758666
- **Specialty:** [Critical Care](https://medichelpline.com/clinical-feed/critical-care.md)
- **Primary Source:** PubMed / NCBI
- **Source URL:** [Original Journal Publication](https://pubmed.ncbi.nlm.nih.gov/42758666/)
- **DOI:** [10.12659/MSM.953313](https://doi.org/10.12659%2FMSM.953313)
- **Published At:** 2026-09-18T00:00:00.000Z
- **Evidence Rating:** Journal Article
## Executive GIST (TL;DR)
- This retrospective cross-sectional study evaluated the relationship between serum **25-hydroxyvitamin D (25[OH]D)** status and pulmonary manifestations in adults with **common variable immunodeficiency (CVID)**. - Forty-eight adult CVID patients were stratified by serum 25(OH)D: <30 ng/mL (insufficient) versus ≥30 ng/mL (sufficient). - Pulmonary outcomes extracted from medical records included **atelectasis**, bronchiectasis, recurrent pneumonia, and chronic obstructive pulmonary disease (COPD). - Of 48 patients, 35 (73%) had 25(OH)D concentrations below 30 ng/mL. - Atelectasis occurred more frequently in the insufficient group: 15 of 35 patients (43%) versus fewer in the sufficient group; the association yielded an odds ratio of 0.12 (95% CI, 0.01–0.97) and P=0.02. - No statistically significant associations were found between 25(OH)D status and bronchiectasis (63% vs 46%; P=0.53), recurrent pneumonia (91% vs 84%; P=0.49), or COPD (3% vs 8%; P=0.46). - Exploratory longitudinal imaging review and descriptive Kaplan-Meier curves were performed for atelectasis-free disease duration; Kaplan-Meier curves did not show a clear separation between groups. - Authors emphasize this is a cross-sectional association that does not establish causality and recommend prospective studies to further evaluate the relationship between **25(OH)D** status and atelectasis in CVID.
## Clinical Analysis & Structured Key Points
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Affiliations Expand ### Affiliations * 1 Division of Clinical Immunology and Allergy, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil. * 2 Institute for Investigation in Immunology, National Institute of Science and Technology (iii-INCT), University of São Paulo, São Paulo, SP, Brazil. * PMID: **42758666** * DOI: [ 10.12659/MSM.953313 ](https://doi.org/10.12659/msm.953313) Item in Clipboard # 25-Hydroxyvitamin D Sufficiency Is Associated With Reduced Atelectasis in Common Variable Immunodeficiency: A Cross-Sectional Study Carla Silveira et al. Med Sci Monit. 2026. Show details Display options Display options Format Abstract PubMed PMID Med Sci Monit Actions * [ Search in PubMed ](https://pubmed.ncbi.nlm.nih.gov/?term=%22Med+Sci+Monit%22%5Bjour%5D&sort=date&sort_order=desc) * [ Search in NLM Catalog ](https://www.ncbi.nlm.nih.gov/nlmcatalog?term=%22Med+Sci+Monit%22%5BTitle+Abbreviation%5D) * [ Add to Search ](https://pubmed.ncbi.nlm.nih.gov/42758666/) . 2026 Sep 18:32:e953313. doi: 10.12659/MSM.953313. ### Authors [Carla Silveira](https://pubmed.ncbi.nlm.nih.gov/?term=Silveira+C&cauthor_id=42758666)[ 1 ](https://pubmed.ncbi.nlm.nih.gov/42758666/#short-view-affiliation-1 "Division of Clinical Immunology and Allergy, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil."), [Myrthes Toledo Barros](https://pubmed.ncbi.nlm.nih.gov/?term=Barros+MT&cauthor_id=42758666)[ 1 ](https://pubmed.ncbi.nlm.nih.gov/42758666/#short-view-affiliation-1 "Division of Clinical Immunology and Allergy, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil."), [Érica Coutinho Martins](https://pubmed.ncbi.nlm.nih.gov/?term=Coutinho+Martins+%C3%89&cauthor_id=42758666)[ 1 ](https://pubmed.ncbi.nlm.nih.gov/42758666/#short-view-affiliation-1 "Division of Clinical Immunology and