Table 1. Odds of experiencing an adverse drug reaction by ward type*.
Medical/Surgical Specialty† | Odds ratio (95%CI) in relation to breast/general surgical ward‡ (n = 555) | Number of patient episodes |
Respiratory | 3.65 (2.37 to 5.61) | 298 |
Cardiology | 3.34 (2.13 to 5.25) | 256 |
Endocrine | 3.19 (2.02 to 5.06) | 242 |
Elderly medicine | 3.06 (2.07 to 4.55) | 544 |
Orthopaedic surgery | 2.65 (1.81 to 3.90) | 711 |
Rheumatology | 2.55 (1.27 to 5.13) | 76 |
Gastrointestinal/ Liver | 2.43 (1.58 to 3.73) | 390 |
Pharmacology | 1.53 (0.95 to 2.47) | 356 |
Infectious diseases | 1.28 (0.75 to 2.20) | 267 |
Method used: General Estimating Equation (GEE) model with compound symmetry.
One ward per specialty was assessed, with the exception of elderly medicine and orthopaedic surgery where two wards were assessed.
Odds Ratios adjusted for multilevel structure.