Table 3.
Test-Retest Reliability Data Generated from Repeated Survey Administration
| Anatomic Region | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Question | Neck κ (Po) | Shoulders κ (Po) | Elbows κ (Po) | Wrists/Hands κ (Po) | Upper Back κ (Po) | Lower Back κ (Po) | Hips/Thighs κ (Po) | Knees κ (Po) | Ankles/Feet κ (Po) | Compiled † κ (Po) |
| Have you at any time during the last 12 months had trouble (ache, pain, discomfort) in your…? | 0.842 (0.933) |
0.602 (0.800) |
1.0 (1.0) | 0.815 (0.933) |
0.842 (0.933) |
0.737 (0.867) |
1.0 (1.0) | 1.0 (1.0) | 0.634 (0.933) |
0.839 (0.933) |
| Have you at any time during the last 12 months been prevented from doing your normal work (at home or away from home) because of your symptoms? | * (0.900) | 1.0 (1.0) | 0.400 (0.667) |
1.0 (1.0) | * (0.857) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 0.618 (0.914) |
|
| Have you had trouble at any time during the last 7 days? | 0.194 (0.500) |
0.333 (0.667) |
0.400 (0.667) |
* (0.75) | -0.077(0.429) | 1.0 (1.0) | -0.800 (0) |
* (0) | 0.007 (0.514) |
|
| Symptom characterization: | ||||||||||
| Pain | * (0.800) | 1.0 (1.0) | 1.0 (1.0) | * (0.75) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 0.356 (0.914) |
|
| Stiffness | * (0.800) | 0.250 (0.667) |
* (0.333) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 0.400 (0.667) |
1.0 (1.0) | 0.595 (0.800) |
|
| Weakness | * (0.800) | * (0.833) | 1.0 (1.0) | 1.0 (1.0) | * (0.857) | 1.0 (1.0) | * (0.667) | 1.0 (1.0) | * (0.886) | |
| Paresthesia | 1.0 (1.0) | 1.0 (1.0) | 0.400 (0.667) |
1.0 (1.0) | * (0.857) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 0.635 (0.943) |
|
| Other | * (0.9) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | * (0.971) | |
| Symptom severity (mild vs. moderate vs. severe) | 0.348 (0.700) |
0 (0.5) | 1.0 (1.0) | 0.500 (0.75) |
0.696 (0.857) |
1.0 (1.0) | 0.400 (0.667) |
1.0 (1.0) | 0.460 (0.743) |
|
| Have you ever had to stop operating as a result of your symptoms? | 1.0 (1.0) | * (0.833) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 0.785 (0.971) |
|
| Have you ever lost time from work due to symptoms? | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | 1.0 (1.0) | |
| Do you attribute your symptoms to your work as a surgeon? (yes vs. no vs. unsure) | 0.615 (0.800) |
0.739 (0.833) |
1.0 (1.0) | 0.500 (0.75) |
* (0.571) | 1.0 (1.0) | 0.400 (0.667) |
1.0 (1.0) | 0.651 (0.771) |
|
κ
Kappa statistic (measure of test-retest agreement between repeated administrations of the survey). Po Percent observed agreement between repeated administrations of the survey.
†
Compiled statistics across anatomic regions by question type.
*
Kappa statistic undefined due to an initial prevalence or retest prevalence of zero.