No statistically significant differences were found in the emotions or social interaction domains.. Analysis of the Sensitivity to Change. According to our results, the Spanish version of the QSQ presents adequate internal consistency, validity and repeatability for its use in patients with SAHS. Likewise, this questionnaire showed sensitivity to change produced by CPAP treatment for the domains referring to SAHS symptoms, both diurnal as well as nocturnal.. The internal consistency of the tool was high, and the coefficients obtained in each of the domains surpassed 0.
In the construct validity analysis, we observed a similar structure in three of the five domains, although without finding considerable similarities in the emotion and social interaction domains. Using a factorial analysis, the study showed, after analyzing the sediment chart, that the selection of five factors was similar to the distribution of the original questionnaire in three of them. These factors 1, 4 and 5 explained In the first factor, referring to daytime symptoms, 7 of the 10 items of this domain were included. The third factor included both items of the emotions domain as well as items of the social interaction domain.
The fourth was mainly made up of items corresponding to nighttime symptoms. All the items that were grouped in the fifth factor corresponded with the daytime sleepiness domain. Therefore, there is a good correlation between factors 1, 4 and 5 with the domains of daytime symptoms, nighttime symptoms and daytime sleepiness, respectively, without there being a clear correlation of factors 2 and 3 with the emotions and social interaction domains..
Upon studying the concurrent validity of the test, we observed that there was a strong correlation between the daytime sleepiness domain of the QSQ and the Epworth test, as well as between the daytime symptoms domain of the QSQ and physical function, vitality, social function and the physical role of SF The nighttime symptoms domain likewise presented a moderate correlation with the previously mentioned parameters and with the score of the FOSQ.
This does not surprise us because, as we have commented earlier, the items corresponding with these domains are grouped similarly to the original questionnaire, and this has demonstrated similar correlations with the mentioned questionnaires. Likewise, the daytime symptoms domain of the original QSQ and those referring to the physical function, vitality and physical role of the SF were 0. These values were very similar to those found in our study, which were 0. In the same manner as in the original questionnaire, the emotions and social interaction domains presented a strong correlation with their homologous domains of the SF questionnaire, with correlation coefficients of 0.
Regarding the predictive validity of the test, as we have shown in our study there is an observed worsening of the HRQL in patients who present severe SAHS compared with those who present either a mild or moderate degree of disease. This deterioration in the quality of life was observed in all the domains of the questionnaire, except in the social interaction domain. The interpretation of this situation could be based on the fact that the score obtained in the social interaction domain can often be influenced by other factors that also influence quality of life, such as depression, invalidating physical problems or even adverse episodes that alter the daily life of patients..
Retest reliability was studied using the intraclass correlation coefficient of each of the domains, which demonstrated either moderate or good agreement in each..
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In the sensitivity to change analysis after CPAP treatment, statistically significant differences were observed in the daytime and nighttime symptoms domains while nearly clinically significant in the daytime sleepiness domain. Nevertheless, the clinical significance that the original publication stated was not reached. Therefore, the possibility for significant clinical improvement in the original group after CPAP was greater than that of the series of the present study. Thus, our results support the use of the QSQ survey after the application of CPAP treatment, especially in the analysis of the changes in patient symptoms..
As for the limitations of the study, the following should be mentioned: Lastly, no information was collected about the side effects of the CPAP treatment.. Please cite this article as: Copyright of the English version of the Quebec Sleep Questionnaire: Previous article Next article.
April Pages This item has received. Show more Show less. Results One hundred and twenty-one patients were included in the study mean age: Health-related quality of life. Resultados Se incluyeron pacientes edad media: Calidad de vida relacionada con la salud. Material and methods Study Sample Ours is a multi-center, prospective study that lasted for one year. Excluded from the study were all those patients who presented significant unstable comorbidities that could influence the study conclusions, patients with important cognitive disorders and those who refused to form part of the study or were not able to complete the questionnaires.
Data Collection In accordance with the study protocol, data were collected from all the patients for the following variables: Prior to the study, all the patients signed an informed consent form and the study was approved by the ethics committees of the participating centers. Last of all, at a final visit that was at least 10 weeks after the previous visit, 31 patients were randomly selected from the CPAP group that had criteria for good tolerance and compliance in order to study the sensitivity to change of the questionnaire.
Results During the study period, consecutive patients were remitted to the specialized outpatient sleep consultation due to clinical suspicion of SAHS. Table 1 shows the results for the general description of the QSQ survey mean, standard deviation, ranges, percentage of patients with ceiling effect and floor effect. The values in bold correspond with the items included in each factor.
The most significant correlations are in bold print. Values tabulated as mean standard deviation. Arch Bronconeumol, 41 , pp. Manifestations and consequences of obstructive sleep apnoea. Eur Respir J, 8 , pp. Sleep apnea as an independent risk factor for all-cause mortality, The Busselton Health Study. Sleep, 31 , pp. Med Clin Barc , , pp. Conceptual framework and item selection. Med Care, 30 , pp. McHorney, Ware Je Jr.
Psychometric and clinical tests of validity in measuring physical and mental health constructs. Med Care, 31 , pp. Development of a disease-specific health-related quality of life questionnaire for sleep apnea. A Chinese version of the Sleep Apnea Quality of Life Index was evaluated for reliability, validity, and responsiveness.
J Clin Epidemiol, 57 , pp. Medicina Kaunas, Lithuania , 44 , pp. A new standardised and self-administered quality of life questionnaire specific to obstructive sleep apnoea. Thorax, 59 , pp. Health-related quality of life in obstructive sleep apnoea. Eur Respir J, 19 , pp.
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You can change the settings or obtain more information by clicking here. Are you a health professional able to prescribe or dispense drugs? Role of emotions SF The teenage son of the king and queen of Auradon offers the trouble-making children of villains a chance to attend prep school in the kingdom. When Zoey's mom remarries, Zoey finds it hard adjusting to her new life - no longer the only kid in the family. A contemporary musical version of the classic Cinderella story in which the servant step daughter hope to compete in a musical competition for a famous pop star.
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