Table 2.

Impact of Cognitive Status on Receipt of Incident Pacemaker

Cognitive Status	Adjusted OR (95% CI)a
Cognitive status the visit before assessed for incident pacemaker
MCIb	1.2 (0.9-1.7)
Dementiac	1.6 (1.1-2.5)
No cognitive impairmentd	1 [Reference]
CDR the visit before assessed for incident pacemaker
0.5, MCI	1.5 (1.1-2.1)
1, Mild dementia	1.6 (1.0-2.5)
2, Moderate dementia	1.5 (0.7-3.1)
3, Severe impairment	2.9 (1.2-7.4)
0, No cognitive impairment	1 [Reference]
Cognitive status the visit before and the visit assessed for incident pacemaker
Stable MCI at both visits	1.1 (0.7-1.7)
Stable dementia at both visits	1.8 (1.2-2.8)
No cognitive impairment with decline to MCI or dementia	1.3 (0.8-2.3)
MCI with decline to dementia	1.7 (1.0-3.1)
Dementia or MCI with an improvement to MCI or no impairment	1.2 (0.6-2.3)
Stable; no cognitive impairment at both visits	1 [Reference]

Abbreviations: CDR, clinical dementia rating; MCI, mild cognitive impairment; OR, odds ratio.

^aAnalyses were adjusted for sex; age; race; pacemakers per1000 Medicare beneficiaries in the Alzheimer Disease Centers hospital referral region; and time-varying variables for functional status, cardiac comorbidity status, hypertension, and Hachinski Ischemic Score.

^bUnadjusted rates of incident pacemaker device, 4.7 per 1000 person-years.

^cUnadjusted rates of incident pacemaker device, 6.5 per 1000 person-years.

^dUnadjusted rates ofincident pacemaker device, 4.0 per 1000 person-years.