Case Control Study
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©The Author(s) 2019. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Feb 28, 2019; 25(8): 967-979
Published online Feb 28, 2019. doi: 10.3748/wjg.v25.i8.967
Table 1 Basic demographic characteristics n (%)
Drug-induced colitis, n = 211 Non-inflammatory controls, n = 211 Inflammatory controls, n = 211 Basic characteristics Age (yr) 62.3 ± 16.4 62.2 ± 16.3 61.8 ±15.7 Gender (male) 97 (46.0) 97 (46.0) 97 (46.0) Height (cm) 168.9 ± 9.5 168.3 ± 12.4 170.0 ± 9.3 Body weight (kg) 76.9 ± 22.6 75.0 ± 20.3 72.9 ± 19.7 BMI (kg/m2 ) 26.9 ± 7.2a 1 b 26.3 ± 6.8 25.0 ± 5.6a 3 ASAb 2 ASA 1 0 (0) 3 (1.4) 0 (0) ASA 2 133 (63.0) 169 (80.1) 155 (73.5) ASA 3 70 (33.2) 37 (17.5) 52 (24.6) ASA 4 8 (3.8) 2 (0.9) 4 (1.9) ECOGb 2 ,b 3 ECOG 0 0 (0) 1 (0.5) 2 (0.9) ECOG 1 8 (3.8) 75 (35.5) 13 (6.2) ECOG 2 149 (70.6) 104 (49.3) 147 (69.7) ECOG 3 41 (19.4) 26 (12.3) 43 (20.4) ECOG 4 13 (6.2) 5 (2.4) 6 (2.8) Indication of colonoscopyb 1 ,a 2 Diarrhoea 73 (34.6) 95 (45.0) 97 (46.0) Constipation 6 (2.8) 5 (2.4) 1 (0.5) Gastrointestinal bleeding 63 (29.9) 31 (14.6) 36 (17.1) Abdominal pain 47 (22.3) 54 (25.6) 46 (21.8) Weight loss 6 (2.8) 5 (2.4) 4 (1.9) Scheduled survey 2 (0.9) 1 (0.5) 2 (0.9) Miscellaneous 14 (6.6) 20 (9.5) 25 (11.8)
Table 2 Comorbidities n (%)
Comorbidity Drug-induced colitis, n = 211 Non-inflammatory controls, n = 211 Inflammatory controls, n = 211 Pulmonary 39 (18.5) 31 (14.7) 37 (17.5) Cardiac 110 (52.1) 93 (44.1) 87 (41.2) Neurological 27 (12.8) 23 (10.9) 19 (9.0) Psychiatric 10 (4.7) 9 (4.3) 10 (4.7) Endocrine 47 (22.3) 44 (20.9) 30 (14.2) Renal 28 (13.2) 18 (8.5) 21 (10.0) Hepatic 11 (5.2) 13 (6.2) 11 (5.2) Oncological 14 (6.6) 25 (11.8) 17 (8.1) Other 19 (9.0) 15 (7.1) 16 (7.6) Heart failure 35 (16.6) 16 (7.6)b 2 31 (14.7)a 3 Renal insufficiency 24 (11.4) 14 (6.6) 18 (8.5) Atrial fibrillation 26 (12.3) 18 (8.5) 22 (10.4) Coronary heart disease 47 (22.3) 28 (13.3)a 2 35 (16.6) Peripheral arterial occlusive disease 7 (3.3) 10 (4.7) 11 (5.2) Atherosclerosis 74 (35.1)b 1 39 (18.5)b 2 40 (19.0) Arterial hypertension 98 (46.4) 97 (46.0) 87 (41.2) Diabetes mellitus 46 (21.8) 45 (21.3) 32 (15.2) Hypercholesterinaemia 20 (9.5) 16 (7.6) 18 (8.5) Hyperlipoproteinaemia 22 (10.4)a 1 11 (5.2)a 2 9 (4.3) Chronic obstructive lung disease 29 (13.7) 24 (11.4) 27 (12.8) Stroke 14 (6.6) 9 (4.3) 11 (5.2) Smoking 77 (36.7) 66 (31.3) 78 (37.0) Surgery 9 (4.3) 1 (0.5)a 2 3 (1.4) Intensive care therapy 9 (4.3) 2 (0.9)a 2 4 (3.1)
Table 3 Histopathological reassessment n (%)
Parameter (n = 28) Drug-induced colitis without atherosclerosis Drug-induced colitis with atherosclerosis Ischaemic colitis Oedema 2 (7.1) 2 (7.1) 4 (14.3) Haemorrhage 1 (3.6)a 2 8 (28.6)a 1 6 (21.4) Lymphocytic infiltration 27 (96.4) 27 (96.4) 27 (96.4) Granulocytic infiltration 27 (96.4) 26 (92.9) 28 (100.0) Eosinophilic infiltration 12 (42.9)b 2 7 (25.0) 1 (3.6)a 3 Erosions 2 (7.1)b 2 9 (32.1)a 1 10 (35.7) Ulcerous lesions 4 (14.3)b 2 3 (10.7) 16 (57.1)b 3 Necrosis 1 (3.6)b 2 1 (3.6) 16 (57.1)b 3 Fibrin plaques on erosions 2 (7.1) 2 (7.1) 3 (10.7) Fibrosis 3 (10.7) 3 (10.7) 7 (25.0)
