Association of total tooth loss with smoking, drinking alcohol and nutrition in elderly Japanese: analysis of national database.
OBJECTIVE
Various factors may be associated with edentulism in elderly people. Association of total tooth loss with smoking, alcohol intake and nutrition in non-institutionalised elderly Japanese was assessed utilising national database.


METHODS
Records of independent surveys, the Survey of Dental Diseases (SDD) and the National Nutrition Survey (NNS) in 1999 were electronically linked using the household identification number.


RESULTS
Among the records of 6903 subjects in the SDD and 12 763 subjects in the NNS, 6805 records were successfully linked. Overall, prevalence of total tooth loss in adults was very similar in males and females at approximately 7.0%, and the smoking rate was 47.6% and 9.9% respectively. Total tooth loss was a rare phenomenon (<2%) in age groups of <60 years. According to the multiple logistic regression analysis involving 2200 subjects aged 60 years or older, significant variables were age, current smokers and vitamin C intake in males, and age and current smokers in females. The variable for current drinkers was significant in females but the odds ratio was <1.0. No significant relationship was detected with respect to former smokers and drinkers, body mass index, vitamin E intake and blood glucose level.


CONCLUSIONS
Current smoking was associated with total tooth loss, although smoking rate was low in females. Gender difference in the association was suggestive with respect to drinking alcohol and vitamin C intake.
Hanioka
Takashi
T
Department of Preventive and Public Health Dentistry, Fukuoka Dental College, Fukuoka, Japan. haniokat@college.fdcnet.ac.jp
Ojima
Miki
M
Tanaka
Keiko
K
Aoyama
Hitoshi
H
D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D000428:Alcohol Drinking / Q000453:epidemiology*; D001205:Ascorbic Acid; D001786:Blood Glucose; D015897:Comorbidity; D003430:Cross-Sectional Studies; D016208:Databases, Factual; D003753:Dental Health Surveys; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009066:Mouth, Edentulous / Q000453:epidemiology*; D009749:Nutrition Surveys; D009752:Nutritional Status; D016017:Odds Ratio; D017678:Sex Distribution; D012907:Smoking / Q000453:epidemiology*; D016388:Tooth Loss / Q000453:epidemiology*; D014810:Vitamin E
D001786:Blood Glucose; D014810:Vitamin E; D001205:Ascorbic Acid