Incarceration among adults who are in the public mental health system: rates, risk factors, and short-term outcomes.

OBJECTIVE: Incarceration of people with mental illness has become a major social, clinical, and economic concern, with an estimated 2.1 million incarcerations in 2007. Prior studies have primarily focused on mental illness rates among incarcerated persons. This study examined rates of and risk factors for incarceration and reincarceration, as well as short-term outcomes after incarceration, among patients in a large public mental health system. METHODS: The data set included 39,463 patient records combined with 4,544 matching incarceration records from the county jail system during fiscal year 2005-2006. Risk factors for incarceration and reincarceration were analyzed with logistic regression. Time after release from the index incarceration until receiving services was examined with survival analysis. RESULTS: During the year, 11.5% of patients (N=4,544) were incarcerated. Risk factors for incarceration included prior incarcerations; co-occurring substance-related diagnoses; homelessness; schizophrenia, bipolar, or other psychotic disorder diagnoses; male gender; no Medicaid insurance; and being African American. Patients older than 45, Medicaid beneficiaries, and those from Latino, Asian, and other non-Euro-American racial-ethnic groups were less likely to be incarcerated. Risk factors for reincarceration included co-occurring substance-related diagnoses; prior incarceration; diagnosed schizophrenia or bipolar disorder; homelessness; and incarceration for three or fewer days. Patients whose first service after release from incarceration was outpatient or case management were less likely to receive subsequent emergency services or to be reincarcerated within 90 days. CONCLUSIONS: Modifiable factors affecting incarceration risk include homelessness, substance abuse, lack of medical insurance, and timely receipt of outpatient or case management services after release from incarceration.

Predisposing, enabling, and need factors associated with high service use in a public mental health system.

The purpose of this study was twofold: (1) To investigate the individual- and system-level characteristics associated with high utilization of acute mental health services according to a widely-used theory of service use-Andersen's Behavioral Model of Health Service Use -in individuals enrolled in a large, public-funded mental health system; and (2) To document service utilization by high use consumers prior to a transformation of the service delivery system. We analyzed data from 10,128 individuals receiving care in a large public mental health system from fiscal years 2000-2004. Subjects with information in the database for the index year (fiscal year 2000-2001) and all of the following 3 years were included in this study. Using logistic regression, we identified predisposing, enabling, and need characteristics associated with being categorized as a single-year high use consumer (HU: >3 acute care episodes in a single year) or multiple-year HU (>3 acute care episodes in more than 1 year). Thirteen percent of the sample met the criteria for being a single-year HU and an additional 8% met the definition for multiple-year HU. Although some predisposing factors were significantly associated with an increased likelihood of being classified as a HU (younger age and female gender) relative to non-HUs, the characteristics with the strongest associations with the HU definition, when controlling for all other factors, were enabling and need factors. Homelessness was associated with 115% increase in the odds of ever being classified as a HU compared to those living independently or with family and others. Having insurance was associated with increased odds of being classified as a HU by about 19% relative to non-HUs. Attending four or more outpatient visits was an enabling factor that decreased the chances of being defined as a HU. Need factors, such as having a diagnosis of schizophrenia, bipolar disorder or other psychotic disorder or having a substance use disorder increased the likelihood of being categorized as a HU. Characteristics with the strongest association with heavy use of a public mental health system were enabling and need factors. Therefore, optimal use of public mental services may be achieved by developing and implementing interventions that address the issues of homelessness, insurance coverage, and substance use. This may be best achieved by the integration of mental health, intensive case management, and supportive housing, as well as other social services.

Association of posttraumatic stress disorder with increased prevalence of metabolic syndrome.

OBJECTIVE: Few studies have compared prevalence rates of metabolic abnormalities in antipsychotic-treated patients with different psychiatric disorders, including posttraumatic stress disorder (PTSD). In this study, we examined components of metabolic syndrome among middle-aged and older patients with psychiatric disorders. METHOD: In the study, 203 outpatients older than 40 years and with psychotic symptoms that needed antipsychotic treatment were enrolled. Among them, 65 had a diagnosis of schizophrenia, 56 had dementia, 49 had mood disorder, and 33 had PTSD. Clinical evaluations included medical history, use of psychotropic and other medications, adverse effects, physical examination, and clinical laboratory tests for metabolic profiles. RESULTS: Overall, the prevalence rates of metabolic syndrome were 72% in patients with PTSD, 60% in those with schizophrenia, 58% in those with mood disorder, and 56% in those with dementia. There were significant differences in body mass index, diastolic blood pressure, waist circumference, and high-density lipoprotein cholesterol among the 4 diagnostic groups. Posttraumatic stress disorder, schizophrenia, and mood disorder groups had significantly higher body mass indexes compared with the dementia group. The PTSD group also had significantly higher diastolic blood pressure compared with the dementia and mood disorder groups. CONCLUSIONS: Posttraumatic stress disorder may be associated with worsened metabolic profile. The overall frequency of metabolic syndrome and its components in patients with PTSD taking antipsychotics seemed to be at least equivalent, if not slightly worse, compared with that in patients with schizophrenia, dementia, or a mood disorder.

