Patient characteristics
| Variable | All patients* n=6750, % (n) | New admissions n=5550, % (n) | Inpatients n=1107, % (n) |
| Gender | |||
| Male | 59 (4009) | 60 (3314) | 58 (642) |
| Female | 41 (2739) | 40 (2235) | 42 (465) |
| Age years | |||
| Median (IQR) | 68 (49–81) | 65 (47–80) | 77 (65–85) |
| Mean (SD) | 64.4 (19.7) | 62.6 (20.0) | 73.4 (15.2) |
| Age group distribution | |||
| <60 | 37 (2517) | 41 (2291) | 17 (190) |
| 60–79 | 35 (2334) | 33 (1850) | 41 (450) |
| >=80 | 28 (1898) | 25 (1408) | 42 (467) |
| Haemodynamic status† | |||
| Normal (BP>100, HR <100) | 62 (4181) | 63 (3512) | 55 (604) |
| Tachycardia only (HR >100) | 22 (1497) | 23 (1257) | 20 (223) |
| 70≤BP<100 | 12 (803) | 11 (593) | 18 (204) |
| 50≤BP<70 | 1.5 (103) | 1.3 (71) | 2.7 (30) |
| BP<50 | 0.3 (23) | 0.3 (16) | 0.5 (6) |
| Not recorded | 2.1 (143) | 1.8 (101) | 3.6 (40) |
| Haemoglobin concentration g/dl† | |||
| >10.1 | 55 (3707) | 58 (3246) | 38 (419) |
| 8.1–10.0 | 18 (1192) | 16 (869) | 28 (305) |
| 7.1–8.0 | 7.9 (536) | 7.0 (388) | 13 (142) |
| <=7.0 | 12 (788) | 11 (631) | 13 (145) |
| Not recorded | 7.8 (527) | 7.5 (416) | 8.7 (96) |
| Median Hb | 11.0 (8.5–13.5) | 11.4 (8.7–13.8) | 9.5 (7.8–11.4) |
| Urea mmol/l† | |||
| <3.0 | 6.7 (454) | 7.2 (399) | 4.2 (47) |
| 3.0–6.9 | 30 (1994) | 31 (1748) | 20 (218) |
| 7.0–11.9 | 24 (1646) | 24 (1338) | 26 (292) |
| 12.0–19.9 | 17 (1170) | 17 (937) | 20 (217) |
| ≥20.0 | 10 (688) | 9.1 (506) | 16 (177) |
| Not recorded | 12 (798) | 11 (622) | 14 (156) |
| Median urea (IQR) | 8.2 (5.0–13.9) | 7.9 (4.8–13.3) | 10.1 (6.5–17.5) |
| Co-morbidity (%) | |||
| IHD grades 1–3 | 18 (1233) | 16 (894) | 28 (311) |
| IHD grade 3 | 2.9 (196) | 2.0 (111) | 7.4 (82) |
| Cardiac failure, grades 1–3 | 5.8 (390) | 4.2 (232) | 14 (150) |
| Cardiac failure, grade 3 | 0.8 (55) | 0.4 (25) | 2.7 (30) |
| Respiratory disease, grades 1–3 | 11 (742) | 10 (543) | 17 (190) |
| Respiratory disease, grade 3 | 1.3 (94) | 1.0 (57) | 3.3 (37) |
| Stroke, grades 1–3 | 7.6 (513) | 6.5 (362) | 13 (141) |
| Stroke, grade 3 | 1.0 (70) | 0.39 (22) | 4.2 (47) |
| Dementia, grades 1–3 | 5.9 (401) | 5.3 (295) | 9.0 (100) |
| Dementia, grade 3 | 2.8 (191) | 2.7 (149) | 3.5 (39) |
| Cancer, grades 1–3 | 8.3 (561) | 7.2 (398) | 14 (155) |
| Cancer, grade 3 | 3.6 (246) | 3.2 (175) | 6.3 (70) |
| Cirrhosis | 8.9 (599) | 8.7 (484) | 9.8 (108) |
| Renal disease | 8.1 (544) | 6.3 (352) | 17 (189) |
| Renal disease on dialysis | 1.2 (80) | 0.7 (41) | 3.5 (39) |
| Any of above | 50 (3389) | 46 (2551) | 71 (786) |
| Medication at presentation | |||
| Aspirin | 28 (1874) | 25 (1406) | 40 (440) |
| Warfarin | 7.0 (473) | 6.7 (372) | 8.0 (89) |
| NSAID | 11 (751) | 12 (648) | 8.5 (94) |
| SSRI | 8.2 (556) | 8.6 (480) | 6.1 (68) |
| Clopidogrel | 5.3 (359) | 4.4 (244) | 10 (110) |
| LMWH | 6.2 (416) | 1.0 (55) | 32 (359) |
| Other | |||
| History of alcohol excess | 26 (1745) | 28 (1557) | 15 (168) |
| Smoking status known | 82 (5516) | 83 (4584) | 77 (848) |
| Current smoker | 32 (1745) | 34 (1544) | 21 (179) |
| Pre-endoscopy Rockall score | |||
| 0–1 | 34 (2305) | 38 (2131) | 13 (143) |
| 2–3 | 30 (2034) | 30 (1657) | 31 (347) |
| 4–5 | 30 (2014) | 27 (1507) | 43 (478) |
| 6–7 | 5.9 (397) | 4.6 (255) | 13 (139) |
| Rockall >3 | 36 (2411) | 32 (1762) | 56 (617) |
* Includes 93 patients where source unknown.
† Values first recorded on presentation.
BP, systolic blood pressure (mm Hg); HR, heart rate/min; LMWH, low molecular weight heparin; NSAID, non-steroidal anti-inflammatory drug; SSRI, selective serotonin reuptake inhibitor.