Table 3.

Hazard ratios and 95% CI for dementia incidence according to the STAD cut-off points

	Crude model		Adjusted model
	HR	95% CI	HR	95% CI
STAD total score
≤ 4 points	Reference		Reference
≥ 5 points	4.98	2.61–9.48	2.67	1.40–5.08
Potential confounding factors
Age (years)			1.10	1.05–1.16
Sex (female)			1.72	0.87–3.42
Education (years)			1.07	0.95–1.20
Hypertension (yes)			0.61	0.34–1.10
Heart disease (yes)			1.69	0.88–3.26
Diabetes mellitus (yes)			0.89	0.35–2.29
Hyperlipidemia (yes)			0.82	0.44–1.51
Drinking habit (yes)			1.27	0.69–2.33
Smoking habit (yes)			1.24	0.42–3.70
Slow gait speed (yes)			1.01	0.45–2.26
Living alone (yes)			1.14	0.46–2.83
Physical inactivity (yes)			0.96	0.51–1.82
MMSE (score)			0.83	0.74–0.94

The model was adjusted for all potential confounding factors assessed in the present study

STAD simplified telephone assessment for dementia risk, HR hazard ratio, CI confidence interval, MMSE mini-mental state examination