Physical and mental health-related quality of life among older people with schizophrenia.

OBJECTIVE: Since the time of Kraeplin, schizophrenia has been thought of as a disorder with progressive deterioration in functioning. An important aspect of functioning is both physical and mental health-related quality of life (HRQoL). The objective of this study was to examine the relationship of age to both mental and physical aspects of HRQoL in individuals with schizophrenia as compared to normal comparison subjects (NCs). METHODS: Middle-aged and older community-dwelling patients with schizophrenia (N=486) were compared to NCs (N=101). Health related quality of life was measured using the SF-36 Physical Health and Mental Health Component scores. The relationship between age and HRQoL was examined using linear regressions. In addition, we performed exploratory analyses to examine the effects of confounding variables on this relationship, and to examine the effects of age on SF-36 subscales. RESULTS: Patients with schizophrenia had lower SF-36 Physical and Mental Health Component scores than NCs, and these differences persisted after adjusting for the age difference between the two groups. The relationship between age and mental, but not physical, HRQoL was significantly different between the patients with schizophrenia and the NCs. Specifically, older age was associated with higher mental HRQoL among patients with schizophrenia, but not among the NCs. This difference remained significant after examining multiple potential confounding demographic and clinical variables. CONCLUSIONS: This study found that older age was associated with greater mental health quality of life. Longitudinal studies are warranted to confirm our finding, and to examine potential mechanisms responsible for possible improvement in mental HRQoL with age.

Psychotropic medication nonadherence among United States Latinos: a comprehensive literature review.

OBJECTIVE: Psychotropic medication nonadherence is a major public health problem, but few studies have focused on Latinos. The authors systematically reviewed the literature on rates of and factors influencing antipsychotic, antidepressant, and mood stabilizer nonadherence among U.S. Latinos. METHODS: MEDLINE and PsycINFO were searched by using the keywords adherence, compliance, Latino, Hispanic, psychotropic, and related terms; bibliographies from relevant reviews and studies were also searched. Twenty-one studies met inclusion criteria: published since 1980 in English or Spanish and measured psychotropic medication nonadherence rates among U.S. Latino adults. Information was extracted about study design and objective, location, population, medication type, participant demographic characteristics, adherence measures, adherence rates, and factors related to adherence. RESULTS: In the 17 studies that included Latinos and other minority groups, mean nonadherence rates were 41%, 31%, and 43%, respectively, among Latinos, Euro-Americans, and African Americans, with an overall effect size of .64 between Latinos and Euro-Americans. In the four studies that included only Latinos, the mean nonadherence rate was 44%. Ten of 16 studies found that Latinos had significantly lower adherence rates than Euro-Americans. Risk factors for nonadherence included being a monolingual Spanish speaker, lacking health insurance, experiencing access barriers to high-quality care, and having lower socioeconomic status. Protective factors included family support and psychotherapy. CONCLUSIONS: Rates of nonadherence to psychotropic medications were found to be higher for Latinos than for Euro-Americans. Further investigation is needed to understand the potentially modifiable individual and society-level mechanisms of this discrepancy. Clinical and research interventions to improve adherence should be culturally appropriate and incorporate identified factors.

Multimedia educational aids for improving consumer knowledge about illness management and treatment decisions: a review of randomized controlled trials.

