Objective To investigate the association between tooth loss and limited activities of daily life among elderly people in China,and to provide scientific basis for improving their life quality.Methods This study utilized data from the Chinese Longitudinal Healthy Longevity Survey(CLHLS)collected in 2011 and 2014 to conduct a retrospective cohort study.The number of missing teeth was considered the independent variable,while the presence or absence of limitations in activities of daily living ADL served as the dependent variable.A multivariable Logistic regression analysis was employed to assess the relationship between tooth loss and limited activities of daily life among elderly people.In addition,a penalized spline generalized additive model was constructed to investigate potential nonlinear associations between the two variables.Results The 2011 survey included a total of 8 310 participants.The multivariable Logistic regression analysis indicated that compared to participants with 0 to 8 missing teeth,those with 9 to 27 missing teeth and those with 28 missing teeth had an increased risk of experiencing limitations in activities of daily living(OR=1.22,95％CI=1.01-1.49;OR=1.49,95％CI=1.22-1.83).The 2014 survey included a total of 4 240 participants,and the results were consistent with those from the 2011 survey.The penalized spline generalized additive model analysis suggested a linear relationship between the number of missing teeth and the risk of limitations in activities of daily living among the elderly.Conclusions There is a significant association between the number of missing teeth and limitations in activities of daily living among the elderly,suggesting that having an excessive number of missing teeth may be one of the risk factors for limitations in daily living activities.
elderly peopletooth lossactivities of daily lifelimitations in activities
万方数据
维普
