TABLE 3.
Change in Scores Between Visits
| Assessment | Change in… | N | Mean | SD | Effect Size | Range | p-value* |
|---|---|---|---|---|---|---|---|
| 2 vs 1 | PROMIS | ||||||
| Pain Behavior T-Score | 83 | −5.94 | 7.42 | −28, 6.2 | <0.001 | ||
| Pain Interference T-Score | 84 | −7.95 | 9.45 | −33.1, 19.2 | <0.001 | ||
| Physical Function T-Score | 83 | 3.50 | 8.23 | −17.4, 27.8 | <0.001 | ||
| Oswestry | |||||||
| Oswestry Disability Index (ODI) | 79 | −11.43 | 17.42 | −53.6, 24 | <0.001 | ||
| Zurich | |||||||
| Symptom Severity - Pain (1–5) | 83 | −1.09 | 0.99 | −3.7,1.0 | <0.001 | ||
| Symptom Severity - Neuroischemic (1–5) | 83 | −0.89 | 0.92 | −3.5, 1.2 | <0.001 | ||
| Symptom Severity - Total (1–5) | 84 | −0.98 | 0.82 | −3.6, 0.7 | <0.001 | ||
| Physical Function (1–4) | 84 | −0.78 | 0.76 | −2.6, 1.2 | <0.001 | ||
| SF-12 | |||||||
| Physical Component Score | 83 | 5.04 | 10.72 | −24.8, 34.5 | <0.001 | ||
| Mental Component Score | 82 | 3.16 | 11.14 | −42.2, 28.1 | 0.012 | ||
| 3 vs 2 | PROMIS | ||||||
| Pain Behavior T-Score | 78 | −0.55 | 9.02 | −27.2, 21.9 | 0.594 | ||
| Pain Interference T-Score | 79 | −1.00 | 9.97 | −21.8, 29.4 | 0.377 | ||
| Physical Function T-Score | 79 | 3.03 | 6.40 | −16.3, 19.8 | <0.001 | ||
| Oswestry | |||||||
| Oswestry Disability Index (ODI) | 75 | −7.12 | 14.96 | −73.1, 18 | <0.001 | ||
| Zurich | |||||||
| Symptom Severity - Pain (1–5) | 77 | −0.21 | 0.73 | −2.3, 1.3 | 0.015 | ||
| Symptom Severity - Neuroischemic (1–5) | 77 | −0.06 | 0.62 | −1.8, 2.0 | 0.358 | ||
| Symptom Severity - Total (1–5) | 78 | −0.12 | 0.47 | −1.4, 0.9 | 0.022 | ||
| Physical Function (1–4) | 78 | −0.19 | 0.52 | −1.4, 1.2 | 0.002 | ||
| SF-12 | |||||||
| Physical Component Score | 78 | 3.22 | 9.39 | −27.5, 25.1 | 0.003 | ||
| Mental Component Score | 78 | 2.21 | 10.33 | −16.6, 40.6 | 0.062 | ||
| 3 vs 1 | PROMIS | ||||||
| Pain Behavior T-Score | 86 | −6.66 | 9.49 | −0.70 | −34.2, 23.9 | <0.001 | |
| Pain Interference T-Score | 86 | −9.62 | 10.95 | −0.88 | −36.1, 15.2 | <0.001 | |
| Physical Function T-Score | 87 | 6.80 | 7.06 | 0.96 | −5.8, 24.6 | <0.001 | |
| Oswestry | |||||||
| Oswestry Disability Index (ODI) | 85 | −19.00 | 19.87 | −0.96 | −70, 35.6 | <0.001 | |
| Zurich | |||||||
| Symptom Severity - Pain (1–5) | 87 | −1.31 | 1.03 | −1.27 | −3.67, 1 | <0.001 | |
| Symptom Severity - Neuroischemic (1–5) | 86 | −0.95 | 0.99 | −0.96 | −3.5, 1.5 | <0.001 | |
| Symptom Severity - Total (1–5) | 87 | −1.10 | 0.87 | −1.26 | −3.6, 0.6 | <0.001 | |
| Physical Function (1–4) | 87 | −0.96 | 0.70 | −1.37 | −2.6, 0.6 | <0.001 | |
| SF-12 | |||||||
| Physical Component Score | 86 | 8.57 | 10.84 | 0.79 | −20.7, 36.4 | <0.001 | |
| Mental Component Score | 85 | 5.04 | 9.08 | 0.56 | −13.1, 29.1 | <0.001 |
*
P-value for t test of null hypotheses that mean change = 0.