Missed Opportunities to Diagnose Common Variable Immunodeficiency: a Population-Based Case-Control Study Identifying
Christina Dahl1, Inge Petersen2, Frederik V Ilkjær2
1Department of Infectious Diseases, Odense University Hospital, J. B. Winsløws Vej 4, Odense, Denmark. ch-cd@hotmail.dk.
Journal of Clinical Immunology
|September 28, 2023
Summary
Diagnosing common variable immunodeficiency (CVID) earlier is crucial. Patients with specific conditions, particularly respiratory infections, are at higher risk for CVID, suggesting targeted screening can improve outcomes.
Area of Science:
- Immunology
- Clinical Medicine
- Epidemiology
Background:
- Delayed diagnosis of common variable immunodeficiency (CVID) presents a significant clinical challenge.
- Identifying indicator conditions can facilitate earlier CVID diagnosis and intervention.
Purpose of the Study:
- To investigate if specific diagnoses preceding CVID can serve as indicators for earlier CVID detection.
- To assess the association between various hospital-diagnosed conditions and the subsequent diagnosis of CVID.
Main Methods:
- A nested case-control study design was employed in Denmark (1999-2013).
- 128 CVID cases and 640 matched controls were analyzed using hospital diagnosis data from the preceding five years.
- Conditional logistic regression was used to calculate odds ratios (OR) for disease associations with CVID.
Main Results:
- CVID cases had four times more hospital contacts in the five years prior to diagnosis compared to controls.
- Diagnoses in 18 major disease categories were significantly associated with subsequent CVID.
- Lower respiratory tract infections (OR: 29.9) and lung diseases (OR: 35.1) showed the strongest associations with CVID.
Conclusions:
- Specific diseases, especially respiratory conditions, are strong indicators for CVID.
- Targeted screening in patients with these indicator diseases may enable earlier CVID diagnosis.
- Earlier diagnosis and treatment can potentially reduce CVID-related morbidity and mortality.
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