Validation of a questionnaire (CARAT10) to assess rhinitis and asthma in patients with asthma

Allergic Rhinitis and its Impact on Asthma (ARIA): achievements in 10 years and future needs

Allergic rhinitis (AR) and asthma represent global health problems for all age groups. Asthma and rhinitis frequently coexist in the same subjects. Allergic Rhinitis and its Impact on Asthma (ARIA) was initiated during a World Health Organization workshop in 1999 (published in 2001). ARIA has reclassified AR as mild/moderate-severe and intermittent/persistent. This classification closely reflects patients' needs and underlines the close relationship between rhinitis and asthma. Patients, clinicians, and other health care professionals are confronted with various treatment choices for the management of AR. This contributes to considerable variation in clinical practice, and worldwide, patients, clinicians, and other health care professionals are faced with uncertainty about the relative merits and downsides of the various treatment options. In its 2010 Revision, ARIA developed clinical practice guidelines for the management of AR and asthma comorbidities based on the Grading of Recommendation, Assessment, Development and Evaluation (GRADE) system. ARIA is disseminated and implemented in more than 50 countries of the world. Ten years after the publication of the ARIA World Health Organization workshop report, it is important to make a summary of its achievements and identify the still unmet clinical, research, and implementation needs to strengthen the 2011 European Union Priority on allergy and asthma in children.

RhinAsthma patient perspective: a short daily asthma and rhinitis QoL assessment

BACKGROUND

The present study aimed to develop a short validated patient-completed questionnaire, the RhinAsthma Patient Perspective (RAPP), to assess the health-related quality of life (HRQoL) in patients with asthma and comorbid allergic rhinitis in clinical practice.

METHODS

A provisional RAPP questionnaire was formed from candidate items identified through retrospective analysis of 333 RHINASTHMA questionnaires. This was then tested on 150 asthma patients with allergic rhinitis.

RESULTS

Psychometric analyses identified eight items fitting a unidimensional model to form RAPP. Internal consistency (Cronbach's alpha coefficient > 0.8) and agreement with RHINASTHMA (r = -0.31, P = 0.0001) were excellent. Criterion, discriminant, and convergent validity were good. Reliability in 47 stable patients was very good (intra-class and concordance correlation coefficients were 0.90 and 0.89, respectively). Responsiveness in 103 patients with health improvement or deterioration was significantly associated with changes in Global Rating Scale (r = -0.4965, P < 0.01), Rhinitis Visual Analogue Scale (r = 0.5722, P < 0.01) and asthma control test (r = -0.6483, P < 0.01). Minimal clinical difference in the analyzed population was 2.

CONCLUSION

RhinAsthma Patient Perspective is a simple eight-question questionnaire with good measurement properties and sensitivity to health changes, which will provide a valid, reliable and standardized HRQoL measurement in patients with asthma and comorbid allergic rhinitis in clinical practice.

Control of Allergic Rhinitis and Asthma Test (CARAT) can be used to assess individual patients over time

BACKGROUND

The Control of Allergic Rhinitis and Asthma Test (CARAT10) has been proposed as the first tool to implement the Allergic Rhinitis and its Impact on Asthma initiative guidelines in clinical practice. To serve this purpose, it must have adequate properties to assess the control of an individual over time. This study aimed to prospectively assess the test-retest reliability, responsiveness and longitudinal validity of CARAT10.

METHODS

Adults with asthma and allergic rhinitis were enrolled at 4 outpatient clinics of Portuguese central hospitals. At each of the two visits, 4 to 6 weeks apart, patients filled out CARAT10 and additional questionnaires, followed by a medical evaluation blinded to the questionnaires' answers.

RESULTS

From the 62 patients included, 51 patients completely filled out CARAT10 at both visits. The test-retest reliability, computed as an intra-class correlation coefficient, was 0.82. Regarding responsiveness, a significant change (p = 0.002) of CARAT10 score in clinically unstable patients was observed (95%CI -5.08; -1.31) and the Guyatt's responsiveness index was 1.54. As for the longitudinal validity assessment, the correlation coefficients of the changes of CARAT10 scores with those of ACQ5 and symptoms VAS ranged from 0.49 to 0.65, while with the physician assessment of control they ranged from 0.31 to 0.41.

CONCLUSION

CARAT10 has good test-retest reliability, responsiveness and longitudinal validity. It can be used to assess control of allergic rhinitis and asthma, both to compare groups in clinical studies and to evaluate individual patients in clinical practice.

Validation of a self-questionnaire for assessing the control of allergic rhinitis

BACKGROUND

Allergic rhinitis affects the lives of patients for whom discomfort is, in most cases, significantly improved by pharmacological treatment.

OBJECTIVE

To develop and validate a self-assessment global score for allergic rhinitis control (five items scored from 1 to 5 assessing the rhinitis over the 2 previous weeks).

METHODS

Study of acceptability, reliability, validity and sensitivity to change during a prospective observational study in 902 patients selected by 411 general practitioners or allergists.

RESULTS

The score correlated significantly to the clinical picture and to the impact of the rhinitis on social and sports activities at inclusion (P<0.0001). A significant improvement in the score was observed after 15 days of treatment: 14.9 ± 4.0 at inclusion and 21.5 ± 2.9 at re-evaluation after 15 days of treatment (P<0.0001). Using receiver operating characteristics curve, a score of 20 was the cut-off for poor vs. well-controlled rhinitis; a score strictly higher than 20 (best being 25) had a sensitivity of 67%, a specificity of 82%, a negative predictive value of 32% and a positive predictive value of 95%.

CONCLUSION AND CLINICAL RELEVANCE

The self-assessment score for allergic rhinitis control appeared to be sensitive to change and correlated to the clinical expression of rhinitis and also to its involvement with treatment. These results suggest that this self-completion questionnaire could be used in daily practice at each consultation to determine, in a standardized manner, the level of control of the allergic rhinitis of an individual patient.

Development and implementation of guidelines in allergic rhinitis – an ARIA-GA2LEN paper

The links between asthma and rhinitis are well characterized. The Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines stress the importance of these links and provide guidance for their prevention and treatment. Despite effective treatments being available, too few patients receive appropriate medical care for both diseases. Most patients with rhinitis and asthma consult primary care physicians and therefore these physicians are encouraged to understand and use ARIA guidelines. Patients should also be informed about these guidelines to raise their awareness of optimal care and increase control of the two related diseases. To apply these guidelines, clinicians and patients need to understand how and why the recommendations were made. The goal of the ARIA guidelines is to provide recommendations about the best management options for most patients in most situations. These recommendations should be based on the best available evidence. Making recommendations requires the assessment of the quality of available evidence, deciding on the balance between benefits and downsides, consideration of patients’ values and preferences, and, if applicable, resource implications. Guidelines must be updated as new management options become available or important new evidence emerges. Transparent reporting of guidelines facilitates understanding and acceptance, but implementation strategies need to be improved.