Qualité de vie liée à la santé : un guide de lecture

Cross-cultural adaptation of the CRS-PRO questionnaire into French

BACKGROUND

Chronic rhinosinusitis (CRS), encompasses many different clinical patterns with variable response to treatment. Precise criteria specifying disease severity and control are lacking in the current literature. Our aim was to perform a cross-cultural adaptation of the CRS-PRO, creating a French version for use as a routine questionnaire in the assessment of patients with CRS.

METHODS

The CRS-PRO questionnaire was translated according to the recommendations of the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) through a three-step procedure including a backward translation.

RESULTS

Seven of 12 items were initially discordant between the three translators before achieving consensus (Step 1). Two of 12 items were discordant between the backward translation and the initial CRS-PRO version regarding the word "mucus"(Step 2). Step 3 allowed the creation of a French proof-read version of the CRS-PRO questionnaire. Thirty patients were included for initial validation, mean age of 49.2 ± 15 years and 63.3% (19/30) male. It took them 67 ± 23 s to complete the questionnaire without any patients requiring more than 2 min.

CONCLUSION

This study presents the French version of the CRS-PRO questionnaire-an adapted, validated, and well-accepted instrument to evaluate the CRS symptoms in the French speaking population.

Cross-cultural adaptation into French and validation of the SCAR-Q questionnaire

PURPOSE

Most questionnaires designed to evaluate patient-reported outcomes regarding scarring are available in English. The objective was to generate a validated French version of the SCAR-Q questionnaire.

METHODS

The SCAR-Q questionnaire (including Appearance, Symptom and Psychological impact scales) was translated into French using a translation-back-translation process in accordance with international guidelines (ISPOR and WHO). For validation, two hundred patients consulting in our tertiary center completed the questionnaire. We tested scale reliability (Cronbach's α), floor/ceiling effects and item redundancy (inter-item correlations). Structural validity was tested using confirmatory factor analysis (CFA) with the robust weighted least squares (WLSMV) estimator and Delta parameterization. Model fit was examined using the root mean square error of approximation (RMSEA), the comparative fit index (CFI) and the Tucker-Lewis index (TLI). Correlations between scales and scale repeatability were tested (Spearman coefficient, Intra-class-coefficient).

RESULTS

Four steps were required to obtain a translation consistent with the original version. Two hundred patients completed the questionnaire for validation. Internal consistency analysis found Cronbach's alphas > 0.7 for all scales (0.90 < α < 0.97). No floor or ceiling effect was found for all items (max = 85%). A ceiling effect was observed for all scales. Appearance and psychosocial impact scale items showed redundancy, with many inter-item correlations above 0.7. The CFA of the original structure displayed a reasonable fit, with RMSEA = 0.065, CFI = 0.974 and TLI = 0.972. Scales were positively correlated (0.45 <  ρ < 0.65; p < 0.001). Test-retest intra-class correlation coefficients ranged from 0.94 to 0.99 for all scales.

CONCLUSION

A French version of the SCAR-Q questionnaire is validated, ready for use.

Rhinoplasty: French validation of the MiRa scale

AIMS

The aim of this study was to translate the MiRa scale into French and validate its use for French-speaking surgeons.

MATERIAL AND METHODS

ISPOR and WHO recommendations were used to carry out the translation process from English to French in five steps. The MiRa scale is a validated analysis scale of nasal dysmorphoses. Few tools are available in French for French-speaking surgeons. ISPOR and WHO recommendations were used to complete the five-step translation process from English into French. To assess the reliability of the MiRa scale-French version, we statistically compared intra-observer repeatability (comparison of scores obtained when one observer assessed each patient twice at a one-month interval) and inter-observer repeatability (comparison of scores obtained when 2 observers assessed the same patient) using the Wilcoxon test and the intraclass correlation coefficient (ICC) (α=5%).

OBJECTIVES

Our goal was to obtain a translation of the idea or concept rather than a literal translation to enable good intra- and inter-observer repeatability.

RESULTS

Each step allowed us to make changes gradually working towards a conceptual translation equivalent to the original version.

