Table 2. Non-insulin diabetes treatment use before and after insulin initiation.

Treatment Use	90 days Before	90 days After	Continuation (%) a
Overall, n	65,902	55,839 b	84.7
Drug class, n (%)
Metformin	47,846 (72.6)	40,468 (72.5)	84.6
Sulfonylurea	22,834 (34.6)	16,815 (30.1)	73.6
Dipeptidyl peptidase 4 inhibitor	7,673 (11.6)	6,006 (10.8)	78.3
Glucagon-like peptide-1 receptor agonist	5,512 (8.4)	4,288 (7.7)	77.8
Sodium glucose co-transporter inhibitor	1,047 (1.6)	857 (1.5)	81.9
Thiazolidinedione	6,789 (10.3)	5,386 (9.6)	79.3

^a: Continuation (%) was defined as the indicated medication class was used both before and after insulin initiation.

^b: Among participants who were continuously enrolled for 90 days after initiating insulin (n = 65,902), the majority of them had refilled at least one non-insulin diabetes medication during the 90 days after insulin initiation (n = 55,839). Prevalence (%) after insulin initiation was defined as the proportion of participants used the indicated medication class among those who were continuously enrolled and used any non-insulin diabetes medications after insulin initiation (denominator n = 55,839).