Table 4.
Validation statistics for the risk-prediction algorithmin the validation cohort
| Mean (95% CI) | |
|---|---|
| Females | |
| R2 statistic,a % | 71.70 (70.30 to 73.10) |
| D statisticb | 3.25 (3.15 to 3.37) |
| ROC statisticc | 0.92 (0.91 to 0.93) |
| Males | |
| R2 statistic,a % | 72.11 (71.04 to 73.18) |
| Dstatisticb | 3.29 (3.20 to 3.38) |
| ROC statisticc | 0.92 (0.91 to 0.93) |
a
R2 statistic shows explained variation in time to diagnosis of lung cancer—higher values indicate more variation is explained.
b
D statistic is a measure of discrimination—higher values indicate better discrimination.
c
ROC statistic is a measure of discrimination—higher values indicate better discrimination.