TABLE 1.
Demographic and clinical characteristics of patients included in the study (n = 1768).
| Data completeness, n (%) | ||
|---|---|---|
| Sex, n (%) | 1768 (100) | |
| Male | 885 (50) | |
| Female | 883 (50) | |
| Median age, years (IQR) | 56 (41–72) | 1768 (100) |
| Age category, n (%) | 1768 (100) | |
| <30 | 154 (9) | |
| 30–40 | 238 (13) | |
| 40–50 | 270 (15) | |
| 50–60 | 339 (19) | |
| 60–70 | 263 (15) | |
| 70–80 | 263 (15) | |
| >80 | 241 (14) | |
| Continent, n (%) | 1768 (100) | |
| Asia | 226 (13) | |
| Africa | 17 (1) | |
| Australia | 177 (10) | |
| Europe | 1316 (75) | |
| North America | 25 (1) | |
| South America | 7 (0) | |
| Ethnicity | 1728 (98) | |
| Asian | 312 (18) | |
| Black | 45 (3) | |
| Caucasian | 1250 (72) | |
| Other | 121 (7) | |
| Aetiology, n (%) a | 1768 (100) | |
| Biliary | 1041 (59) | |
| Alcohol | 332 (19) | |
| Post ERCP | 59 (3) | |
| Hypertriglyceridemia | 56 (3) | |
| Other | 345 (20) | |
| Predicted severity at admission, n (%) | 1369 (77) | |
| Mild AP | 1068 (78) | |
| Severe AP | 301 (22) | |
| Median CCI‐score (IQR) | 2 (0–4) | 1722 (97) |
| CCI Category, n (%) | 1722 (97) | |
| 0 | 582 (34) | |
| 1–2 | 496 (29) | |
| >2 | 644 (37) | |
| Median pain severity at admission, NRS (IQR) | 7 (5–8) | 1465 (83) |
| Pain duration prior to admission, n (%) | 1743 (99) | |
| <12 h | 467 (27) | |
| 12–24 h | 498 (28) | |
| >24 h | 778 (45) | |
| Timing of opioid treatment, n (%) | 1768 (100) | |
| No opioid given during admission | 565 (32) | |
| Opioid administered on admission day | 1036 (59) | |
| Opioid administered after admission day | 167 (9) | |
| Opioid administered during admission, n (%) | 1768 (100) | |
| No opioid administered | 565 (32) | |
| Weak opioid | 314 (18) | |
| Strong opioid | 889 (50) | |
| Median duration of opioid treatment, days (IQR) | 2 (0–4) | 1735 (98) |
Abbreviations: CCI, Charlson Comorbidity Index; IQR, interquartile range; NRS, numeric rating scale.
a
A subset of patients had overlapping aetiological risk factors.