Validation of the French version of the LEIPAD in community-dwelling people aged 80 years and above

Abstract

BackgroundFew studies have addressed health-related quality of life in community-dwelling individuals aged 80 years and above and very few self-assessment quality of life questionnaires have been formally validated in these populations. This study aimed to validate a French version of the LEIPAD, a self-administered questionnaire assessing the health-related quality of life of people aged 80 years and over.MethodA cross-sectional study of people aged 80 years and over living at home in France was conducted. All subjects recruited were sent a letter explaining the study and requesting their consent to take part. Those who accepted then received the questionnaires, including the LEIPAD, which assesses health-related quality of life in the subjects aged 65 years and above. We assessed its psychometric properties: data completeness, score distribution, floor and ceiling effects, internal consistency, item-total correlations, inter-scale correlations, reliability and convergent validity with the Medical Outcome Study Short-Form 36 (SF-36).ResultsThe results obtained from 184 older people (mean age of 83.9 years, standard deviation 3.3) showed very good acceptability (missing data between 1.1% and 11.4% for LEIPAD scales) Factor analysis of the instrument confirmed the multi-dimensional structure in seven independent scales similar to the original version. Good internal consistency (Cronbach’s alpha ranging from 0.68 to 0.87) and strong test-retest reliability of the LEIPAD scales (intraclass correlation coefficients ranging from 0.77 to 0.95) were found. Convergent validity with the SF-36 showed moderate to strong correlations, consistent with the hypotheses stated.ConclusionsThe validation of this specific questionnaire will make it possible to investigate individually the health-related quality of life of French older people living at home and will enable French-speaking investigators to contribute to national and international research projects.

Health-related quality of life among community-dwelling people aged 80 years and over: a cross-sectional study in France

“…In all, 2064 people were eligible, of whom 1501 were randomly selected to take part in the study. The sample size was calculated for a previous publication validating the LEIPAD questionnaire [18].…”

“…Once all the data had been collected, we excluded from analysis participants who had not replied to the Fig. 1 Organisation chart of participation in the study [18]. Of the 1501 people invited to take part, 448 (32%) replied to the request (100 letters were not delivered) with 239 accepting (53.3%) and 209 declining (46.7%).…”

“…The score is then converted on a linear scale from 0 to 100, with lower scores indicating a better HRQoL. Its psychometric qualities have been widely demonstrated [16][17][18]20]. A French version of the questionnaire was validated by our team specifically for use among community-dwelling people aged 80 years and above [18].…”

“…Its psychometric qualities have been widely demonstrated [16][17][18]20]. A French version of the questionnaire was validated by our team specifically for use among community-dwelling people aged 80 years and above [18]. It showed very good acceptability, with response rates to each of the LEIPAD scales greater than 88%.…”

“…They include the LEI-PAD, an acronym derived from the first two of the three universities involved in its development, LEIden in the Netherlands and PADua in Italy, under the auspices of the European office of World Health Organization. The LEIPAD is a brief self-administered HRQoL questionnaire developed specifically for community-dwelling EP and validated for French speaking people aged 80 years and over [17,18].…”