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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Clin Gastroenterol Hepatol. 2013 Jun 28;11(11):1478–1485. doi: 10.1016/j.cgh.2013.05.037

Table 2.

Comorbidities and Medications Use in Patients with Adequate and Inadequate Preparation Quality.

All Subjects (n=2163) Adequate Preparation Quality (n=1207) Inadequate Preparation Quality (n=956) p-value
Comorbidities
Coronary Artery Disease, n (%) 428 (20.3%) 209 (17.8%) 219 (23.5%) 0.0015
Congestive Heart Failure, n (%) 124 (5.9%) 58 (5.0%) 66 (7.1%) 0.0403
Diabetes, n (%) 638 (30.2%) 307 (26.0%) 331 (35.5%) <0.0001
Hypertension, n (%) 1403 (65.5%) 737 (61.7%) 666 (70.3%) <0.0001
Dementia, n (%) 27 (1.3%) 9 (0.8%) 18 (1.9%) 0.0198
Stroke, n (%) 100 (4.8%) 48 (4.1%) 52 (5.6%) 0.1217
Liver Cirrhosis, n (%) 53 (2.5%) 24 (2.1%) 29 (3.1%) 0.1247
Number of comorbidities, mean ± SD 1.0 ± 1.1 0.9 ± 1.1 1.2 ± 1.2 <0.0001
Charlson index, mean ± SD 1.3 ± 1.5 1.1 ± 1.4 1.5 ± 1.6 <0.0001
Pertinent Medications
Narcotics, n (%) 556 (25.7%) 285 (23.6%) 271 (28.3%) 0.0132
Calcium Channel Blockers, n (%) 339 (15.7%) 170 (14.1%) 169 (17.7%) 0.0237
Anticholinergics, n (%) 428 (19.8%) 224 (18.6%) 204 (21.3%) 0.1151
Iron Supplements, n (%) 121 (5.6%) 64 (5.3%) 57 (6.0%) 0.5112
Anticonvulsants, n (%) 69 (3.2%) 31 (2.6%) 38 (4.0%) 0.0839

SD, Standard Deviation