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. 2022 Jul 7;11(3):1399–1408. doi: 10.1007/s40120-022-00377-1

Table 2.

Analysis of patient characteristics distinguishing success or failure with BIW INFβ1a treatment

Stable on BIW interferon Active on BIW interferon P value
Age at onset of MS, N = 40 mean (SD) 33.9 (12.5) 33.4 (9.6) 0.955
Sex, N = 40
 Male (%) 19 (82.6) 12 (70.6) 0.456
 Female (%) 4 (17.4) 5 (29.4)
Race, N = 40
 African American (%) 3 (13) 5 (29.4) 0.333
 Hispanic (%) 1 (4.3) 0
 White (%) 19 (82.6) 12 (70.6)
Duration of disease prior to QW INFβ, N = 40
 Mean years (SD) 16 (11.5) 13.7 (10.3) 0.506
Type of MS disease, N = 40
 RR (%) 6 (26.1) 7 (41.2) 0.718
 SP (%) 17 (73.9) 10 (58.8)
Age at start of QW INFβ, N = 40 mean (SD) 50.3 (10.4) 47.8 (8.7) 0.410
Age at start of BIW INFβ, N = 40 mean (SD) 52.1 (10.4) 49.8 (8.4) 0.457
 Duration of disease prior to BIW INFβ, N = 40
 Mean years (SD) 17.8 (12) 13.7 (10.3) 0.506
Type of MS disease at start of BIW INFβ, N = 40
 RR (%) 5 (21.7) 7 (41.2) 0.715
 SP (%) 18 (78.3) 10 (58.8)
EDSS score at start of QW INFβ, N = 40 mean (SD) 5 (1.6) 5.3 (1.4) 0.575
Number of relapses in the 2 years prior to start of QW INFβ, N = 40
 Mean (SD) 1 (1.2) 2.1 (1.6) 0.020
Number of relapses in the 2 years prior to start of BIW INFβ, N = 40
 Mean (SD) 1.3 (1.5) 1.9 (1.4) 0.254
 EDSS score at start of BIW INFβ, N = 40 mean (SD) 5.3 (1.6) 5.4 (1.4) 0.804
Stable on QW INFβ prior to switch to BIW, N = 40
 Yes (%) 5 (21.7) 3 (17.6) 0.999
 No (%) 18 (78.3) 14 (82.4)
Duration of QW stability prior to switch to BIW, N = 8
 Mean years (SD) 4.2 (3.5) 5.7 (2.1) 0.540
Worsening EDSS as reason for BIW INFβ, N = 40
 Yes (%) 9 (39.1) 5 (29.4) 0.763
 No (%) 14 (60.9) 12 (70.6)
Worsening neurological exam as reason for BIW INFβ, N = 40
 Yes (%) 9 (39.1) 10 (58.8) 0.361
 No (%) 14 (60.9) 7 (41.2)