Table 3.

Adjusted rand index between clusters and outcome and silhouette score

Model	Adj. rand index	Silhouette score
k-means	−0.010	0.583
k-means	−0.014	0.466
Affinity propagation	0.063	0.144
Mean shift	−0.008	0.521
Spectral clustering	−0.006	0.778
Spectral clustering	0.000	0.058