Drug use recorded in new admissions endoscoped (n=4109)
| Any aspirin use | Any NSAID use | (Aspirin or NSAID) with PPIs | (Aspirin or NSAID) without PPIs | No record of aspirin, NSAID or PPI use | PPI use but no (aspirin or NSAID) | Warfarin on admission | ||
| Endoscopic diagnoses | N | % (n) | % (n) | % (n) | % (n) | % (n) | % (n) | % (n) |
| Peptic ulcer | 1466 | 37 (542) | 18 (265) | 27 (390) | 22 (326) | 26 (386) | 25 (364) | 7 (109) |
| Varices | 469 | 8 (38) | 5 (24) | 8 (36 | 5 (22 | 37(175) | 50 (236) | 4 (18) |
| Malignancy | 156 | 29 (46) | 6 (9) | 15 (24) | 18 (28) | 36 (56) | 31 (48) | 6 (10) |
| Oesophagitis | 938 | 25 (238) | 10 (97) | 15 (145) | 18 (168) | 39 (366) | 28 (259) | 5 (47) |
| Oesophagitis alone | 365 | 21 (76) | 8 (29) | 12 (43) | 16 (57) | 43 (157) | 30 (108) | 5 (20) |
| Gastritis/erosions | 896 | 32 (291) | 14 (125) | 20 (179) | 22 (196) | 33 (299) | 25 (222) | 8 (72) |
| Gastritis/erosions alone | 302 | 36 (108) | 17 (51) | 21 (64) | 26 (78) | 33 (99) | 20 (61) | 10 (30) |
| Erosive duodenitis | 539 | 25 (136) | 14 (78) | 15 (81) | 22 (116) | 36 (193) | 28 (149) | 7 (37) |
| Erosive duodenitis alone | 97 | 27 (26) | 14 (14) | 12 (12) | 26 (25) | 41 (40) | 21 (20) | 9 (9) |
| Mallory–Weiss | 192 | 27 (52) | 8 (15) | 18 (35) | 15 (28) | 38 (73) | 29 (56) | 7 (14) |
| Mallory–Weiss alone | 98 | 22 (22) | 6 (6) | 11 (11) | 15 (15) | 45 (44) | 29 (28) | 9 (9) |
| Other* (any) | 109 | 21 (23) | 9 (10) | 11 (12) | 17 (18) | 42 (46) | 30 (33) | 10 (11) |
| No abnormality seen | 712 | 24 (174) | 13 (91) | 15 (110) | 18 (128) | 42 (298) | 25 (176) | 9 (65) |
* Includes vascular ectasia, haemobilia.