| Age 20–69 | Age 70–84 | |
|---|---|---|
| Comparing the same intervention at different ages. Comparison of impact of β blockers on all cause mortality within one year of hospitalisation for congestive heart failure in patients aged 20–69 and 70–84 years in Australia. NNT is the reciprocal of the absolute risk reduction. Pe is the proportion of the population with disease eligible for the intervention. Pd is the proportion of the population with the disease | ||
| Baseline risk | 0.21 | 0.31 |
| Relative risk reduction | 0.34 | 0.34 |
| Absolute risk reduction | 0.0714 | 0.1054 |
| Number needed to treat (NNT) | 14.0 | 9.5 |
| Pe | 0.80 | 0.65 |
| Disease impact number (DIN) | 17.5 | 14.6 |
| Pd | 0.0019 | 0.0362 |
| Population impact number (PIN) | 9200 | 400 |