Patients with carotid atherosclerosis who underwent or did not undergo carotid endarterectomy: outcome on mood, cognition and quality of life

Table 1 Recruited sample and Cohort study sample. Comparison by age and gender

	Recruited sample (N = 46)	Dropouts at t1 (N = 6)	Intervention cohort (N = 30)	Control cohort (N = 10)
Age^a (years) Mean ± ds	72.56 ± 7.26	70.36 ± 7.9	73.16 ± 7.16	72.10 ± 8.75
Gender^b
m	30 (65.2 %)	5 (83.3 %)	17 (56.7 %)	8(80 %)
f	16 (34.8 %)	1 (16.6 %)	13 (43,3 %)	2(20 %)

^aDropouts at t1 (6) vs Overall Study Sample (40) F = 0.56, DF = 1,44,45, P = 0.455; Intervention (30) vs Control (10) F = 0.14, P = 0.71,DF = 1,38,39
^bDropouts at t1 (6) vs Overall Study Sample (40) χ2 (with Yates corr.) = 0.29, DF = 1, P = 0.59; Intervention (30) vs Control (10); χ2 = 2.22, DF = 1, P = 0.26

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