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Abstract
Objective. Tooth loss impacts on general health and is a risk factor for malnutrition, disability, loss of self-sufficiency, and deterioration in quality of life. The present study was carried out to evaluate the prevalence of edentulism and its association with social and lifestyle factors in a population of elderly Italians. Material and Methods. Dental, social, and disease conditions were evaluated in a large community-based cohort (3054) of elderly subjects (≥65 years) of both sexes in northern Italy. Logistic regression analyses with stepwise forward selection were performed to estimate the independent contribution of nutritional, socio-economic, and lifestyle variables to dental status. Adjusted ORs and 95% CI were estimated for variables significantly associated with edentulism. Results. The prevalence of edentulism was about 44.0%. It was more pronounced in females and it was twice as prevalent in the 90+ years age group. Among edentulous subjects, 17.5% wore no prostheses. Difficulties in chewing and in swallowing were reported by 47.6% and 13.7% of the subjects, respectively. Multivariate analysis indicates that edentulism was associated with age in both sexes. For women, independently associated risk factors were: years since menopause >23 (OR = 1.81; 95% CI: 1.37–2.40), number of children >3 (OR = 1.95; 95% CI: 1.36–2.80), and living alone (OR = 1.47; 95% CI: 1.15–1.88). For men, these were serum albumin <40 g/l (OR = 1.79; 95% CI: 1.22–2.63), current smoking (OR = 4.01; 95% CI: 2.59–6.20), and former smoking (OR = 3.42; 95% CI: 2.42–4.82). Conclusions. The prevalence of edentulism among the elderly Italian population studied was at the high end among Western countries, and higher in women than in men. In women, tooth loss correlated with aging, female events (pregnancies, menopausal status), and living alone. In men, aging and smoking are important determinants of edentulism, which is associated with the risk condition of hypoalbuminemia. Difficulty in chewing was associated with dentition type. In our study, the high prevalence of edentulous subjects without prostheses suggests a need for educational and social measures to improve patients’ attitudes to dental care and to encourage the use of prostheses among the elderly.