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Comparison of engagement rates for advertising targeted to elderly and younger adults.
| Age groups | Campaign reach | Unique clicks | Clicks per reach (%) |
Cost per click (US$) |
Overall cost (US$) |
Number of subjects needed |
| Healthy Age 60+ | 142,228 | 7004 | 4.92 | $0.45 | $6828 | 45 |
| Smokers age 18-25 | 961,131 | 5895 | 0.61 | $0.34 | $2024 | 230 |
| Females age 16-25 | 469,678 | 7940 | 1.69 | $0.67 | $5400 (estimated) | 200 |