Psychiatric practice is becoming increasingly more complex in terms of the available treatment options, use of new technologies for assessments, and a need for psychiatric patients and their caregivers to be familiar with general medical procedures. This trend will only intensify in the years to come. Routine methods of providing information relevant to clinical decision making about healthcare evaluations or management are often suboptimal. Relatively little research has been done on enhancing the capacity of psychiatric patients and the caregivers to make truly informed decisions about management. In this paper, we review studies that compared the effects of multimedia (video- or computer-based) educational aids with those of routine procedures to inform healthcare consumers about medical evaluations or management. Although most of these investigations were conducted in non-psychiatric patients, the results should be relevant for psychiatric practice of tomorrow. We searched MEDLINE, PsycINFO, and CINAHL bibliographic databases. Randomized controlled trials that used objective measures of knowledge or understanding of the information provided were selected. Studies were rated as positive if the multimedia educational aid resulted in a greater improvement in knowledge or understanding than the control condition. The quality of each study was also rated using a newly developed Scale for Assessing Scientific Quality of Investigations (SASQI). A total of 37 randomized controlled trials were identified. Nearly two-thirds of the studies (23/37) in diverse patient populations and for varied medical assessments and treatments reported that multimedia educational aids produced better understanding of information compared to routine methods. SASQI scores for the positive and negative studies were comparable, suggesting that lower quality was not related to positive findings. In conclusion, multimedia educational aids hold promise for improving the provision of complex medical information to patients and caregivers. It is likely that as psychiatric patients and their treating clinicians face increasingly complex choices regarding mental health treatment, multimedia decisional aids could become an effective supplement to the clinician patient interaction in near future.

Initiation and use of public mental health services by persons with severe mental illness and limited english proficiency.

OBJECTIVE: Few studies have examined the effect of limited English proficiency on use of mental health services by persons with mental illness from ethnic minority groups who are uninsured or publicly insured. This study examined how indigent or publicly insured Latino and Asian adults with limited English proficiency initially accessed the public mental health system and how their use of services changed over time compared with English-proficient peers. METHODS: Data from San Diego County for fiscal years 2000-2005 were used to examine point of first contact and use of inpatient, emergency, and outpatient services in the 18 subsequent months among 9,243 clients with a psychiatric diagnosis of schizophrenia, bipolar disorder, or major depression. Multivariate regression models were used to compute standardized estimates of utilization. RESULTS: Latino and Asian clients with limited English proficiency were significantly less likely to first access the system through emergency services and more likely to access the system through outpatient services (p<.001 for each comparison). In two outpatient programs that were focused on delivering services to clients with limited English proficiency, clients had a higher intensity of outpatient service use than clients in clinics that did not have such a focus (p<.05 for each). CONCLUSIONS: The initial pattern of service use was favorable for both groups. However, over time this pattern persisted for Asian clients with limited English proficiency but not for Latino clients with limited English proficiency. Findings suggest that ethnically focused programs may be an effective approach to engaging populations that are underrepresented in the mental health system.

A longitudinal study of the use of mental health services by persons with serious mental illness: do Spanish-speaking Latinos differ from English-speaking Latinos and Caucasians?

OBJECTIVE: Reports of mental health care use by Latinos compared to Caucasians have been mixed. To the authors' knowledge, no large-scale studies have examined the effects of language on mental health service use for Latinos who prefer Spanish compared to Latinos who prefer English and to Caucasians. Language is the most frequently used proxy measure of acculturation. The authors used the administrative database of a mental health system to conduct a longitudinal examination of mental health service use among Spanish-speaking versus English-speaking Latinos and Caucasians with serious mental illness. METHOD: There were 539 Spanish-speaking Latinos, 1,144 English-speaking Latinos, and 4,638 Caucasians initiating treatment for schizophrenia, bipolar disorder, or major depression during 2001-2004. Using multivariate regressions, the authors examined the differences among the groups in the type of service first used. The authors also examined the probability of use of each of four types of mental health services and the intensity of outpatient treatment. RESULTS: Spanish-speaking Latinos differed from both English-speaking Latinos and Caucasians on most measures. Compared to patients in the other groups, the Spanish-speaking Latinos were less likely to enter care through emergency or jail services and more likely to enter care through outpatient services. There were no group differences in the proportion that stayed in treatment or used inpatient hospitalization. CONCLUSIONS: This study suggests that for Latinos, preferred language may be more important than ethnicity in mental health service use. Future studies comparing mental health use may need to differentiate between Spanish- and English-speaking Latinos.

Antipsychotic polypharmacy trends among Medicaid beneficiaries with schizophrenia in San Diego County, 1999-2004.

