Table 3.

Multivariate logistic regression analysis of factors with MT > 0 among 35–44 years adults in Guangdong Province

Variables	MT > 0 (%)	OR (95%CI)
Years
	–	1.03 (0.99–1.07)
Age
35–39 years old†	35.0	–
40–44 years old	46.1	1.41 (1.12–1.77)
Sex
Male†	35.4	–
Female	45.6	1.29 (1.02–1.63)
Residence
Urban†	37.4	–
Rural	43.3	1.09 (0.86–1.39)
Education level
Low educational attainment†	45.4	–
High educational attainment	33.7	0.52 (0.35–0.78)
Caries
No†	23.4	–
Yes	51.3	7.04 (4.51–10.98)
Periodontal pocket
No†	37.6	–
Yes	46.7	1.53 (1.19–1.96)
Education level × years
	–	1.04 (1.01–1.07)
Caries × years
	–	0.93 (0.89–0.96)

^†Reference category

OR odds ratio, CI confidence interval