Table 2. Summary of the overall within group effect sizes.

Outcome Measures	Sample Size			Effect Size Estimate				Heterogeneity
	K	n	Hedges’ g			95% CI	p	Q	p	I2 (%)
Pre- and Post- differences
Anxiety	28	1306		0.55	[0.42, 0.68]		< 0.01	80.48	< 0.01	66.45
Depression	31	1483		0.43	[0.31, 0.54]		< 0.01	93.43	< 0.01	67.89
CRF	23	1244		0.43	[0.28, 0.59]		< 0.01	138.52	< 0.01	84.84
Follow-Up
Anxiety	14	759		0.73	[0.59, 0.87]		< 0.01	31.77	< 0.01	59.08
Depression	14	847		0.49	[0.36, 0.63]		< 0.01	42.35	< 0.01	69.30
CRF	12	814		0.46	[0.33, 0.58]		< 0.01	35.01	< 0.01	68.63

CRF = cancer-related fatigue; K = number of studies that were included in the review; n = number of participants; CI = confidence interval.