Table 2: Characteristics of the subjects in the study
Characteristic	Subject group
	Patients with cancer n = 55	Companions of patients with cancer n = 39	Patients who had undergone surgery n = 53	Companions of patients who had undergone surgery n = 29
Mean age, yr (and standard deviation)	56 (16)	53 (14)	43 (19)	46 (16)
Sex, % male	57	39	51	38
Years or level of education, % of subjects
< 8 yr	22	10	14	7
9-12 yr	35	44	33	41
12-14 yr	25	36	31	41
University/professional	18	10	22	11

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