Table 3.

Persistence in taking interferon-β-1b or interferon-β-1a during the pre- and post-BETACONNECT periods

Parameter	Pre-BETACONNECT perioda		Post-BETACONNECT periodb
	Interferon-β-1b	Interferon-β-1a	Interferon-β-1b	Interferon-β-1a
Persistence, % (95% CI) at
180 days	48 (41–56)	53 (48–59)	66 (58–75)	57 (50–64)
360 days	28 (21–37)	38 (32–44)	45 (37–56)	36 (29–43)
540 days	17 (11–27)	24 (19–31)	37 (28–48)	22 (15–31)
Median persistence, days (95% CI)	152 (105–231)	199 (167–235)	327 (244–440)	229 (184–304)

CI confidence interval

^aBefore the introduction of BETACONNECT (October 2013–September 2015)

^bAfter the approval/uptake of BETACONNECT (October 2016–September 2018)