Making connections: Severe mental illness and closeness with other people

Much has been written about social lives of people with severe mental illness (SMI). Before social lives can flourish, however, people with SMI must first get close to other people. We studied this closeness by holding three hour-long focus groups at Fountain House, a community mental health agency in New York City. We found that closeness between two people with SMI is challenging because someone with depression, for example, may have trouble understanding someone with a different disorder (e.g., schizophrenia). Romantically, closeness is also challenging—SMI is hard to explain to partners. In the workplace, closeness is difficult because SMI can alienate co-workers. It could push them away. In mental health programs, we found that closeness has more of a chance to develop (1) during evening and weekend activities; (2) when activities are planned often enough to prevent isolation; and (3) when staff reach out to people before extended absence causes distance.     

Estimating Benchmark Concentrations and Other Noncancer Endpoints in Epidemiology Studies

Methods for evaluating the hazards associated with noncancer responses with epidemiologic data are considered. The methods for noncancer risk assessment have largely been developed for experimental data, and are not always suitable for the more complex structure of epidemiologic data. In epidemiology, the measurement of the response and the exposure is often either continuous or dichotomous. For a continuous noncancer response modeled with multiple regression, a variety of endpoints may be examined: (1) the concentration associated with absolute or relative decrements in response; (2) a threshold concentration associated with no change in response; and (3) the concentration associated with a particular added risk of impairment. For a dichotomous noncancer response modeled with logistic regression, concentrations associated with specified added/extra risk or with a threshold responses may be estimated. No-observed-effect concentrations may also be estimated for categorizations of exposures for both continuous and dichotomous responses but these may depend on the arbitrary categories chosen. Respiratory function in miners exposed to coal dust is used to illustrate these methods.