Table 3 Age- and sex-specific number needed to treat to prevent one death in 5 and 10 years
|  | 5-year mortality rate in non-denture users | 10-year mortality rate in non-denture users | HR[95% CI] of denture users versus non-denture users | NNT[95% CI] to prevent one death in 5 years | NNT[95% CI] to prevent one death in 10 years |
|---|---|---|---|---|---|
65–79 years & men | 19.8% | 44.7% | 0.64[0.55, 0.74] | 6.4[4.7, 9.7] | 6.6[5.1, 9.6] |
80–89 years & men | 56.1% | 85.7% | 0.69[0.62, 0.78] | 9.1[7.2, 12.9] | 24.0[19.1, 33.4] |
> = 90 years & men | 82.4% | 97.9% | 0.83[0.75, 0.92] | 36.7[24.6, 79.6] | 287.3[193.7, 617.8] |
65–79 years & women | 16.7% | 36.7% | 0.66[0.56, 0.78] | 7.3[5, 12.6] | 6.8[5.0, 11.2] |
80–89 years & women | 48.9% | 81.5% | 0.79[0.70, 0.90] | 12.8[8.5, 27.2] | 28.3[19.4, 58.5] |
> = 90 years & women | 82.1% | 97.7% | 0.85[0.79, 0.93] | 41.5[28.3, 82.9] | 300[205.7, 595.5] |