Table 1.

Dementia Progression Study subject cohort characteristics at baseline (N = 280).

Age, years, mean (SD)	85.67 (5.60)
Age of dementia onset, years, mean (SD)	82.37 (5.84)
Female (%)	52.1
Dementia type (%)
Alzheimer's disease	72.1
Vascular dementia, no AD	13.2
Other dementia	14.6
General Medical Health Rating (%)
Fair/Poor	18.6
Good/Excellent	81.4
Died during study (%)	85.0
Less than high school education (%)	14.3
MMSE (median, max 30)	23.0
CDR (median, max 5)	1.0
NPI (median, 0 = none, min = 0; max = 48)	8.0
Dementia duration (median, years)	2.84
Costs of dementia care (median, $2015/day)	$9.70
Costs of dementia care [mean, $2015/day, (SD)]	$43.33 (82.52)

# Assessments per person: •Range: 1–7 •1 assessment only: n = 116 (41.4%) •Median: 2 # Follow-up years per person (for those with ≥2 assessments) •Median: 2.4 •Range: 1.0–6.9

Abbreviations: MMSE, Mini-Mental State Examination; CDR, Clinical Dementia Rating Scale; NPI, Neuropsychiatric Inventory.