Memory decline in older individuals predicts an objective indicator of oral health: findings from the Sydney Memory and Ageing Study

Table 6 Binomial logistic regression estimating effect of cognitive function on functional pairs of teeth

	Partially adjusted^a		Fully adjusted^b
	Odds Ratio (lower, upper 95% CI)	p value	Odds Ratio (lower, upper 95% CI)	P value
Wave 4
Composite global cognition	1.09 (0.85, 1.38)	0.482	1.11 (0.85, 1.45)	0.432
Attention/processing speed	1.03 (0.82, 1.30)	0.762	1.07 (0.83, 1.39)	0.581
Language	1.03 (0.83, 1.29)	0.751	1.03 (0.81, 1.32)	0.757
Executive function	1.09 (0.88, 1.35)	0.413	1.12 (0.88, 1.42)	0.335
Visuo-spatial	1.10 (0.87, 1.38)	0.412	1.12 (0.88, 1.43)	0.335
Memory	1.06 (0.83, 1.35)	0.623	1.05 (0.80, 1.37)	0.699
Change in cognitive function^{^}
Composite global cognition	0.96 (0.64, 1.42)	0.843	1.02 (0.66, 1.56)	0.929
Attention/processing speed	0.96 (0.72, 1.30)	0.830	1.00 (0.72, 1.39)	0.976
Language	0.84 (0.61, 1.17)	0.314	0.87 (0.61, 1.24)	0.456
Executive function	1.29 (0.93, 1.79)	0.118	1.34 (0.94, 1.91)	0.100
Visuo-spatial	0.89 (0.66, 1.21)	0.479	0.95 (0.69, 1.31)	0.775
Memory	1.01 (0.73, 1.39)	0.940	1.06 (0.75, 1.50)	0.729

If Odds Ratio (OR), OR > 1, (OR-1)*100% represents percentage increase in the odds of having 10 or more functional pairs of teeth per unit increase in standardised cognition score
If OR < 1, ((1/OR)-1)*100% represents percentage increase in the odds of having 10 or more functional pairs of teeth per unit decrease in standardised cognition score
CI Confidence Interval
^aAdjusted for age, gender and years of education
^bAdjusted for age, gender, years of education, medical conditions, general health, depression, smoking, alcohol consumption,
functionality and dental care utilization
^{^}Change in cognitive function = Score at Wave 4—Scores at Wave 1 (baseline)

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