Table 5 Within-group NDI score comparison*
Intervention group | Control group | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sections* | Pre | Post | Pre | Post | ||||||||
Mean Rank | Sum of Ranks | Mean Rank | Sum of Ranks | d | P-value | Mean Rank | Sum of Ranks | Mean Rank | Sum of Ranks | d | P-value | |
Pain intensity | 0 | 0 | 6.50 | 78.00 | 1.79 | 0.001 | 1.50 | 1.50 | 1.50 | 1.50 | 0 | 1.000 |
Personal care (washing, dressing, etc.) | 0 | 0 | 4.00 | 28.00 | 1.16 | 0.014 | 0 | 0 | 0 | 0 | 0 | 1.000 |
Lifting | 0 | 0 | 3.50 | 21.00 | 1.01 | 0.027 | 1.50 | 3.00 | 0 | 0 | 0.570 | 0.180 |
Reading | 2.50 | 2.50 | 4.79 | 33.50 | 1.00 | 0.028 | 1.00 | 1.00 | 0 | 0 | 0.417 | 0.317 |
Headaches | 0 | 0 | 5.00 | 45.00 | 1.35 | 0.006 | 0 | 0 | 2.00 | 6.00 | 0.756 | 0.083 |
Concentration | 0 | 0 | 4.50 | 36.00 | 1.22 | 0.01 | 2.00 | 4.00 | 2.00 | 2.00 | 0.237 | 0.564 |
Work | 0 | 0 | 5.00 | 45.00 | 1.33 | 0.006 | 1.00 | 1.00 | 0 | 0 | 0.417 | 0.317 |
Driving | 0 | 0 | 5.00 | 45.00 | 1.33 | 0.007 | 1.00 | 1.00 | 0 | 0 | 0.417 | 0.317 |
Sleeping | 0 | 0 | 4.00 | 28.00 | 1.28 | 0.008 | 0 | 0 | 1.50 | 3.00 | 0.603 | 0.157 |
Recreation | 0 | 0 | 3.50 | 21.00 | 1.15 | 0.014 | 1.50 | 3.00 | 0 | 0 | 0.603 | 0.157 |
Total NDI score, MD (95% CI) | 27.08 ± 9.78 | 17.41 ± 7.10 | − 9.66 (− 6.43, − 12.89) | − 3.66 | < 0.001 | 25.41 ± 10.78 | 25.58 ± 10.38 | 0.16 (− 1.21, 0.87) | 0.015 | 0.732 | ||