. Author manuscript; available in PMC: 2015 Dec 1.

Published in final edited form as: JAMA Neurol. 2014 Dec 1;71(12):1576–1577. doi: 10.1001/jamaneurol.2014.2805

Table 1.

Demographic, clinical and pathologic features of PPA patients with and without a family or personal history of learning disabilities.

	PPA patients with personal or family history of LD (n=29)	PPA patients without personal or family history of LD (n=29)
Age at Onset	60.4 +/−8.3	62.0 +/−8.2
Age at Death	71.2 +/−7.2	71.4 +/−7.1
Education in years	15.4	16.0
Gender: % Male	69%	52%
Subtype	PPA-L: 9	PPA-L: 13
	PPA-G: 9	PPA-G: 8
	PPA-Other: 11	PPA-Other: 8
Primary Pathologic Diagnosis	PPA-AD: 16	PPA-AD: 15
Primary Pathologic Diagnosis	FTLD: 13	FTLD: 14

PPA-G: agrammatic; PPA-L: logopenic; PPA-Other: Includes patients who were unclassifiable by the 2011 guidelines (n=16) and also three PPA-S patients since the numbers were too low for separate analyses. FTLD: combined group of FTLD-tau (n=16) and FTLD-TDP (n=11). No separate analyses of FTLD subgroups was done because of low numbers and heterogeneity of the tauopathies and FTLD-TDP subtypes.