A Chinese Chan-Based Mind-Body Intervention Improves Sleep on Patients with Depression: A Randomized Controlled Trial
Table 5
Wake time after sleep onset (minutes) at pre- and post-treatment.
Pre-treatment
Post-treatment
Post minus Pre Difference
t
Effect size
Whole group
WL ()
29.00 (36.14)
28.45 (35.54)
0.05
0.48
0.02
CBT ()
29.72 (31.53)
21.75 (19.11)
1.42
0.09
0.36
DMBI ()
33.65 (25.50)
21.55 (19.92)
1.45
0.09
0.46+
Sub-group
WL ()
49.50 (42.88)
44.00 (44.64)
0.25
0.41
0.11
CBT ()
51.11 (26.19)
30.56 (19.44)
2.98
0.01*
0.99++
DMBI ()
51.67 (13.29)
28.83 (22.23)
1.96
0.05*
0.80++
Note. WL: waitlist control; CBT: cognitive-behavioural therapy; DMBI: Dejian mind-body intervention. Subgroup included participants who took >15 minutes to resume sleep after awakening at baseline. Standard deviations are in parentheses. * ≤ 0.05, +medium effect size, ++large effect size.