FRENCH NORMATIVE REFERENCE DATA FOR THE QUALITY OF LIFE ASSESSMENT OF GROWTH HORMONE DEFICIENCY IN ADULTS (QOL-AGHDA) QUESTIONNAIRE

Author(s)

Anne Chachuat, PharmD, Therapeutic Area Manager - Clinical Research1, Maria Koltowska-Haggstrom, MD, Project Director2, Hélène Gilet, MSc, Associate Statistician3, Sébastien Auziere, MSc, Research Director4, Xavier Guillaume, MSc, Senior Research Analyst4, Benoit Arnould, PhD, Operations Director3, Muriel Viala, MSc, Associate Project Director31Pfizer, Paris, France; 2 KIMS Medical Outcomes, Pfizer Endocrine Care, Sollentuna, Sweden; 3 Mapi Values, Lyon, France; 4 TNS-Healthcare, Montrouge, France

OBJECTIVES: Normative data were collected for the Quality of Life Assessment of Growth Hormone Deficiency in Adults (QoL-AGHDA) questionnaire in the French general population in order to improve the QoL-AGHDA scoring system and its interpretability, as well as prepare for health economic assessment. METHODS: A postal survey was conducted on a sample of 2,900 adults belonging to TNS-Healthcare permanent polling panel and selected to be representative of the French population. Participants were asked to complete an 8-page questionnaire including the QoL-AGHDA questionnaire, the EuroQoL-5 Dimension (EQ-5D), a 5-point Likert scale for the participants to rate their overall health status (OHS) and questions about their general and medical situation. Socio-demographic data came from the permanent polling panel. A total score was calculated on the 25 dichotomous items of the QoL-AGHDA questionnaire, with a lower score indicating a better QoL. The description of the QoL-AGHDA score was performed on weighted data in order to ensure that the respondent population was representative of the French population. The QoL-AGHDA score was described according to OHS of respondents. Pearson correlation coefficient with the EQ-5D index was calculated. RESULTS: The return rate of questionnaires was 75%; 95% of respondents completed all QoL-AGHDA items. The mean age of the population was 50.1, with 54.1% respondents female. The mean weighted QoL-AGHDA score was 5.05 for women and 4.18 for men; it was 4.37 for people aged 18-40 years, 4.63 for 40-60 and 5.02 above 60. When described according to respondents’ OHS, it was: 1.54 for excellent OHS, 2.87 for very good, 4.49 for good, 7.73 for fair and 12.30 for poor OHS. Its correlation with the EQ-5D index was –0.59. CONCLUSIONS: Reference values for the QoL-AGHDA questionnaire have been collected for the French general population, completing the QoL-AGHDA normative database already available in a number of European countries.

Conference/Value in Health Info

2008-11, ISPOR Europe 2008, Athens, Greece

Value in Health, Vol. 11, No. 6 (November 2008)

Code

QL12

Topic

Patient-Centered Research

Topic Subcategory

Patient-reported Outcomes & Quality of Life Outcomes

Disease

Diabetes/Endocrine/Metabolic Disorders

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