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Table I Clinical features of patients with and without hyperamylasemia during acute gastroenteritis

From: Pancreatic hyperamylasemia during acute gastroenteritis: incidence and clinical relevance

  Hyper amylasemia Normal amylasemia   
Variables N = 50 (>115 U/L) N = 457 (≤ 115 U/L) O.R.a C.I. 95% b
Sex (M/F) 21/29 203/254 0.9 0.4–7.9
Mean age (range) 41.8 ± 20.15 (10–80) 41.4 ± 19.1 (4–92) (-) (-)
Antibiotic therapy before 9 (18%) 63 (13.7%) 1.3 0.5 – 3.0
admission     
Number 9.2 ± 5.8 7.5 ± 4.7 * (-) (-)
evacuations/day     
Duration evacuations 3.17 ± 3.9 3.48 ± 5.3 (-) (-)
before admission (days)     
Fever > 38°C 40 (80.0%) 258 (56.4%) ** 3.0 1.4–7.0
Vomiting 36 (72.0%) 287 (62.8%) 1.5 0.7–3.1
Abdominal pain 45 (90.0%) 395 (86.4%) 1.4 0.5–4.7
Severity score:     
Grade 1 10 (6.0%) 160 (94%) ° 1.0  
Grade 2 36 (11.5%) 278 (88.5%) ° 2.1  
Grade 3 4 (17.3%) 19 (82.7%) ° 2.5  
Dehydration 9 (18%) 39 (8.5%) * 2.0 0.8–4.8
Potential predisposing     
factors     
Cholelithiasis or 15 (30.0%) 49 (10.7%) ** 3.5 1.6–7.3
previous     
cholecystectomy     
Chronic gastritis and/or 11 (22.0%) 47 (10.2%) * 2.4 1.0–5.3
duodenal ulcer     
  1. * P < 0.05; ** P < 0.01;a, O.R. = Odds ratio; b C.I = Confidence interval 95%, ° Chi-square for linear trend 4.3, P < 0.05.