| NDI |
Cervical |
10 |
Disability |
10 questions: recreation, sleep, driving, work, concentration, headaches, reading, lifting, personal care, and pain |
| Questions scored 0–5 with 0 (no disability) and 5 (full disability) |
| Score doubled to reflect percentage; ranges from 0% (best function) to 100% (worst function) |
| Despite name, measures arm pain as well |
| mJOA score |
Cervical |
18 |
Disability |
Measures upper extremity function [5], lower extremity function [7], sensory function [3], and bladder function [3] |
| Questions address eating, shirt buttoning, walking, sensation loss, micturition difficulty |
| Higher score [18] is better function, lower score [0] is worse function [opposite of NDI] |
| Often divided into 3 categories approximately divided into: mild [>13], moderate [9–13], severe [<9] |
| NRS/VAS arm/neck |
Cervical |
2 |
Pain |
NRS is a purely numerical 11-point scale; 0 (no pain) and 10 (worst pain imaginable) |
| VAS is a visual 10 cm line; left “no pain” and right “worst pain imaginable”; distance from left is score in cm |
| Sometimes classified into mild (0–3), moderate [4–7], severe [8–10], or iterations thereof |
| EQ-5D |
General |
5 |
Quality of health state |
Designed for simple health and economical assessment; many languages; international |
| 5 dimensions of mobility, self-care, usual activities, pain/discomfort, anxiety/depression |
| Each question divided into 5 levels of severity |
| Scored into 245 distinct health states; translated to score 0 (death) to 1.0 (perfect health) |
| Contains a VAS component but rarely used |
| SF-36 PCS/MCS |
General |
36 |
Quality of health state |
Assesses global health functioning with breakdown into physical and mental health |
| Validated in many disease states and allows comparison to other diseases |
