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Journal Article

[Interobserver reliability of a portable tympanometer, the MicroTymp]

M. Labrecque, L. P. Dostaler, H. Dumont, G. Huard and L. Laflamme
CMAJ February 15, 1993 148 (4) 559-564;
M. Labrecque
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L. P. Dostaler
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H. Dumont
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G. Huard
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L. Laflamme
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Abstract

OBJECTIVE: To determine the interobserver reliability of tympanograms obtained with the MicroTymp, a portable tympanometer. SETTING: Family medicine teaching unit in a tertiary care hospital. PATIENTS: Thirty-three patients who presented to the ear, nose and throat clinic in August 1990 for an ear problem. INTERVENTION: Three residents in family medicine independently attempted to record with the MicroTymp one tympanogram for the 66 ears. We excluded the results for seven ears for which tympanograms could not be obtained. MAIN OUTCOME MEASURE: Using objective criteria, two family physicians and two residents in family medicine independently classified the 177 tympanograms into five categories (normal, possible effusion, possible perforation, possible tympano-ossicular dysfunction and unclassifiable). Reliability was estimated by means of the kappa (kappa) coefficient on 161 tympanograms from 59 ears for which the interpretation of the three tympanograms agreed. MAIN RESULTS: The interpretation of the three tympanograms agreed for 34 of the 59 ears (0.58) (kappa = 0.52, 95% confidence limits 0.45 and 0.59). There was no significant difference in interobserver reliability between pairs of observers or between symptomatic and asymptomatic ears. CONCLUSIONS: The interobserver reliability of the MicroTymp is moderate. The tympanograms obtained with the instrument should be interpreted in the context of the clinical findings.

  • Copyright © 1993 by Canadian Medical Association
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CMAJ
Vol. 148, Issue 4
15 Feb 1993
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[Interobserver reliability of a portable tympanometer, the MicroTymp]
M. Labrecque, L. P. Dostaler, H. Dumont, G. Huard, L. Laflamme
CMAJ Feb 1993, 148 (4) 559-564;

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[Interobserver reliability of a portable tympanometer, the MicroTymp]
M. Labrecque, L. P. Dostaler, H. Dumont, G. Huard, L. Laflamme
CMAJ Feb 1993, 148 (4) 559-564;
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