Table 2.
Distribution of patients meeting 2-year NDI, SF-36 PCS/MCS improvement based on ANRs at baseline.
|
Arm < Neck (n = 99) |
Arm > Neck (n = 156) |
Pa |
|
| NDI 2-yr 50% improvement | 30.0% | 39.2% | .050 |
| SF-36 PCS 2-yr 10% improvement | 42.4% | 53.5% | .025 |
| SF-36 MCS 2-yr 10% improvement | 46.9% | 37.0% | .041 |
Abbreviations: ANR, arm-to-neck pain ratio; NDI, neck disability index; SF-36 MCS, Short-Form 36 Mental Component Summary; SF-36 PCS, Short-Form 36 Physical Component Summary.
a
Difference between arm ≤ neck and arm > neck. Bold indicates significant values.