Table 2.

Archetypal characteristics for each cluster (3-cluster solution).

Feature	Cluster 1: abandoning users	Cluster 2: frequent transient users	Cluster 3: sporadic users
Users, n (%)	473 (81.7)	13 (2.2)	93 (16.1)
Unique days, mean (SD)	1.3 (0.7)	11.2 (3.9)	4.0 (1.7)
Tenure, mean (SD)	3.6 (8.1)	68.9 (35.4)	43.0 (25.2)
Mood logs completed, mean (SD)	1.3 (0.8)	8.8 (3.8)	3.8 (1.9)
Conversations accessed, mean (SD)	0.8 (1.0)	10.8 (6.3)	4.0 (2.4)
Total interactions, mean (SD)	36.7 (16.8)	229.3 (83.0)	96.1 (36.6)