Table 1.

Demographic and clinical features of PPA cases

	sv-PPA n = 11	nfv-PPA n = 19	lv-PPA n = 17	SPA n = 3	m-PPA n = 5	All sample
Female/Male ratio	8/3	13/6	10/7	2/1	4/1	35/20
Age in years (mean±st.dev.)	65.82±7.87	67.42±8.5	70.71±7.12	72.33±4.72	66.4±7.23	68.29±7.73
Age range in years	56–85	50–85	52–78	67–76	58–77	50–85
Years of education (mean±st.dev.)	10.1±3.48	11.32±5.09	11.65±5.17	16.33±2.89	10.4±5.32	11.45±4.70
Time from symptoms’ onset in months (mean±st.dev.)	35.64±15.84	25.89±12.2	27±15.58	32±6.93	28.8±6.57	28.78±13.67
Positive familiar anamnesis	1	3	2	2	1	9
MMSE adjusted score at baseline (mean±st.dev.)	23.25±5.24	20.07±6.91	21.11±4.68	26.75±1.84	20.57±1.41	21.5±5.58
Follow-up time in months (mean±st.dev.)	36±16.9	18±8.4	27±12.7	18.33±9.45	32.4±16.76	27.4±12.55
Diagnosis at the follow-up	5 sv-PPA, 6 FTD	5 nfv-PPA, 11 CBD, 3 PSP	7 lv-PPA, 10 AD	2 SPA, 1 CBD	2 AD, 3 FTD	–

sv-PPA, semantic variant of primary progressive aphasia; nfv-PPA, non fluent variant of primary progressive aphasia; lv-PPA, logopenic variant of primary progressive aphasia; SPA, slowly progressive anarthria; m-PPA, mixed primary progressive aphasia; MMSE, Mini-Mental Status Examination.