Computerized cognitive behavioral therapy with sertraline in schizophrenia with depressive episodes: A 12-week randomized controlled trial

Table 3 Comparison of Calgary depression scale for schizophrenia scores between experimental and control groups

Outcome	Experimental group (n = 34)	Control group (n = 34)	MD (95%CI)	P value	Cohen’s d1
Baseline	12.32 ± 2.67	12.12 ± 2.90	0.21 (-1.14, 1.56)	0.762	-
2-week follow up	10.15 ± 2.73	10.91 ± 2.09	-0.76 (-1.94, 0.41)	0.200	-
4-week follow up	8.32 ± 1.84	9.65 ± 1.72	-1.32 (-2.19, -0.46)	0.003	0.74
8-week follow up	6.88 ± 1.43	8.41 ± 1.35	-1.53 (-2.20, -0.86)	< 0.001	1.10
12-week follow up	4.00 ± 2.10	5.68 ± 1.70	-1.68 (-2.60, -0.75)	< 0.001	0.88

¹Effect sizes are shown when t-tests are significant; small effect (> 0.2), medium effect (> 0.5), large effect (> 0.8).

95%CI: 95% confidence interval.