Summary of patient characteristics among MSAP and SAP populations
| Study population | Age (mean): n studies, range | Gender: male n studies, range | Aetiology of pancreatitis* n studies, range | Severity score at critical care admission† n studies, range | Duration of symptom since admission | ||||||
| Alcohol | Biliary as reported | Gallstone as reported | Overall biliary | Idiopathic | APACHE II | Ranson | BISAP | ||||
| USA | |||||||||||
| MSAP (three studies) | Three studies: 51–58‡ | Three studies: 47%–52% | Three studies: 18%–22% | One study: 31% | Two studies: 35%–44% | 31%–44% | Three studies: 17%–26% | One study: 9 | NR | NR | NR |
| SAP (six studies) | Six studies: 46–62‡ | Four studies: 46%–60% | Four studies: 17%–33% | Three studies: 31%–45% | Two studies: 40%–44% | 31%–45% | Three studies: 13%–20% | Three studies: 11–13.9 | One study: 4.8 | NR | NR |
| EU-5 | |||||||||||
| MSAP (one study) | One study: 57 | One study: 58.3% | One study: 16.7% | NR | One study: 41.7% | 41.7% | One study: 8.3% | One study: 6.13 | One study: 1.78 | NR | NR |
| SAP (12 studies) | Eleven studies: 54–66 | Eleven studies: 45%–71% | Nine studies: 8.4% Outlier: 40% | Seven studies: 33%–61.1% | Three studies: 44.6%–50% | 33%–61.1% | Three studies: 3%–13.6% | Four studies: 7.24–17 | Three studies: 1.86–3.8 | NR | NR |
*Other less common aetiologies reported across studies were summarised narratively only.
†Other less common severity assessment tools and their scores were summarised narratively only.
‡Median value.
APACHE, Acute Physiology and Chronic Health Evaluation; BISAP, Bedside Index of Severity in Acute Pancreatitis; EU-5, European Union-5; MSAP, moderately severe acute pancreatitis; NR, not reported; SAP, severe acute pancreatitis; USA, United States of America.