TABLE 2.

Treatment discontinuation at 18 months (N = 1138)

Outcome, n (%)
Treatment discontinuation	633 (55.6)
Reason for discontinuation (n = 588 a )
Ineffectiveness	374 (63.6)
Adverse event(s)	179 (30.4)
Other	35 (6.0)
Subjects (with no missed visits) maintaining treatment over time
Baseline	1138 (100.0)
4 weeks	1138 (100.0)
3 months	760 (66.8)
6 months	653 (57.4)
12 months	473 (41.6)
18 months	397 (34.9)

Abbreviations: N, number of patients.

^a Reasons for discontinuation were not recorded (missing/unknown) for 45 (7.1%) discontinued cases.