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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

Mean scores (minimum 0; maximum 4) of the 9 subscales of the modified TAHSI questionnaire: the scores of the 2 questions of each subscale per participant were averaged and then the mean of the sample was calculated. White bars: control group; grey bars: patients scheduled for tonsillectomy Error bars represent 95% confidence intervals (n.d. = no data).
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Fig4: Mean scores (minimum 0; maximum 4) of the 9 subscales of the modified TAHSI questionnaire: the scores of the 2 questions of each subscale per participant were averaged and then the mean of the sample was calculated. White bars: control group; grey bars: patients scheduled for tonsillectomy Error bars represent 95% confidence intervals (n.d. = no data).

Mentions: Criterion related validity was demonstrated with the help of receiver operating characteristic [22]. The TAHSI had a sensitivity of 80% and a specificity of 90% at a cut-off at 20, so that the indication for tonsillectomy may be made conservatively using a cut-off at 20 score points. The TAHSI score was easy to understand for the patients and filled out completely by all study participants. Consistently, a high score means a high burden of disease. All subscales revealed significantly higher scores in the tonsillectomy group (Figure 4). The additional stratification into recurrent and chronic throat infection and the additional subscales halitosis and work performance allowed identification of the patient subsets by cluster analysis (data not shown). Moreover, it allowed a more detailed description of the individual symptom profile.Figure 4


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)

Mean scores (minimum 0; maximum 4) of the 9 subscales of the modified TAHSI questionnaire: the scores of the 2 questions of each subscale per participant were averaged and then the mean of the sample was calculated. White bars: control group; grey bars: patients scheduled for tonsillectomy Error bars represent 95% confidence intervals (n.d. = no data).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Fig4: Mean scores (minimum 0; maximum 4) of the 9 subscales of the modified TAHSI questionnaire: the scores of the 2 questions of each subscale per participant were averaged and then the mean of the sample was calculated. White bars: control group; grey bars: patients scheduled for tonsillectomy Error bars represent 95% confidence intervals (n.d. = no data).
Mentions: Criterion related validity was demonstrated with the help of receiver operating characteristic [22]. The TAHSI had a sensitivity of 80% and a specificity of 90% at a cut-off at 20, so that the indication for tonsillectomy may be made conservatively using a cut-off at 20 score points. The TAHSI score was easy to understand for the patients and filled out completely by all study participants. Consistently, a high score means a high burden of disease. All subscales revealed significantly higher scores in the tonsillectomy group (Figure 4). The additional stratification into recurrent and chronic throat infection and the additional subscales halitosis and work performance allowed identification of the patient subsets by cluster analysis (data not shown). Moreover, it allowed a more detailed description of the individual symptom profile.Figure 4

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