Effect of Electroacupuncture versus Sham Electroacupuncture in Patients with Knee Osteoarthritis: A Pilot Randomized Controlled Trial

Table 1

Baseline characteristics of intention-to-treat population.

Characteristics	Electroacupuncture (n = 15)	Sham electroacupuncture (n = 15)
Female, no. (%)	13 (86.7)	11 (73.3)	0.361
Male, no. (%)	2 (13.3)	4 (26.7)	0.361
Age, mean (SD), years	63.5 (8.4)	65.2 (7.6)	0.572
BMI, mean (SD), kg/m^2	24.2 (2.8)	26.0 (2.9)	0.110
Duration, mean (SD), months	61.3 (47.6)	68.2 (62.4)	0.737
Kellgren criteria
Kellgren 2, no. (%)	7 (46.7)	7 (46.7)	1.000
Kellgren 3, no. (%)	8 (53.3)	8 (53.3)
AROM, mean (SD), °	116.8 (13.3)	115.4 (14.2)	0.775
PROM, mean (SD), °	124.9 (13.6)	124.2 (14.6)	0.887
Quadriceps muscle strength score, mean (SD)	9.9 (1.2)	10.4 (1.5)	0.350
Hamstring muscle strength score, mean (SD)	8.7 (0.9)	9.0 (1.2)	0.395
Lequesne index score, mean (SD)	10.6 (3.2)	10.7 (3.7)	0.958
TUG, mean (SD), s	13.8 (4.0)	12.9 (4.8)	0.594
9-SCT, mean (SD), s	21.3 (12.0)	18.7 (11.6)	0.564

BMI: body mass index; AROM: active maximum flexion knee range of motion; PROM: passive maximum flexion knee range of motion; TUG: Timed Up and Go Test; 9-SCT: 9-step stair-climb test. Significant .