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Comparison of serum amylase levels between cases and controls
| Amylase value (U/L) | Control | Case |
|---|---|---|
| Normal amylase | 100 (97.1) | 119 (67.6) |
| 1–3 Times upper level of normal amylase | 3 (2.9) | 45 (25.6) |
| > 3 Times upper level of normal amylase | 0 (0) | 12 (6.8) |
U/L = units per litre
