Median ROI | ROI range | Number of ROI studies | Median CBR | CBR range | Number of CBR studies | |
---|---|---|---|---|---|---|
Overall | 14.3 | –21.3 to 221 | 34 | 8.3 | 0.7 to 29.4 | 23 |
Local level | 4.1 | 0.9 to 19.3 | 18 | 10.3 | 0.9 to 23.6 | 11 |
National level | 27.2 | –21.3 to 221 | 17 | 17 | 1.2 to 167. | 10 |
Specialism | ||||||
Health protection | 34.2 | 0.7 to 221 | 8 | 41.8 | 1.1 to 167 | 10 |
Legislation | 46.5 | 38 to 55 | 2 | 5.8 | 3 to 8.6 | 2 |
Health promotion | 2.2 | 0.7 to 6.2 | 12 | 14.4 | 2 to 29.4 | 3 |
Healthcare public health | 5.1 | 1.1 to 19.3 | 6 | None reported | None reported | None reported |
Wider determinants | 5.6 | 1.1 to 10.8 | 6 | 7.1 | 0.7 to 23.6 | 6 |
CBR, cost-benefit ratio; ROI, return on investment.