TY - JOUR
T1 - The Otology Questionnaire Amsterdam
T2 - A generic patient-reported outcome measure about the severity and impact of ear complaints. Validation, reliability and responsiveness
AU - Kraak, Jeroen T.
AU - van Dam, Tom F.
AU - van Leeuwen, Lisette M.
AU - Kramer, Sophia E.
AU - Merkus, Paul
PY - 2020/7/1
Y1 - 2020/7/1
N2 - Objective: To examine the construct validity, reliability and responsiveness of the Otology Questionnaire Amsterdam (OQUA). Design: Multicentre, longitudinal study in 2 separate cohorts of patients visiting an ENT surgeon via an online survey programme. Setting: Tertiary ENT clinics. Participants: Cohort 1 consisted of patients at their first visit at an ENT outpatient clinic with an ear complaint. Cohort 2 consisted of patients who underwent surgery, with a 3-month follow-up post-surgery. Main outcome measures: Construct validity: Hypothesis testing, internal consistency and inter-item correlation. Reliability: Test-retest reliability. The construct approach was used for assessing responsiveness. Hypotheses were formulated based on the association between the OQUA and Glasgow Health Status Inventory (GHSI) or Global Rating Scale (GRS). Results: Construct validity: The correlation between the individual items in the impact domain ranged from 0.424 to 0.737. Confirmatory factor analysis showed a good fit. As expected, the OQUA impact showed strong relationships with GHSI total and general scale. Reliability: The test-retest reliability coefficient ranged from 0.541 to 0.838. Responsiveness: All hypotheses were conformed. As expected, the change score of the OQUA showed good correlation between OQUA impact and GHSI and moderate correlation between the GRS and OQUA complaints. Conclusion: The OQUA has 8 complaint domains (earache, pressure sensation, itching, tinnitus, hearing loss, ear discharge, loss of taste and dizziness) and 1 impact domain. Each domain results in one score of 0-100. The OQUA shows good results for construct validity, (test-retest) reliability and responsiveness, supporting the potential benefit for the patient with an ear complaint visiting the ENT surgeon. The extensive validation furthermore confirms a certified generic otology PROM with an impact and a complaints' part, to be used in different types of otologic interventions and patient groups.
AB - Objective: To examine the construct validity, reliability and responsiveness of the Otology Questionnaire Amsterdam (OQUA). Design: Multicentre, longitudinal study in 2 separate cohorts of patients visiting an ENT surgeon via an online survey programme. Setting: Tertiary ENT clinics. Participants: Cohort 1 consisted of patients at their first visit at an ENT outpatient clinic with an ear complaint. Cohort 2 consisted of patients who underwent surgery, with a 3-month follow-up post-surgery. Main outcome measures: Construct validity: Hypothesis testing, internal consistency and inter-item correlation. Reliability: Test-retest reliability. The construct approach was used for assessing responsiveness. Hypotheses were formulated based on the association between the OQUA and Glasgow Health Status Inventory (GHSI) or Global Rating Scale (GRS). Results: Construct validity: The correlation between the individual items in the impact domain ranged from 0.424 to 0.737. Confirmatory factor analysis showed a good fit. As expected, the OQUA impact showed strong relationships with GHSI total and general scale. Reliability: The test-retest reliability coefficient ranged from 0.541 to 0.838. Responsiveness: All hypotheses were conformed. As expected, the change score of the OQUA showed good correlation between OQUA impact and GHSI and moderate correlation between the GRS and OQUA complaints. Conclusion: The OQUA has 8 complaint domains (earache, pressure sensation, itching, tinnitus, hearing loss, ear discharge, loss of taste and dizziness) and 1 impact domain. Each domain results in one score of 0-100. The OQUA shows good results for construct validity, (test-retest) reliability and responsiveness, supporting the potential benefit for the patient with an ear complaint visiting the ENT surgeon. The extensive validation furthermore confirms a certified generic otology PROM with an impact and a complaints' part, to be used in different types of otologic interventions and patient groups.
KW - audiology
KW - chronic otitis media
KW - mouth
KW - otology
KW - sensorineural hearing loss
KW - taste
KW - tinnitus
KW - vertigo
UR - http://www.scopus.com/inward/record.url?scp=85085104168&partnerID=8YFLogxK
U2 - https://doi.org/10.1111/coa.13545
DO - https://doi.org/10.1111/coa.13545
M3 - Article
C2 - 32336029
SN - 1749-4478
VL - 45
SP - 506
EP - 516
JO - Clinical otolaryngology
JF - Clinical otolaryngology
IS - 4
ER -