British Isles Lupus Assessment Group (BILAG) developed an index for evaluating disease activity in patients with systemic lupus erythematosus (SLE). The index is based on several findings, each of which is categorized. The authors are from multiple universities in Great Britain.
Patient selection: followup assessment
Categories based on 24 hour urine
|
Current |
Previous |
Comment |
Category |
|
> 1 g/d |
> 0.2 g/d |
rising |
A |
|
> 1 g/d |
>= 1 g/d |
current/previous >= 2 (increase 100%) |
A |
|
> 1 g/d |
< 1 g/d |
NA |
A |
|
> 1 g/d |
>= 1 g/d |
current/previous >= 1.5 |
B |
|
> 0.25 g/d |
NA |
not meeting A or B |
C |
|
normal |
abnormal |
NA |
D |
|
normal |
normal |
NA |
E |
Categories based on urine dipstick
|
Current |
Previous |
Comment |
Category |
|
4+ |
<=2+ |
increased by 2 |
A |
|
3+ |
<= 1+ |
increase by 2 |
A |
|
2+ |
<= trace |
increase by 2 |
A |
|
2+ or more |
NA |
not meeting A |
B |
|
1+ or more |
NA |
not meeting A |
C |
|
normal |
abnormal |
NA |
D |
|
normal |
normal |
NA |
E |
Purpose: To determine the BILAG category for renal involvement on a followup exam in a patient with systemic lupus erythematosus (SLE).
Specialty: Immunology/Rheumatology
Objective: severity, prognosis, stage, differential diagnosis and mimics, red flags, disease progression, prevention
ICD-10: M32,
