Comparison 8.

Work injury prevention programme versus no intervention

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Frequency of neck ache or pain	1	13	Mean Difference (IV, Fixed, 95% CI)	‐1.2 [‐2.77, 0.37]
2 Frequency of shoulder ache or pain	1	13	Mean Difference (IV, Fixed, 95% CI)	‐1.1 [‐2.65, 0.45]
3 Frequency of wrist/hand ache or pain	1	13	Mean Difference (IV, Fixed, 95% CI)	‐1.0 [‐2.52, 0.52]
4 Intensity of neck ache or pain	1	13	Mean Difference (IV, Fixed, 95% CI)	‐0.30 [‐1.19, 0.59]
5 Intensity of shoulder ache or pain	1	13	Mean Difference (IV, Fixed, 95% CI)	‐0.20 [‐0.91, 0.51]
6 Intensity of wrist/hand ache or pain	1	13	Mean Difference (IV, Fixed, 95% CI)	‐0.20 [‐1.17, 0.77]