Patient risk factors for medical injury: a case–control study.
Marbella AM, Laud PW, Brasel KJ, et al. Patient risk factors for medical injury: a case-control study. BMJ Qual Saf. 2011;20(2):187-93. doi:10.1136/bmjqs.2009.032664.
This study observed an increased risk for medical injuries in patients with higher severity of illness, higher risk of inpatient mortality, and multiple comorbidities. Procedure and medication-related injuries accounted for nearly all cases examined.

