Table 14 Top 10 important features for death1yr and PCI generated by Random Forest feature selection method (Genuer et al. 2010)
Rank | Death1yr | PCI |
|---|---|---|
1 | Total RVU of the referral path | Average time gap on the referral path |
2 | Total RVU of the previous referral path | Indicator of patient’s age in 66-70 |
3 | Average time gap on the referral path | Average PageRank values of all physicians on the referral path |
4 | Time range of the referral path | Indicator of the key physician’s specialty on the referral path as “interventional cardiology” |
5 | Average index of the first-time occurrence on a referral path for the last physician | Indicator of patient’s age in 76+ |
6 | Local clustering coefficient of the last physician on the referral path | The number of referral paths that include the last physician |
7 | Times of being the end node on a referral path of the last physician on the referral path | Indicator of the key physician’s specialty on the referral path as “interventional cardiology” |
8 | Times of being the first node on a referral path for the last physician | Average #involved paths among physicians on the referral path |
9 | indicator of patient’s age in 76+ | Average times of being the first node on a referral path for all physicians on the referral path |
10 | Average times of being the end node on a referral path for all physicians on the referral path | Times of being the first node on a referral path for the last physician |