Table 1 Basic characteristics
ERAT group (n = 33) | LA group (n = 33) | OA group (n = 33) | P value | |
|---|---|---|---|---|
Age, mean (SD), years | 44.12 ± 16.95 | 43.24 ± 15.41 | 45.45 ± 18.04 | 0.866 |
Male, n (%) | 18 (54.55) | 17 (51.52) | 19 (57.58) | 0.967 |
Abdominal surgery history, n (%) | 8 (24.24) | 8 (24.24) | 7 (21.21) | > 0.999 |
Symptoms | ||||
Migrated right lower abdominal pain, n (%) | 29 (87.88) | 22 (66.67) | 25 (75.76) | 0.142 |
Nausea, n (%) | 22 (66.67) | 23 (69.70) | 17 (51.52) | 0.285 |
Vomiting, n (%) | 5 (15.15) | 4 (12.12) | 9 (27.27) | 0.345 |
Anorexia, n (%) | 33 (100) | 32 (96.97) | 32 (96.97) | > 0.999 |
Fever, n (%) | 18 (54.55) | 13 (39.39) | 17 (51.52) | 0.532 |
Temperature (℃) | 37.37 ± 0.77 | 37.13 ± 0.57 | 37.22 ± 0.58 | 0.317 |
Signs | ||||
Right lower abdominal tenderness, n (%) | 33 (100) | 33 (100) | 33 (100) | |
Rebound tenderness, n (%) | 17 (51.52) | 15 (45.45) | 20 (57.58) | 0.654 |
Laboratory examination | ||||
WBC count (× 109/L) | 11.78 ± 3.84 | 11.87 ± 3.80 | 13.64 ± 3.87 | 0.091 |
Neutrophil percentages, median (25th, 75th percentile) | 0.84 (0.78, 0.87) | 0.81 (0.76,0.85) | 0.83 (0.76, 0.90) | 0.233 |
CRP (mg/L) | 0.749 | |||
0–20 | 18 (54.6) | 20 (60.6) | 25 (75.76) | |
21–50 | 7 (21.2) | 7 (21.2) | 6 (18.18) | |
> 50 | 8 (24.2) | 6 (18.2) | 2 (6.06) | |
CT scan | ||||
Local Cecal Wall thickening, n (%) | 4 (12.12) | 0 (0) | 1 (3.03) | 0.123 |
Periappendiceal fat inflammation, n (%) | 25 (75.76) | 27 (81.82) | 29 (87.88) | 0.496 |
Intraluminal appendicolith, n (%) | 12 (36.36) | 16 (48.48) | 11 (33.33) | 0.516 |
Alvarado scores, median (25th, 75th percentile) | 8 (7, 9) | 8 (6, 9) | 8 (7, 9) | 0.127 |
VAS scores, median (25th,75th percentile) | 6 (5, 7) | 7 (6, 7) | 6 (6, 7) | 0.054 |