Table 1. Baseline demographic characteristics of patients.

	ESWT group				Control group				Total
	n	%	Mean±SD	Range	n	%	Mean±SD	Range	n	%	Mean±SD	Range
Age (year)			45.0±12.0	21-74			43.3±11.9	19-68			44.2±11.9	19-74
Sex
Male	7	14.3			9	20			16	17
Female	42	85.7			36	80			78	83
Marital status
Married	40	81.6			35	77,8			75	79,8
Single	9	18.4			10	22,2			19	20,2
Smoking status
Smoker	24	49			18	40			42	44,7
Non-smoker	25	51			27	60			52	55,3
Education status
None	0	0			1	2,2			1	1,1
Read and write	6	12.2			6	13,3			12	12,8
Primary school	22	44.9			23	51,1			45	47,9
Secondary school	8	16.3			3	6,7			11	11,7
High school	10	20.4			10	22,2			20	21,3
University	3	6.1			2	4,4			5	5,3
Occupation
Housewife	31	63.3			25	55,6			56	59,6
Retired	2	4.1			1	2,2			3	3,2
Student	1	2			0	0			1	1,1
Full-time	11	22.4			14	31,1			25	26,6
Part-time	4	8.2			5	11,1			9	9,6
ESWT: Extracorporeal shock wave therapy; SD: Standard deviation.