Amor et al studied factors associated with outcome in patients with spondyloarthropathy. The authors are from Rene Descartes University in Paris, France.
Parameters identified during univariate analysis:
(1) hip arthritis
(2) erythrocyte sedimentation rate
(3) efficacy of NSAIDS
(4) lumbar spine movement
(5) sausage-like finger or toe
(6) oligoarthritis
(7) age of onset
|
Parameter |
Finding |
Points |
|---|---|---|
|
hip arthritis |
absent |
0 |
|
|
present |
4 |
|
erythrocyte sedimentation rate (ESR) |
<= 30 mm/h |
0 |
|
|
> 30 mm/h |
3 |
|
efficacy of NSAIDS |
fair to excellent |
0 |
|
|
poor |
3 |
|
lumbar axis |
no limitations |
0 |
|
|
limitation |
3 |
|
sausage-like finger or toe |
absent |
0 |
|
|
present |
2 |
|
oligoarthritis |
absent |
0 |
|
|
present |
1 |
|
age of onset |
<= 16 years |
1 |
|
|
> 16 years |
0 |
number of factors present =
= SUM(parameters with positive findings)
score =
= SUM(points for all 7 items)
Interpretation:
• minimum score: 0
• maximum score: 17
|
Data |
Outcome |
Sensitivity |
Specificity |
|---|---|---|---|
|
no factors present (score 0) |
mild |
92.5% |
78% |
|
score <= 3 at entry |
mild |
92.5% |
78% |
|
hip arthritis present |
severe; mild outcome excluded |
50% |
|
|
3 factors present |
severe; mild outcome excluded |
50% |
|
|
score >= 7 at entry |
severe |
50% |
97.5% |
Purpose: To predict the outcome for a patient with spondyloarthropathy using the predictive factors identified by Amor et al.
Specialty: Immunology/Rheumatology
Objective: severity, prognosis, stage
ICD-10: M45,
