Table 1.

Baseline characteristics of participants by treatment group. Values are numbers (percentages) unless stated otherwise

Variable	Acupressure (n=64)	Physical therapy (n=65)
Mean (SD) age (years)	50.2 (13.8)	52.6 (17.2)
Male sex	21 (33)	17 (26)
Marital status:
Single	10 (16)	11 (17)
Married	54 (84)	54 (83)
Education:
College and above	17 (27)	14 (21)
Senior high school	20 (31)	16 (25)
Junior high school or below	27 (42)	35 (54)
Occupation:
Household keeper	18 (28)	16 (25)
Office worker	17 (27)	8 (12)
Heaver labour	9 (14)	8 (12)
Other	20 (31)	33 (51)
Median (range) time since onset of pain (years)	3.3 (0.2-33.3)	1.6 (0.2-34.3)
Median (range) length of latest pain period (months)	14.5 (0.02-360)	12 (0.25-432)