Few studies have examined the association of multiple indices of socioeconomic status on tooth loss. The aim of this study was to investigate the association between multiple indices of socioeconomic status and tooth loss among Japanese. We conducted a web-based survey in 2010. A total of 4,989 people aged 20-69 years participated in our study. Cross tabulation and logistic regression analysis were used to determine the association between having missing teeth and socio- economic status. A multiple logistic regression analysis showed that respondents with the lowest educational attainment had a 2.05 times higher odds ratio (95%CI:1.36-3.10) for having missing teeth compared to those with highest education. Similarly, respondents with the lowest house-hold income had a 1.25 times higher odds ratio (95%CI:1.01-1.55) for having missing teeth compared to those of highest group. Educational attainment and house-hold income were significantly associated with socioeconomic inequalities in tooth loss.
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