Table 1.
Clinical diagnostic scores: Alvarado, AIRS, and AAS.
| Alvarado | AIRS | AAS | ||
|---|---|---|---|---|
| Migration/relocation of pain | 1 | – | 2 | |
| Anorexia | 1 | – | – | |
| Nausea/vomiting | 1 | – | – | |
| Vomiting | – | 1 | – | |
| Pain in RIF/RLQ | 2 | 1 | 2 | |
| Rebound pain/tenderness: | Mild | 1 | 1 | – |
| Moderate | 1 | 2 | – | |
| Severe | 1 | 3 | – | |
| Guarding: | Mild | – | – | 2 |
| Moderate/severe | – | – | 4 | |
| RLQ tenderness: | Women (16–49 years) | – | – | 1 |
| All other patients | – | – | 3 | |
| Elevated temperature | 1 (>37.5 °C) | 1 (>38.5 °C) | – | |
| WBC (×109) | 7.2–10 | – | – | 1 |
| 10–10.9 | 2 | 1 | 1 | |
| 10.9–14 | 2 | 1 | 2 | |
| 14–15 | 2 | 1 | 3 | |
| ⩾15 | 2 | 2 | 3 | |
| Shift of WBC to the left (>75% neutrophils) | 1 | – | – | |
| Polymorphonuclear leukocytes | – | 0 (<70%) | 2 (62%–75%) | |
| 1 (70%–84%) | 3 (75%–83%) | |||
| 2 (⩾85%) | 4 (⩾83%) | |||
| CRP level, mg/L for symptoms <24 h | – | 0 (<10) | 2 (4–11) | |
| 1 (10–49) | 3 (11–25) | |||
| 2 (⩾50) | 5 (25–83) | |||
| 1 (⩾83) | ||||
| CRP level, mg/L for symptoms >24 h | – | 0 (<10) | 0 (<12) | |
| 1 (10–49) | 2 (12–152) | |||
| 2 (⩾50) | 1 (⩾152) | |||
AAS: adult appendicitis score; AIRS: appendicitis inflammatory response score; CRP: C-reactive protein; RIF: right iliac fossa; RLQ: right lower abdominal quadrant; WBC: white blood cell.