Table 1 Appendicitis inflammatory response (AIR) score

Vomiting

1

Pain in right iliac fossa

1

Rebound tenderness/abdominal muscle defense

Slight

1

Moderate

2

Strong

3

Temperature ≥ 38.5 °C

1

Leukocyte concentration

10–14 × 10⁹/l

1

 ≥ 15 × 10⁹/l

2

Proportion neutrophils

70–84%

1

 ≥ 85%

2

CRP concentration

10–49 mg/l

1

 ≥ 50 mg/l

2

Total score

12