Evaluating community ED crowding: the Community ED Overcrowding Scale study.

OBJECTIVES: The goals of this study were to (1) identify valid variables that correlate with emergency department (ED) crowding and (2) determine a model that could be used to accurately reflect the degree of ED crowding. METHODS: A site sampling form was applied to convenience sampling of 13 community hospitals in California between April 6, 2011, and May 1, 2011. The outcome variable was average perception of crowding by the ED physician and charge nurse on a 100-mm visual analog scale. We focused on 20 candidate predictor variables that represented counts and times in the ED that were collected every 4 hours. A prediction model was developed using multivariable linear regression to determine the measures that predicted ED crowding. A parsimonious model was developed to allow for a clinical useful tool that that explained a significant amount of variability predicted by the full ED crowding model. RESULTS: A total of 2006 data sets were collected for each of the participating hospitals. A total of 1628 time entries for the hospitals were included in the study. Hospital EDs had censuses ranging from 18 000 to 98 000. Full evaluation was completed on 1489 data sets. Twenty variables were considered for the full model with 7 removed due to multicollinearity. The remaining 13 variables constituted the full model and explained 50.5% of the variability in the outcome variable. Five predictors were found to represent 92% of the variability represented by the full model. CONCLUSIONS: Five variables were highly correlated with community ED crowding and could be used to model the full set of all variables in explaining ED crowding.

Impact of the mental healthcare delivery system on california emergency departments.

INTRODUCTION: This is an observational study of emergency departments (ED) in California to identify factors related to the magnitude of ED utilization by patients with mental health needs. METHODS: In 2010, an online survey was administered to ED directors in California querying them about factors related to the evaluation, timeliness to appropriate psychiatric treatment, and disposition of patients presenting to EDs with psychiatric complaints. RESULTS: One hundred twenty-three ED directors from 42 of California's 58 counties responded to the survey. The mean number of hours it took for psychiatric evaluations to be completed in the ED, from the time referral was placed to completed evaluation, was 5.97 hours (95% confidence interval [CI], 4.82-7.13). The average wait time for adult patients with a primary psychiatric diagnosis in the ED, once the decision to admit was made until placement into an inpatient psychiatric bed or transfer to an appropriate level of care, was 10.05 hours (95% CI, 8.69-11.52). The average wait time for pediatric patients with a primary psychiatric diagnosis was 12.97 hours (95% CI, 11.16-14.77). The most common reason reported for extended ED stays for this patient population was lack of inpatient psychiatric beds. CONCLUSION: The extraordinary wait times for patients with mental illness in the ED, as well as the lack of resources available to EDs for effectively treating and appropriately placing these patients, indicate the existence of a mental health system in California that prevents patients in acute need of psychiatric treatment from getting it at the right time, in the right place.