Allergy, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil."), [Octávio Grecco](https://pubmed.ncbi.nlm.nih.gov/?term=Grecco+O&cauthor_id=42758666)[ 1 ](https://pubmed.ncbi.nlm.nih.gov/42758666/#short-view-affiliation-1 "Division of Clinical Immunology and Allergy, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil."), [Cristina Kokron](https://pubmed.ncbi.nlm.nih.gov/?term=Kokron+C&cauthor_id=42758666)[ 1 ](https://pubmed.ncbi.nlm.nih.gov/42758666/#short-view-affiliation-1 "Division of Clinical Immunology and Allergy, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil.")[ 2 ](https://pubmed.ncbi.nlm.nih.gov/42758666/#short-view-affiliation-2 "Institute for Investigation in Immunology, National Institute of Science and Technology \(iii-INCT\), University of São Paulo, São Paulo, SP, Brazil."), [Jorge Kalil](https://pubmed.ncbi.nlm.nih.gov/?term=Kalil+J&cauthor_id=42758666)[ 1 ](https://pubmed.ncbi.nlm.nih.gov/42758666/#short-view-affiliation-1 "Division of Clinical Immunology and Allergy, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil.")[ 2 ](https://pubmed.ncbi.nlm.nih.gov/42758666/#short-view-affiliation-2 "Institute for Investigation in Immunology, National Institute of Science and Technology \(iii-INCT\), University of São Paulo, São Paulo, SP, Brazil.") ### Affiliations * 1 Division of Clinical Immunology and Allergy, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil. * 2 Institute for Investigation in Immunology, National Institute of Science and Technology (iii-INCT), University of São Paulo, São Paulo, SP, Brazil. * PMID: **42758666** * DOI: [ 10.12659/MSM.953313 ](https://doi.org/10.12659/msm.953313) Item in Clipboard Cite Display options Display options Format Abstract PubMed PMID ## Abstract BACKGROUND Common variable immunodeficiency (CVID) is an inborn error of immunity characterized by impaired antibody production, poor vaccine responses, and reduced serum immunoglobulin levels, resulting in respiratory manifestations that can progress to pulmonary complications. Although vitamin D has been associated with pulmonary outcomes in other populations, the association between serum 25-hydroxyvitamin D [25(OH)D] status and pulmonary manifestations, particularly atelectasis, in CVID remains unclear. MATERIAL AND METHODS We conducted a retrospective cross-sectional study of 48 adult patients with CVID stratified by serum 25(OH)D concentration (<30 ng/mL [insufficient] vs ≥30 ng/mL [sufficient]). Pulmonary outcomes (atelectasis, bronchiectasis, recurrent pneumonia, and chronic obstructive pulmonary disease [COPD]) were obtained from medical records. Associations were assessed via Fisher's exact test. Exploratory analyses included a longitudinal imaging review and descriptive Kaplan-Meier curves illustrating atelectasis-free disease duration by baseline 25(OH)D status. RESULTS Among 48 patients, 35 (73%) had 25(OH)D concentrations below 30 ng/mL. Atelectasis was more frequent in the insufficient group (15/35; 43%) (odds ratio=0.12; 95% confidence interval, 0.01-0.97; P=0.02). No significant associations were observed for bronchiectasis (63% vs 46%; P=0.53), recurrent pneumonia (91% vs 84%; P=0.49), or COPD (3% vs 8%; P=0.46). Kaplan-Meier curves did not show an apparent separation between groups. CONCLUSIONS Serum 25(OH)D sufficiency was associated with lower atelectasis prevalence in patients with CVID. This finding reflects a cross-sectional association and does not establish causality; it supports a potential link between 25(OH)D status and atelectasis. Prospective studies are needed to further evaluate this relationship. 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