Review Article

Randomized Controlled Trials on Complementary and Traditional Medicine in the Korean Literature

Table 4

Methodological quality of complementary and traditional medicine RCTs in Korea according to Cochrane tool for assessing risk of bias (%)*.

Risk of biasNatural productsMind and body practices  Total ()
Herbal medicine ()Ginseng therapy ()Vitamin diet-based therapy ()Acupuncture ()Pharmacoacupuncture ()Qigong
magnet ()
Tuina technique ()Moxibustion therapy ()Massage ()Taping technique ()Cupping therapy ()Meditation
tai-chi
yoga
aroma therapy ()

() Random sequence generation18 (60.0)11 (57.9)1 (20.0)65 (45.1)34 (48.6)2 (6.5)5 (29.4)4 (33.3)3 (30.0)3 (42.9)1 (20.0)3 (30.0)150 (41.7)
() Allocation concealment3 (10.0)7 (36.8)0 17 (11.8)3 (4.3)0 0 0 0 0 0 0 30 (8.3)
() Blinding of participants and personnel
 Patients23 (76.7)17 (89.5)3 (60.0)47 (32.6)30 (42.9)4 (12.9)0 1 (8.3)1 (10.0)1 (14.3)0 0 123 (34.2)
 Doctor22 (73.3)16 (84.2)3 (60.0)18 (25.7)59 (16.4)
() Blinding of outcome assessment22 (73.3)14 (73.7)3 (60.0)27 (18.8)8 (11.4)3 (9.7)0 0 2 (20.0)1 (14.3)1 (20.0)0 81 (22.5)
() Incomplete outcome data27 (90.0)15 (78.9)5 (100.0)42 (29.2)30 (42.9)9 (29.0)2 (11.8)9 (75.0)5 (50.0)7 (100.0)3 (60.0)6 (60.0)160 (44.4)
() Selective reporting2 (6.7)3 (15.8)03 (2.1)0 0 0 0 0 0 0 0 8 (2.2)

Low risk of bias, (%).