| |
ROC
|
95% CI
|
PRC (%)
|
PRC 95% CI
|
|---|
|
Definite NKP vs. non-NKP
|
|
Full*
|
0.90
|
0.88; 0.92
|
100%
|
–
|
|
Without peripheral
|
0.89
|
0.87; 0.91
|
3%
|
−2.5; 7.5
|
|
Without central
|
0.87
|
0.85; 0.89
|
8%
|
2.5; 12.5
|
|
Without comorbidities
|
0.89
|
0.88; 0.91
|
3%
|
−2.5; 5
|
|
Non-NKP vs. no KP
|
|
Full
|
0.70
|
0.69; 0.72
|
100%
|
–
|
|
Without peripheral
|
0.68
|
0.66; 0.69
|
10%
|
5; 20
|
|
Without central
|
0.68
|
0.66; 0.69
|
10%
|
5; 20
|
|
Without comorbidities
|
0.69
|
0.67; 0.70
|
5%
|
0; 15
|
- Abbreviations: KP Knee pain, NKP Neuropathic-like knee pain, PRC Proportional risk contribution
- ROC results for the full model including age, gender, body mass index and pain severity
- Peripheral = significant injury, nodal osteoarthritis
- Central = anxiety, depression, Pain Catastrophising Scale (by highest tertile), fatigue, fibromyalgia
- Comorbidities: hyperlipidaemia, diabetes, widespread pain
- Pain severity was not included from the second ROC analysis comparing non-NKP with no KP participants
