| |
PNC+
|
CLIFT+
|
PNC+CLIFT+
|
|---|
|
Sensitivity (95 % CI)
|
0.20 (0.12–0.37)
|
0.32 (0.22–0.44)
|
0.15 (0.09–0.26)
|
|
Specificity (95 % CI)
|
0.95 (0.93–0.97)
|
0.95 (0.93–0.97)
|
0.99 (0.97–0.99)
|
|
PPV (95 % CI)
|
0.37 (0.23–0.54)
|
0.48 (0.34–0.62)
|
0.67 (0.42–0.85)
|
|
LR+ (95 % CI)
|
4.22 (2.24–7.96)
|
6.52 (3.83–11.10)
|
14.28 (5.04–40.46)
|
|
LR− (95 % CI)
|
0.84 (0.74–0.95)
|
0.71 (0.60–0.84)
|
0.86 (0.77–0.95)
|
-
CI confidence interval, PPV positive predictive value, LR+ likelihood ratio for positive result, LR− likelihood ratio for negative result, CLIFT Crithidia luciliae immunofluorescence test, PNC phagocytosis of necrotic cell material, MRG multicenter rheumatic group, SLE systemic lupus erythematosus