CONCLUSION

The MiRa scale is the only aesthetic analysis scale validated in the literature for nasal dysmorphoses. The combined use of two sets of translation recommendations, with a five-step translation-back-translation process, made it possible to obtain a French version perfectly in line with the original. This version is usable by French-speakers.

French validation of the FACE-Q Rhinoplasty module

OBJECTIVES

The aim of this study was to translate the FACE-Q "Rhinoplasty" module into French and validate its use for the French-speaking population.

DESIGN

"Satisfaction with the nose" and "Satisfaction with nostrils" questionnaires were used and translated.

SETTINGS

We were granted permission to use the FACE-Q rhinoplasty module by the development team. These two questionnaires constitute the rhinoplasty module of the FACE-Q questionnaire. ISPOR and WHO recommendations were used to complete the translation process from English into French in six steps.

MAIN OUTCOME MEASUREMENT

Our goal was to obtain, not a literal translation, but rather a translation of the idea or concept.

RESULTS

Each step allowed us to make changes to achieve a conceptual translation equivalent to the original version.

CONCLUSION

The FACE-Q questionnaire is a reference in the field of cosmetic surgery outcome evaluation. The use of two validated translation recommendations, with a six-step translation-back translation process, leads to a French version corresponding to the original. This version is usable in a French-speaking population.

Threshold levels of visual field and acuity loss related to significant decreases in the quality of life and emotional states of patients with retinitis pigmentosa

INTRODUCTION

Retinitis pigmentosa (RP) is an inherited retinal disorder, characterized by photoreceptor degeneration inducing progressive vision loss. This study evaluates its impact on quality of life (QOL) and emotional states of patients affected by RP.

METHODS

A cross-sectional study was conducted on 60 RP patients diagnosed with rod-cone dystrophy and on 20 control subjects. The RP population has been divided into 3 groups according to visual field (VF) and visual acuity (VA) impairments. Concurrently, scores of self-reported QOL (25-item National Eye Institute Visual Functioning Questionnaire) and of the Hospital Anxiety and Depression Scale for anxiety/depression assessments were collected.

RESULTS

For the QOL composite score, we noticed consistent differences between all VF and VA affected groups and their control group. We also found significant differences between both the most affected VF group (VF1: ØVF <20°) and VA group (VA1: VA <0.3) compared to other VF and VA groups. For anxiety/depression scores, consistent differences have been found between the control group and VF1 and VA1, respectively.

CONCLUSIONS

This work determines that, for RP patients, a significant QOL and emotional state deterioration correlates with a residual VF diameter below 20° and a VA lower than 0.3. It introduces, for the first time, thresholds to be used in visual restoration or visual preservation therapies to improve QOL of RP patients.

French Validation of the NOSE and RhinoQOL Questionnaires in the Management of Nasal Obstruction

Objective. Until now, there has been no validated and specific questionnaire in French allowing the assessment of nasal obstruction and its consequences on quality of life. The aim of this study was to validate the French translation and sociocultural adaptation of the Nasal Obstruction Symptom Evaluation (NOSE) and Rhinosinusitis Quality of Life Survey (RhinoQOL) self-questionnaires.

Study Design. Prospective instrument validation study.

Setting. French tertiary referral center.

Subjects and Methods. The questionnaires were translated into French and then translated back into English. The final version was administered twice to an asymptomatic control population (n = 50) and once to a population with symptomatic septal deviation (n = 50). The psychometric properties (reliability, reproducibility, validity, responsiveness) were assessed by test-retest procedure, internal consistency, correlation intra- and interscores, and response sensitivity between both populations.

Results. There was no statistical difference in both responses obtained from the control population after the test-retest procedure. Internal consistency was 0.86 for the NOSE and 0.57, 0.67, and 0.83 for the scores of the RhinoQOL (frequency, bothersomeness, and impact, respectively). There was always a strong correlation between all NOSE variables and RhinoQOL scores ( r > 0.40; P < 10−3). Effect size showed a high sensitivity to change.

Conclusion. The French versions of both questionnaires appear to be as reliable, valid, and sensitive to change as the English versions. Their association was strong, allowing assessment of nasal obstruction in all its dimensions.