Relationship of tooth loss to mild memory impairment and cognitive impairment: findings from the fujiwara-kyo study

Table 3 Odds ratios of the length of the edentulous period for MMI and low MMSE-score status

		MMI			Low MMSE score
		Odds Ratio (95% CI)		P value	Odds Ratio (95% CI)		P value
	Per 1 year increase of the period after lost all teeth
Crude		1.040	(0.988 - 1.095)	0.133	1.063	(1.028 - 1.099)	<0.001
Adjusted for depressive symptoms		--*	--	--	1.060	(1.025 - 1.097)	<0.001
Plus age, sex and length of education		1.026	(0.967 - 1.088)	0.401	1.051	(1.010 - 1.094)	0.014
Adjusted for full model†		1.019	(0.960 - 1.082)	0.533	1.058	(1.014 - 1.103)	0.009
	Reference: The length of time after all teeth were lost <15 years
Adjusted for full model†	15 years or more	1.279	(0.442 - 3.700)	0.650	3.102	(1.432 - 6.720)	0.004

MMI: Mild Memory Impairment, MMSE: Mini-Mental State Examination, CI: confidence interval.
The number of subjects available for analysis: Control (n = 323), MMI (n = 18), Low MMSE score (n = 47).
*The subjects whose GDS score were "6 or more" were excluded from the MMI group.
†Full model included depressive symptoms (only in low MMSE score), age, sex, length of education, frequency of drinking, smoking habit, time spent walking every day, positive history of cancer and diabetes mellitus, and the levels of serum albumin, total cholesterol, and low-density lipoprotein cholesterol.

ISSN: 1744-9081