Comparison 5. Specific McKenzie Exercise Treatment vs Minimal booklet/back school.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Number of subjects with recurrent LBP	2		Risk Ratio (M‐H, Random, 95% CI)	Subtotals only
1.1 follow‐up 1/2 to 2 years	2	294	Risk Ratio (M‐H, Random, 95% CI)	0.75 [0.42, 1.35]
1.2 follow‐up 2‐5 years	1	89	Risk Ratio (M‐H, Random, 95% CI)	0.72 [0.57, 0.92]
2 Number of sick leaves caused by recurrent LBP	1		Mean Difference (IV, Random, 95% CI)	Subtotals only
2.1 follow‐up 1/2 to 2 years	1	95	Mean Difference (IV, Random, 95% CI)	‐13.10 [‐30.79, 4.59]
2.2 follow‐up 2‐5 years	1	93	Mean Difference (IV, Random, 95% CI)	‐19.80 [‐86.53, 46.93]