Table 4 Drug assessment n (%)
Group Drug-induced colitis, n = 211 Non-inflammatory controls, n = 211 Inflammatory controls, n = 211 Betablocker 97 (46.0) 78 (37.0) 83 (39.3) ACE inhibitors 70 (33.2) 55 (26.1) 62 (29.4) Angiotensin II inhibitors 20 (9.5)b 1 24 (11.4) 6 (2.8)b 3 Non-Dihydropyridines 1 (0.5)a 1 6 (2.8) 7 (3.3) Dihydropyridines 34 (16.1)a 1 27 (12.8) 20 (9.5) Diuretics 55 (26.1)b 1 29 (13.7)b 2 33 (15.7) Benzothiazines 28 (13.3) 33 (15.6) 24 (11.4) Aldosterone antagonists 13 (6.2) 13 (6.2) 12 (5.7) Nitrates 7 (3.3) 13 (6.2) 5 (2.4) Antiarrhythmic drugs 7 (3.3) 2 (0.9) 2 (0.9) Glycosides 10 (4.7) 2 (0.9)a 2 8 (3.8) ASS (100 mg to 300 mg) 67 (31.8)b 1 47 (22.3)a 2 40 (19.0) Platelet aggregation inhibitors 20 (9.5)b 1 10 (4.7) 6 (2.8) NSAIDs 35 (16.6)b 1 21 (10.0)a 2 8 (3.8)a 3 Metamizole 21 (10.0) 16 (7.6) 21 (10.0) Potassium 4 (1.9) 3 (1.4) 6 (2.8) Vitman K antagonists/coumarin derivates 16 (7.6) 9 (4.3) 11 (5.2) Direct thrombin inhibitors 6 (2.8) 2 (0.9) 4 (1.9) Glucocorticosteroids 13 (6.2)b 1 14 (6.6) 41 (19.4)b 3 Opioids 20 (9.5) 22 (10.4) 23 (10.9) Metformin 8 (3.8) 16 (7.6) 4 (1.9)b 3 Insulin 17 (8.1) 15 (7.1) 17 (8.1) Statins 56 (26.5)a 1 42 (19.9) 38 (18.0) Fibrates 7 (3.3)a 1 1 (0.5)a 2 1 (0.5) Levothyroxine 25 (11.8) 39 (18.5) 22 (10.4)a 3 Thyreostatics 3 (1.4) 3 (1.4) 1 (0.5) Proton pump inhibitors 100 (47.4) 85 (40.3) 81 (38.4) Penicillin derivates 0 (0.0) 2 (0.9) 2 (0.9) Macrolides 0 (0.0) 1 (0.5) 1 (0.5) Gyrase inhibitor 0 (0.0) 0 (0.0) 0 (0.0) Carbapenems 1 (0.5) 0 (0.0) 0 (0.0) Imidazoles 3 (1.4) 1 (0.5) 1 (0.5) Cephalosporins 2 (0.9) 2 (0.9) 2 (0.9) Antbiotics 4 (1.9) 5 (2.4) 3 (1.4) SSRIs 14 (6.6) 5 (2.4)a 2 16 (7.6)a 3 Tricyclic antidepressants 7 (3.3) 10 (4.7) 7 (3.3) Neuroleptics 5 (2.4) 8 (3.8) 6 (2.8) Sedatives 16 (7.6) 16 (7.6) 16 (7.6) Others 127 (60.2)a 1 125 (59.2) 147 (69.7)a 3 Number of drugsb 4.5 ± 2.8 3.9 ± 3.0a 2 3.9 ± 3.2
Table 5 Echocardiographic parameters n (%)
Parameter Drug-induced colitis, n = 54 of 211 (25.6) Non-inflammatory controls, n = 34 of 211 (16.1) Inflammatory controls, n = 24 of 211 (11.4) Dilated right atrium 4 (7.4)a 1 4 (11.4) 5 (23.8) Dilated left ventricle 8 (14.8) 0 (0.0) 6 (26.1)b 3 Hypokinesia 10 (18.5) 5 (14.3) 3 (13.0) Right heart failure 5 (9.3) 4 (11.4) 2 (8.7) Diastolic dysfunction 22 (43.1) 16 (48.5) 7 (30.4) LV Functionb 2 ,b 3 Normal (> 50%) 39 (72.2) 29 (85.3) 17 (73.9) Slightly decreased (40%-50%) 4 (7.4) 5 (14.7) 1 (4.3) Moderately decreased (30%-40%) 5 (9.3) 0 (0.0) 2 (8.7) Severely decreased (< 30%) 6 (11.1) 0 (0.0) 3 (13.0)
Table 6 Binary logistic regression analysis
Parameter Drug-induced colitis vs inflammatory controls OR (95%CI) Drug-induced colitis vs non-inflammatory controls OR (95%CI) Heart failure 0.6 (0.3-1.1) 1.3 (0.6-2.8) Atherosclerosis 2.1 (1.2-3.7)b 1.7 (0.9-3.1) Dihydropyridines 1.3 (0.7-2.5) 1.0 (0.5-1.8) Diuretics 1.5 (0.8-2.6) 1.7 (1.0-3.0) Digitalis glycosides 1.1 (0.4-3.1) 3.7 (0.8-17.9) Low-dose ASS 1.7 (1.0-2.8) 1.1 (0.7-1.9) Platelet aggregation inhibitors 2.0 (0.7-5.7) 1.4 (0.6-3.3) NSAIDs 6.7 (3.0-15.1)b 2.2 (1.2-4.0)a Statins 1.1 (0.6-1.9) 0.9 (0.6-1.6) Fibrates 9.1 (1.1-74.3)a 8.9 (1.1-74.2)a