Psychiatry and Psychology Commons^™

Combinations Of Dsm-Iv-Tr Criteria Sets For Bipolar Disorders., Daniel Z Lieberman, Roger Peele, Maryam Razavi

Psychiatry and Behavioral Sciences Faculty Publications

BACKGROUND: DSM-IV-TR is the standard for making psychiatric diagnoses in many countries. The diagnostic categorization of DSM-IV-TR is valued for its reliability, however it is well accepted that patients with the same diagnosis demonstrate substantial heterogeneity. In order to quantitatively characterize the degree of possible heterogeneity that can exist, combinatorial mathematics was used to calculate the number of possible ways to satisfy symptom criteria for the diagnosis of bipolar disorder as an example of this problem.

SAMPLING AND METHODS: The formula n!/(r!(n - r)!), which calculates the number of different ways of choosing an unordered number of items without repetition …

Environmental Risk Factors In Hospital Suicide., Daniel Z Lieberman, Harvey L P Resnik, Vicenzio Holder-Perkins

Psychiatry and Behavioral Sciences Faculty Publications

Suicide of hospitalized patients is the most common sentinel event reviewed by The Joint Commission on Accreditation of Healthcare Organizations. Shorter lengths of stay, sicker patients, and higher patient to staff ratios challenge the ability of the hospital to maintain safety. Risk factors associated with the physical environment of the inpatient psychiatric unit, cited as the most common root cause of inpatient suicide, may be neglected because evaluation of these factors is generally not included in medical education and training. Minimization of fixtures that can facilitate strangulation and other high risk aspects within the hospital environment is an important element …