Table 1.
Basic clinical and demographic comparisons of patients in BMI groups.
| BMI categories |
||||
|---|---|---|---|---|
| ≤18.5 | 18.5–30 | >30 | p-Value | |
| Number | 668 | 4,772 | 158 | |
| Age at last clinic assessment [mean (SD)] | 51 (11.19) | 48 (11.08) | 42 (10.12) | <0.001 |
| Onset age [mean (SD)] | 35 (9.53) | 34 (8.95) | 30 (6.99) | <0.001 |
| Follow-up time [mean (SD)] | 15 (10.03) | 14 (9.45) | 11 (8.35) | <0.001 |
| Calendar year of birth [mean (SD)] | 1956 (11.89) | 1960 (12.23) | 1967 (10.85) | <0.001 |
| Calendar year of onset [mean (SD)] | 1991 (11.74) | 1994 (11.07) | 1998 (9.14) | <0.001 |
| Sex (female %) | 609 (91.2) | 3,421 (71.7) | 115 (72.8) | <0.001 |
| Transited to secondary progression (%) | 295 (44.2) | 1,663 (34.8) | 43 (27.2) | <0.001 |
| Used smokeless tobacco (%) | 16 (2.4) | 532 (11.1) | 21 (13.3) | <0.001 |
| Smoking (ever smoked %) | 431 (64.5) | 2,757 (57.8) | 94 (59.5) | 0.004 |
| Ever treated with immunomodulatory treatments (%) | 464 (69.5) | 3,673 (77.0) | 133 (84.2) | <0.001 |
| Duration of treatment [years, mean (SD)] | 5.47 (3.88) | 5.37 (3.52) | 5.41 (2.76) | 0.947 |
BMI, body mass index.