Specific form of ageism in dental care: Convergent validity of the Ageism Scale for Dental Students and its implications for education

Introduction The World Health Organisation considers ageism as an important barrier to age-appropriate care for older adults. An Ageism Scale for Dental Students (ASDS) has been validated in the United States, Brazil, Greece, Romania and in France. At present, the convergent validity of ASDS has never been evaluated. Moreover, a specialised and disciplinary tool as the ASDS may not overlap with more general ageism assessment which may highlight the need for specific courses during the education of the future health professionals. Materials and Methods The survey was administered from December 2020 to January 2021. All the undergraduate students of the last 3 years of study at the dental school of Clermont-Ferrand were invited to complete both scales. Two hundred sixteen students were randomly divided into two equal groups. The first group answered first Aging Semantic Differential- ASD then ASDS, the second in reverse order. The convergent validity between ASDS and ASD was assessed by computing a Pearson correlation coefficient and discriminant analysis between each component of the two scales. Results The response rate was of 53.7%. The correlation analysis conducted on the total scores of the ASDS and of the ASD shows a significant, yet weak relationship. The discriminant analysis indicates that only the first component of the ASDS is significantly associated with each dimension of the ASD, whereas the second component is totally independent from the ASD and the third component almost independent from the ASD, except for the integrity dimension. Conclusions This specialised questionnaire may assess a form of ageism that is not captured at all in more general scales. Such a scale may help to identify the different dimensions of ageism among dental students which is required to reduce ageism in medical care. This reduction should pass by adapted courses in gerodontology.