OBJECTIVE: To comprehensively analyze potential risk factors for falling in the hospital and describe the circumstances surrounding falls.DESIGN: Case-control study. Data on potential risk factors and circumstances of the falls were collected via interviews with patients and/ or nurses and review of adverse event reports, medical records, and nurse staffing records.SETTING: Large urban academic hospital.PATIENTS: Ninety-eight inpatients who fell and 318 controls matched on approximate length of stay until the index fall.
MEASUREMENTS AND MAIN RESULTS:In a multivariate model of patient-related, medication, and care-related variables, factors that were significantly associated with an increased risk of falling included: gait/balance deficit or lower extremity problem (adjusted odds ratio [aOR], 9.0; 95% confidence interval [CI], 2.0 to 41.0), confusion (aOR, 3.6; 95% CI, 1.6 to 8.4), use of sedatives/hypnotics (aOR, 4.3; 95% CI, 1.6 to 11.5), use of diabetes medications (aOR, 3.2; 95% CI, 1.3 to 7.9), increasing patient-to-nurse ratio (aOR, 1.6; 95% CI, 1.2 to 2.0), and activity level of ''up with assistance'' compared with ''bathroom privileges'' (aOR, 8.7; 95% CI, 2.3 to 32.7). Urinary or stool frequency or incontinence was of borderline significance (aOR, 2.3; 95% CI, 0.99 to 5.6). Having one or more side rails raised was associated with a decreased risk of falling (aOR, 0.006; 95% CI, 0.001 to 0.024).CONCLUSIONS: Patient health status, especially abnormal gait or lower extremity problems, medications, as well as care-related factors, increase the risk of falling. Fall prevention programs should target patients with these risk factors and consider using frequently scheduled mobilization and toileting, and minimizing use of medications related to falling. Due to the risk of significant injury and the increased cost, reduction of falls in hospitals is a major priority for hospital quality and patient safety. While falls have been relatively well studied in community and nursing home settings, less is known about the prevention of hospital falls. Previous research has identified risk factors for falling in the hospital, including impaired balance or gait, history of falling, increasing age, impaired cognition, depression, dizziness or vertigo, orthostatic hypotension, visual impairment, urinary frequency, nocturia, incontinence, specific diagnoses, and use of certain medications, such as benzodiazepines, antipsychotics, and sedatives. 10,[12][13][14][15][16][17][18] Yet comparative studies on hospital falls have been limited in several ways, including variations in study design, setting, patient population, and definitions of risk factors. Some studies have continued to focus solely on the elderly or relied only on data included in hospital incident reports or chart review. Furthermore, environmental and care-related factors, including patient-to-nurse ratio, are often overlooked as potential risk factors for falling in these studies. Because fall prevention programs should be linked to the etiologic factors of fa...