Table 1.

Basic characteristics of included studies.

References	Design	Sample size	Age (Mean ± SD)	Sex (M/F)	Disease duration (Mean ± SD)	Session/duration
Cardoso et al. 15	RCTs	11	67 ± 8.3	NR	11 ± 7.6	12 days/4 weeks
Boggio et al. (32)	RCTs	13	NR	NR	NR	10 days/2 weeks
Brys et al. (35)	RCTs	Ne:12 Nc:15	Ne:64.6 ± 12.3 Nc:64.0 ± 7.4	Ne:6/6 Nc:11/4	Ne: 7.7 ± 4.2 Nc: 4.5 ± 2.2	10 days/2 weeks
Epstein et al. (31)	Self-control	12	NR	9/5	NR	10 days/2 weeks
Pal et al. (34)	RCTs	Ne:12 Nc:10	Ne: 68.5 Nc: 67.5	Ne:6/6 Nc:5/5	NR	10 days /2 weeks
Shin et al. (21)	RCTs	Ne:10 Nc:8	Ne: 69 Nc: 67	Ne:6/4 Nc:2/6	NR	10 days/2 weeks
Furukawa et al. (33)	Self-control	5	66.83 ± 3.43	3/3	7.17 ± 3.06	3 months
Dragasevic, et al. (22)	Self-control	10	59.9 ± 8.5	6/4	NR	10 days/2 weeks
Yokoe et al. (36)	RCTs	19	69.1 ± 8.4	7/12	9.5 ± 3.2	3 days/4 weeks

M, male; F, female; Ne, number of participants in experimental group; Nc, number of participants in control group; NR, no report.