Penny-wise, ton-foolish? The recent movement to abolish inpatient alcohol and drug treatment

Adolescent brain development and the risk for alcohol and other drug problems

Dynamic changes in neurochemistry, fiber architecture, and tissue composition occur in the adolescent brain. The course of these maturational processes is being charted with greater specificity, owing to advances in neuroimaging and indicate grey matter volume reductions and protracted development of white matter in regions known to support complex cognition and behavior. Though fronto-subcortical circuitry development is notable during adolescence, asynchronous maturation of prefrontal and limbic systems may render youth more vulnerable to risky behaviors such as substance use. Indeed, binge-pattern alcohol consumption and comorbid marijuana use are common among adolescents, and are associated with neural consequences. This review summarizes the unique characteristics of adolescent brain development, particularly aspects that predispose individuals to reward seeking and risky choices during this phase of life, and discusses the influence of substance use on neuromaturation. Together, findings in this arena underscore the importance of refined research and programming efforts in adolescent health and interventional needs.

Alcoholism treatment episodes validly defined using mental health care utilization records

OBJECTIVE

We propose a method for defining and empirically validating episodes of alcoholism treatment from health care utilization records.

STUDY DESIGN AND SETTING

The study includes utilization records from 86,207 patients enrolled in a large managed behavioral care company who had at least one alcoholism encounter between 1991 and 1998. Treatment episodes are defined as a minimum number of alcoholism treatment encounters with the behavioral care company prior to a "clear zone" of no encounters. Statistical procedures to select a subset of episode definitions from a number of candidate definitions and methods for assessing the convergent and criterion validity of the definitions are presented.

RESULTS

The percentage of patients having at least one episode of alcoholism treatment varies from 43% to 77%, with the results being more sensitive to the minimum number of encounters required than the length of the clear zone. Criterion validity does not reveal any clear "winning" definitions; positive predictive ability increases most rapidly when going from 2 to 3 encounters required.

CONCLUSION

The most robust definitions of an alcoholism treatment episode entail 3 to 4 encounters with a clear zone of 3 to 4 months.

The effect of alcoholism treatment on medical care use

OBJECTIVE

The objective of this study was to assess changes in outpatient and inpatient medical care utilization associated with outpatient and inpatient treatment of alcohol abuse by comparing alcoholics who engaged in treatment to alcoholics who presented for, but did not engage in, treatment.

RESEARCH DESIGN

Claims and encounter data of 29,122 adults receiving benefits from both a behavioral managed care company and its parent medical care insurance company who had a diagnosis of alcoholism were analyzed. The nontreated alcoholics in this sample (n = 13,133) were used for comparison and to control for historical time trend in medical utilization across the study years 1993-1999. A longitudinal over-dispersed Poisson regression model was fit by the generalized estimating equation method to compare differences in medical utilization before and after outpatient and inpatient alcoholism treatment.

RESULTS

The pattern of medical utilization before and after alcoholism treatment appears basically symmetric. There is a gradual increase, which accelerates in the year before treatment and then falls off rapidly for the first year after treatment and then falls more gradually. Such a pattern does not suggest any net savings over time. The area under the curve before treatment is basically equivalent to that after treatment. Slopes of medical utilization for both treatment groups before 1 year before treatment were statistically similar to the control groups, but during 1 year before treatment, both treatment groups' outpatient utilization increased 1.25% and inpatient utilization increased 1.8% relative to the nontreated group. The slopes posttreatment showed differential effects over time of inpatient versus outpatient alcoholism treatment on inpatient and outpatient medical utilization.

CONCLUSIONS

Although a clear increase in medical utilization before treatment and a decrease in utilization after treatment was found, it is not clear if the change is linked to changes in the status of the individuals as they prepare to enter alcoholism treatment or if there is a real causal effect of the alcoholism treatment.