Reliability and validity of the cancer-related dysfunctional beliefs and attitudes about sleep scale in cancer patients

Table 1 Frequency distribution of demographic characteristics (n = 356)

Variables	Groups	N	%
Gender	Male	169	47.5
Gender	Female	187	52.5
Age(years)	≤ 35	7	2.0
	35–44	34	9.6
	45–54	72	20.2
	55 ~ 64	127	35.7
	65 ~ 74	98	27.5
	75 ~ 84	16	4.5
	≥ 85	2	0.6
Educational levels	Primary school or less	63	17.7
	Junior high school	146	41.0
	Senior high school	81	22.8
	Junior college	42	11.8
	Bachelor degree or above	24	6.7
Place of residence	City	209	58.7
Place of residence	Countryside	147	41.3
Personal monthly income	≤ 1000	53	14.9
	1000 ~ 3000	130	36.5
	3000 ~ 5000	108	30.3
	≥ 5000	65	18.3
Cancer stages	Stage I	15	4.2
	Stage II	68	19.1
	Stage III	148	41.6
	Stage IV	125	35.1

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