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. 2012 Apr 30;2012:235206. doi: 10.1100/2012/235206

Table 4.

Sleep onset latency (minutes) at pre- and post-treatment.

Pre-treatment Post-treatment Post minus Pre Difference t P Effect size
Whole group
 WL (n = 15) 44.33 (60.08) 57.83 (41.74) 13.50 (59.96) −0.87 0.20 0.23
 CBT (n = 16) 28.28 (20.40) 30.41 (23.52) 2.13 (20.73) −0.41 0.34 0.10
 DMBI (n = 16) 48.28 (46.25) 38.47 (38.81) −9.81  (21.25) 1.85 0.04* 0.46+
Subgroup
 WL (n = 4) 67.50 (15.00) 90.00 (24.50) 22.50  (28.72) −1.57 0.11 0.78++
 CBT (n = 5) 53.00 (9.75) 40.00 (18.71) −13.00 (13.04) 2.23 0.05* 1.00++
 DMBI (n = 6) 97.50 (39.97) 80.00 (30.98) −17.50 (30.62) 1.40 0.11 0.57+

Note. WL: waitlist control; CBT: cognitive-behavioural therapy; DMBI: Dejian mind-body intervention. Subgroup included participants who took >30 minutes to fall asleep at baseline. Standard deviations are in parentheses. *P < 0.05, +medium effect size, ++large effect size