Table 2.
Diagnostic accuracy, sensitivity, specificity, and positive (PPV) of white blood cell (WBC) count, C-reactive protein (CRP), percentage of neutrophil (PN) and combined WBC, CRP and PN in diagnosing acute appendicitis
|
Indices of diagnostic values | ||||
|---|---|---|---|---|
| Diagnostic method | Diagnostic accuracy | Sensitivity (%) | Specificity (%) | PPV (%) |
|
CRP |
83.2 |
85.1 |
72 |
94.7 |
|
WBC |
82.6 |
85.1 |
68 |
94 |
|
PN |
77.5 |
79.1 |
68 |
93.6 |
|
CRP + LEU |
90.1 |
92.6 |
75 |
95.8 |
|
CRP + PN |
91.1 |
94.3 |
72 |
95.2 |
|
LEU + PN |
87.1 |
89.9 |
71.4 |
94.7 |
| CRP + LEU + PN | 91.9 | 95.3 | 91.9 | 95.3 |