Baseline SF-36 score distributions
| SF-36 (scale range 0–100) | Total sample (n=149) |
Mild (n=47) | Moderate (n=51) | Severe (n=51) |
| Dimensions | ||||
| Physical function: | ||||
| Sample range | 0–100 | 5–100 | 0–65 | 0–20 |
| Mean (SD) | 27.9 (28.1) | 58.7 (24.6) | 22.9 (16.1) | 4.4 (6.0) |
| Floor/ceiling effect (%) | 21/2 | 0/6 | 10/0 | 52/0 |
| Emotional wellbeing: | ||||
| Sample range | 0–100 | 24–100 | 4–100 | 0–92 |
| Mean (SD) | 66.7 (19.8) | 66.0 (18.3) | 70.4 (22.4) | 63.0 (18.0) |
| Floor/ceiling effect (%) | 1/3 | 0/2 | 0/6 | 2/0 |
| Role limitations physical: | ||||
| Sample range | 0–100 | 0–100 | 0–100 | 0–100 |
| Mean (SD) | 29.1 (38.9) | 50 (41.7) | 28.5(37.1) | 10.5 (27.2) |
| Floor/ceiling effect (%) | 53/18 | 25/34 | 50/16 | 84/6 |
| Role limitations emotional: | ||||
| Sample range | 0–100 | 0–100 | 0–100 | 0–100 |
| Mean (SD) | 59.1 (43.2) | 58.9 (41.8) | 62.1 (42.2) | 55.3 (45.9) |
| Floor/ceiling effect (%) | 27/47 | 23/45 | 24/49 | 36/46 |
| Social function: | ||||
| Sample range | 0–88.9 | 0–88.9 | 0–88.9 | 0–88.9 |
| Mean (SD) | 49.7 (26.6) | 58.9 (24.3) | 51.8 (22.4) | 38.9 (29.4) |
| Floor/ceiling effect (%) | 8/0 | 4/0 | 2/0 | 18/0 |
| Bodily pain: | ||||
| Sample range | 0–100 | 12–100 | 10–100 | 0–100 |
| Mean (SD) | 62.8 (29.6) | 65.5 (25.5) | 64.5 (30.7) | 58.3 (32.3) |
| Floor/ceiling effect (%) | 2/28 | 0/25 | 0/33 | 6/26 |
| Vitality and energy: | ||||
| Sample range | 0–100 | 0–100 | 10–95 | 0–90 |
| Mean (SD) | 43.6 (22.0) | 45.1 (22.2) | 44.3 (21.9) | 41.3 (22.4) |
| Floor/ceiling effect (%) | 1/1 | 2/2 | 0/0 | 2/0 |
| General health perceptions: | ||||
| Sample range | 5–100 | 20–90 | 5–87 | 5–100 |
| Mean (SD) | 50.0 (22.8) | 56.7 (18.9) | 45.9 (20.8) | 48.1 (27.1) |
| Floor/ceiling effect (%) | 0/1 | 0/0 | 0/0 | 0/2 |
| SF-36 PCS: | ||||
| Sample range | 9.2–56.9 | 24.3–56.9 | 9.2–47.3 | 9.7–40.2 |
| Mean (SD) | 31.8 (10.6) | 40.9 (9.5) | 29.9 (8.7) | 25.3 (6.8) |
| Floor/ceiling effect (%) | 0/0 | 0/0 | 0/0 | 0/0 |
| SF-36 MCS: | ||||
| Sample range | 15.9–73.0 | 16.9–62.6 | 22.3–73.0 | 15.9–72.4 |
| Mean (SD) | 47.1 (12.2) | 44.2 (11.8) | 49.4 (12.6) | 47.3 (11.6) |
| Floor/ceiling effect (%) | 0/0 | 0/0 | 0/0 | 0/0 |
PCS=Physical component summary scale; MCS=emotional component summary scale;
Mild=EDSS 0–4.5; Moderate=EDSS 5.0–6.5; Severe=EDSS 7.0–9.5.