Assessment of Quality-of-Life Measurement Instruments for Chronic Otitis Media: A Systematic Review Using the...

Chronic Otitis Media (COM) represents a persistent inflammatory condition of the middle ear that significantly impairs the daily functioning and psychological well-being of affected individuals. Prior research has shown that patient-reported outcome measures (PROMs) serve as essential tools for quantifying these subjective health experiences within various clinical and surgical settings. Healthcare providers rely on these standardized questionnaires to guide complex treatment decisions and monitor the long-term recovery of patients following middle ear interventions. The reliability and structural validity of many existing instruments remain poorly characterized within the specific context of adult middle ear pathology. Standardized frameworks like the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) provide a rigorous methodology for evaluating these psychometric properties. Without a systematic evaluation of these tools, the medical community risks utilizing instruments that lack the necessary sensitivity or methodological robustness to capture true patient outcomes. This absence of evidence motivated a comprehensive systematic review to determine which measurement instruments provide the most reliable data for this specific patient population.

This systematic review evaluates the psychometric measurement properties of existing quality-of-life questionnaires designed specifically for adult patients suffering from Chronic Otitis Media (COM). The investigation focuses on identifying which self-administered instruments meet the rigorous standards established by the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) protocol. Researchers sought to determine the methodological quality of studies that originally developed or validated these health-related quality-of-life (HRQoL) tools for clinical use. The analysis specifically targets instruments applied to patients aged 18 years or older to ensure developmental relevance and age-appropriate assessment. By applying the COSMIN checklist, the study intends to highlight specific deficiencies in current measurement designs that may hinder accurate data collection. The work seeks to provide a clear recommendation for the most effective PROM available for both routine clinical practice and advanced otologic research. Identifying these gaps allows for the future refinement of tools used to assess the significant burden of chronic ear disease on global health.

Investigators conducted an exhaustive electronic search across five major databases including OVID, Embase, the Cochrane Library, PubMed, and Scopus to identify relevant validation studies. The search strategy concluded on September 23, 2021, and focused exclusively on full-text articles published in the English language regarding instrument development. Inclusion criteria required that each study address the development or validation of a self-administered measurement instrument specifically for patients with Chronic Otitis Media (COM). The team utilized the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) checklist to appraise the methodological quality of each included paper. Specific psychometric properties evaluated included internal consistency, reliability, and various forms of validity as defined by the standardized COSMIN guidelines. The review process involved screening titles and abstracts before performing a detailed full-text analysis of eligible studies to ensure they met the inclusion thresholds. Data extraction focused on the performance of four specific questionnaires: ZCMEI-21-E, COMBI, COMQ-12, and the chronic ear survey, comparing their results against established quality criteria.

The Zurich Chronic Middle Ear Inventory-21 (ZCMEI-21-E) demonstrated superior performance compared to all other evaluated patient-reported outcome measures in terms of its psychometric measurement properties. Analysis of five distinct studies revealed that most existing instruments failed to meet the proposed psychometric criteria for high-quality measurement as defined by the COSMIN framework. The review identified four primary questionnaires currently in use: the ZCMEI-21-E, the Chronic Otitis Media Benefit Inventory (COMBI), the Chronic Otitis Media Questionnaire-12 (COMQ-12), and the chronic ear survey. Many of these tools require further validation to confirm their reliability and structural integrity in adult populations suffering from chronic ear conditions. The COSMIN checklist assessment highlighted significant weaknesses in the study designs used to validate several of these PROMs, particularly regarding their internal consistency. Findings indicated that the current landscape of HRQoL instruments for chronic ear conditions lacks the necessary evidence base for universal clinical adoption without further testing. The data clarifies that while multiple tools exist, their methodological foundations vary significantly in quality and require more rigorous investigative approaches.

Future research must prioritize the rigorous validation of PROMs following the established COSMIN guidelines to ensure accurate health-related quality-of-life assessments in otolaryngology. The study concludes that the ZCMEI-21-E currently represents the most reliable option for clinicians treating adult patients with chronic middle ear disease. Improving the design of validation studies is essential for enhancing the credibility of outcome data in both clinical trials and routine practice. Developers of new instruments should incorporate the COSMIN framework from the initial stages of questionnaire creation to ensure high methodological standards. Standardizing these measurement tools will facilitate better comparisons across different clinical trials and diverse patient populations globally. The researchers emphasize that current deficiencies in PROM validation could lead to inaccurate interpretations of treatment efficacy and patient satisfaction. This review serves as a foundational guide for selecting appropriate instruments in both routine clinical practice and advanced otologic research to improve patient care.