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Evaluation of a German version of the tonsil and adenoid health status instrument.

Steinbichler T, Bender B, Blassnigg E, Riechelmann H - J Otolaryngol Head Neck Surg (2014)

Bottom Line: Cronbach's alpha for all questions was 0.92.Test- retest intraclass correlation coefficient was 0.89 (95% confidence interval 0.80-0.94 p < 0.001).Mean score for the healthy individuals was 7.0 (95% confidence interval 4.2-9.7).

View Article: PubMed Central - PubMed

Affiliation: Department of Otorhinolaryngology, Medical University of Innsbruck, Anichstr 35, A-6020 Innsbruck, Austria.

ABSTRACT

Background: To create and validate a German version of the Tonsil and Adenoid Health Status Instrument (TAHSI) for evaluation of tonsillectomy outcome in adult patients with chronic or recurrent tonsillitis.

Subjects and methods: 46 healthy volunteers were assessed twice in a 6 week interval with the TAHSI questionnaire. Their results were compared with 45 patients suffering from chronic tonsillitis before tonsillectomy and 6 months following surgery. For internal consistency, Cronbach's alpha was calculated; to identify normal score values, the optimum cutoff between healthy and diseased individuals was identified with receiver operating characteristic analysis; and responsiveness was assessed using Guyatt's Responsiveness Index (GRI).

Results: Cronbach's alpha for all questions was 0.92. Test- retest intraclass correlation coefficient was 0.89 (95% confidence interval 0.80-0.94 p < 0.001). Mean score for the healthy individuals was 7.0 (95% confidence interval 4.2-9.7). The optimum cut off score between healthy and diseased was 20 with a sensitivity of 80% and a specificity of 90% to differentiate controls from tonsillectomy patients.

Conclusion: The TAHSI performed well in this validation tests and is considered a favorable instrument to evaluate the effectiveness of tonsillectomy in adults with chronic or recurrent tonsillitis.

No MeSH data available.


Related in: MedlinePlus

Receiver operating characteristic (ROC) curve: receiver operating characteristic (ROC) curve illustrating the true positive rate (sensitivity; y-axis) vs. the false positive rate (1-specificity; x-axis) at increasing TAHSI-score values. The area under the ROC curve was 0.94 (95% CI 0.89 to 0.99; p < 0.001). At a cut-off score of 20 (circle), sensitivity to detect members of the tonsillectomy group with chronic or recurrent tonsillitis was 80%, the specificity 90%.
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Fig2: Receiver operating characteristic (ROC) curve: receiver operating characteristic (ROC) curve illustrating the true positive rate (sensitivity; y-axis) vs. the false positive rate (1-specificity; x-axis) at increasing TAHSI-score values. The area under the ROC curve was 0.94 (95% CI 0.89 to 0.99; p < 0.001). At a cut-off score of 20 (circle), sensitivity to detect members of the tonsillectomy group with chronic or recurrent tonsillitis was 80%, the specificity 90%.

Mentions: The mean TAHSI-score in the tonsillectomy group before surgery was 31.1+/−11.3, which makes approximately 40% of the maximum achievable score. The mean scores between controls and patients before tonsillectomy differed significantly (p < 0.001) (Figure 1). The power of the TAHSI score to discriminate healthy individuals from patients with chronic or recurrent tonsillitis scheduled for tonsillectomy was assessed by ROC analysis. The area under the ROC curve was 0.94 (95% CI 0.89 to 0.99; p < 0.001). At a cut-off score of 20, sensitivity to detect members of the tonsillectomy group with chronic or recurrent tonsillitis was 80%, the specificity 90% (Figure 2). All 9 subscales of the TAHSI were significantly higher in the tonsillectomy group when compared with the controls. Data for nocturnal breathing were not available in the tonsillectomy group. Health care utilization scored highest in the tonsillectomy group.Figure 1


Evaluation of a German version of the tonsil and adenoid health status instrument.

Steinbichler T, Bender B, Blassnigg E, Riechelmann H - J Otolaryngol Head Neck Surg (2014)

Receiver operating characteristic (ROC) curve: receiver operating characteristic (ROC) curve illustrating the true positive rate (sensitivity; y-axis) vs. the false positive rate (1-specificity; x-axis) at increasing TAHSI-score values. The area under the ROC curve was 0.94 (95% CI 0.89 to 0.99; p < 0.001). At a cut-off score of 20 (circle), sensitivity to detect members of the tonsillectomy group with chronic or recurrent tonsillitis was 80%, the specificity 90%.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4232686&req=5

Fig2: Receiver operating characteristic (ROC) curve: receiver operating characteristic (ROC) curve illustrating the true positive rate (sensitivity; y-axis) vs. the false positive rate (1-specificity; x-axis) at increasing TAHSI-score values. The area under the ROC curve was 0.94 (95% CI 0.89 to 0.99; p < 0.001). At a cut-off score of 20 (circle), sensitivity to detect members of the tonsillectomy group with chronic or recurrent tonsillitis was 80%, the specificity 90%.
Mentions: The mean TAHSI-score in the tonsillectomy group before surgery was 31.1+/−11.3, which makes approximately 40% of the maximum achievable score. The mean scores between controls and patients before tonsillectomy differed significantly (p < 0.001) (Figure 1). The power of the TAHSI score to discriminate healthy individuals from patients with chronic or recurrent tonsillitis scheduled for tonsillectomy was assessed by ROC analysis. The area under the ROC curve was 0.94 (95% CI 0.89 to 0.99; p < 0.001). At a cut-off score of 20, sensitivity to detect members of the tonsillectomy group with chronic or recurrent tonsillitis was 80%, the specificity 90% (Figure 2). All 9 subscales of the TAHSI were significantly higher in the tonsillectomy group when compared with the controls. Data for nocturnal breathing were not available in the tonsillectomy group. Health care utilization scored highest in the tonsillectomy group.Figure 1

Bottom Line: Cronbach's alpha for all questions was 0.92.Test- retest intraclass correlation coefficient was 0.89 (95% confidence interval 0.80-0.94 p < 0.001).Mean score for the healthy individuals was 7.0 (95% confidence interval 4.2-9.7).

View Article: PubMed Central - PubMed

Affiliation: Department of Otorhinolaryngology, Medical University of Innsbruck, Anichstr 35, A-6020 Innsbruck, Austria.

ABSTRACT

Background: To create and validate a German version of the Tonsil and Adenoid Health Status Instrument (TAHSI) for evaluation of tonsillectomy outcome in adult patients with chronic or recurrent tonsillitis.

Subjects and methods: 46 healthy volunteers were assessed twice in a 6 week interval with the TAHSI questionnaire. Their results were compared with 45 patients suffering from chronic tonsillitis before tonsillectomy and 6 months following surgery. For internal consistency, Cronbach's alpha was calculated; to identify normal score values, the optimum cutoff between healthy and diseased individuals was identified with receiver operating characteristic analysis; and responsiveness was assessed using Guyatt's Responsiveness Index (GRI).

Results: Cronbach's alpha for all questions was 0.92. Test- retest intraclass correlation coefficient was 0.89 (95% confidence interval 0.80-0.94 p < 0.001). Mean score for the healthy individuals was 7.0 (95% confidence interval 4.2-9.7). The optimum cut off score between healthy and diseased was 20 with a sensitivity of 80% and a specificity of 90% to differentiate controls from tonsillectomy patients.

Conclusion: The TAHSI performed well in this validation tests and is considered a favorable instrument to evaluate the effectiveness of tonsillectomy in adults with chronic or recurrent tonsillitis.

No MeSH data available.


Related in: MedlinePlus