NNT – number needed to treat to prevent one event

NNT = the estimated number of individuals who would need to be treated for one year to prevent one primary event.

NNT = number needed to treat for one year to prevent one event compared to warfarin.

The number of subjects in a study must reflect the planned number of interim analyses.

Statistical justification for the number of Subjects to be included in the Study

NNT – number needed to treat to prevent one event

However, their use does not significantly decrease the numbers of animals required.

Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample.

Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample

Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample.

Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample.

Methodological expertise: assistance with the choice of research classification, calculation of the number of required subjects, writing of the statistical analysis plan.

The number needed to screen to prevent one death from lung cancer was 320.

The number needed to screen with low-dose CT, as outlined in our protocol, to prevent one death from lung cancer was 320.

The number needed to screen with LDCT to prevent one death from lung cancer was 320.