Comparison 2. Effect of discharge planning on unscheduled readmission rates.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
2.1 Average follow‐up, 3 months from discharge for the majority of studies	17	5126	Risk Ratio (M‐H, Fixed, 95% CI)	0.89 [0.81, 0.97]
2.1.1 Unscheduled readmission for participants with a medical condition	17	5126	Risk Ratio (M‐H, Fixed, 95% CI)	0.89 [0.81, 0.97]
2.2 Hospital readmission rates at various follow‐up times	18		Other data	No numeric data
2.2.1 Participants with a medical condition	14		Other data	No numeric data
2.2.2 Participants with medical or surgical condition	1		Other data	No numeric data
2.2.3 Participants recruited following surgery	2		Other data	No numeric data
2.2.4 Participants with a mental health diagnosis	2		Other data	No numeric data