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. Author manuscript; available in PMC: 2013 Oct 4.
Published in final edited form as: Ann Neurol. 2012 Oct 4;72(4):587–598. doi: 10.1002/ana.23659

Table 1.

Demographic information for patient groups.

PD
N=48		 PDD
N=92		 p-value
Gender N (%M) 48 (70.8%) 92 (78.3%) 0.3311
Age of Motor Onset (years)
Median (IQR)		 61.00 (48.75, 70.00)* 63.50 (57.25, 71.75) 0.2572
Age of Dementia Onset (years)
Median (IQR)		 NA 74.00 (69.25, 79.75) NA
Age of Death (years)
Median (IQR)		 80.00 (72.00, 83.50) 79.00 (74.00, 82.00) 0.7652
Disease Duration (years)
Median (IQR)		 14.50 (9.75, 23.50)* 13.00 (9.00, 19.00) 0.2532
Motor-Dementia Interval (years)
Median (IQR)		 NA 8.00 (5.00, 14.00) NA
Dementia-Death Interval (years)
Median (IQR)		 NA 4.00 (2.00, 6.00) NA
Brain Weight (grams)
Median (IQR)		 1320.5 (1177.8, 1395.8) 1300.0 (1204.0, 1423.0)** 0.2873
APOE4 N (% carriers) 4/42 (9.5%) 40/89 (44.9%) <0.0011
H1/H1 Haplotype N (% carriers) 20/37 (54.1%) 40/89 (44.9%) 0.2231
1

Chi-Square,

2

Mann Whitney-U,

3

Independent T-test.

Missing Data for 2* and 1** cases.