Table 1.
Baseline patient demographics and burden of disease.
| Interferon beta-1a treatment group | |||
| 44 mcg sc tiw (n = 279) | 30 mcg im qw (n = 274) | p value* | |
| Age in years, mean (SD) | 38.6 (8.8) | 37.7 (8.6) | 0.188 |
| Sex, n (%) | 0.269 | ||
| Men | 64 (22.9) | 74 (27.0) | |
| Women | 215 (77.1) | 200 (73.0) | |
| Race, n (%) | 0.935 | ||
| White | 258 (92.5) | 250 (91.2) | |
| Black | 12 (4.3) | 15 (5.5) | |
| Asian | 0 | 1 (0.4) | |
| Hispanic | 5 (1.8) | 4 (1.5) | |
| Other | 4 (1.4) | 4 (1.5) | |
| BOD in mm3, median (range) | 5438 (85–135276) | 6010 (391–103495) | 0.541 |
*Treatment comparisons with respect to sex and race distributions were performed using a Chi-squared test or a Fisher's Exact test, where appropriate. With respect to age and baseline BOD, an analysis of covariance model using ranked data was performed with effects for treatment.
Numbers do not add to 100% due to rounding.
BOD, burden of disease; im, intramuscular; qw, once weekly; sc, subcutaneous; SD, standard deviation; tiw, three times weekly.