OBJECTIVE: This study examined trends and costs of second-generation antipsychotic polypharmacy among Medicaid beneficiaries with schizophrenia in San Diego County. METHODS: Medicaid data were used to identify 15,962 persons with schizophrenia receiving antipsychotic medications between 1999 and 2004. The yearly proportion of beneficiaries receiving second-generation antipsychotic polypharmacy, duration of polypharmacy, inpatient admissions, and pharmaceutical costs were examined. RESULTS: The proportion of clients receiving second-generation antipsychotic polypharmacy increased from 3.3% in 1999 to 13.7% in 2004, whereas annual antipsychotic medication costs increased from $4,128 to $5,231 (2004 dollars). Among those receiving second-generation polypharmacy, the percentage receiving second-generation polypharmacy for 12 months increased from 5.1% to 14.4%, and the percentage hospitalized increased from 7.2% to 9.0%. CONCLUSIONS: The prevalence of long-term second-generation antipsychotic polypharmacy and its associated costs increased substantially between 1999 and 2004. Prescribing antipsychotic polypharmacy is an unproven and costly strategy that if left unchanged could lead to administrative efforts to cut costs and dictate practice.

Building blocks of successful aging: a focus group study of older adults' perceived contributors to successful aging.

OBJECTIVE: The purpose of this study was to solicit the opinions of older adults about factors related to successful aging using focus group methods. METHODS: Twelve focus groups were conducted with an average of six individuals per group. Participants included 72 community-dwelling older adults (age range: 60-99 years) recruited primarily from retirement communities in San Diego County, California. Interview transcripts were analyzed using a grounded theory framework of "Coding Consensus, Co-occurrence, and Comparison." RESULTS: A total of 33 factors were identified, out of which four major themes emerged: attitude/adaptation, security/stability, health/wellness, and engagement/stimulation. Every focus group emphasized the need for a positive attitude, realistic perspective, and the ability to adapt to change. Security and stability encapsulated one's living environment, social support, and financial resources. General physical health and wellness were frequently mentioned, with mixed opinions on their necessity for successful aging. Finally, a sense of engagement, reflected in pursuit of continued stimulation, learning, feeling a sense of purpose in life, and being useful to others and to society, was considered a prominent aspect of successful aging. All four themes appeared to be interrelated such that engagement required a foundation of security and stability while positive attitude and adaptation strategies often compensated for impaired physical health. CONCLUSION: Older adults place greater emphasis on psychosocial factors as being key to successful aging, with less emphasis on factors such as longevity, genetics, absence of disease/disability, function, and independence.

Diagnostic variability for schizophrenia and major depression in a large public mental health care system dataset.

Administrative datasets can provide information about mental health treatment in real world settings; however, an important limitation in using these datasets is the uncertainty regarding psychiatric diagnosis. To better understand the psychiatric diagnoses, we investigated the diagnostic variability of schizophrenia and major depression in a large public mental health system. Using schizophrenia and major depression as the two comparison diagnoses, we compared the variability of diagnoses assigned to patients with one recorded diagnosis of schizophrenia or major depression. In addition, for both of these diagnoses, the diagnostic variability was compared across seven types of treatment settings. Statistical analyses were conducted using t tests for continuous data and chi-square tests for categorical data. We found that schizophrenia had greater diagnostic variability than major depression (31% vs. 43%). For both schizophrenia and major depression, variability was significantly higher in jail and the emergency psychiatric unit than in inpatient or outpatient settings. These findings demonstrate that the variability of psychiatric diagnoses recorded in the administrative dataset of a large public mental health system varies by diagnosis and by treatment setting. Further research is needed to clarify the relationship between psychiatric diagnosis, diagnostic variability and treatment setting.

Schizophrenia in late life: emerging issues.

Schizophrenia in late life is emerging as a major public health concern worldwide. We discuss several areas of research and clinical care that are particularly pertinent to older persons with schizophrenia, including the public health challenge and the cost of care. We then discuss clinical issues relevant to late-life schizophrenia (course of illness and cognition), medical care and comorbidity in older psychiatric patients (general and illness-related), and treatment concerns related to the use of atypical antipsychotics in older persons with psychosis (efficacy and side effects). Clinical care for this ever-increasing segment of our population requires special consideration of the unique characteristics of older persons with schizophrenia.

Use of Primary Care and by Middle Aged and Older Persons with Schizophrenia.

INTRODUCTION: Comorbid medical conditions and receipt of primary medical care are important aspects of healthcare for older persons with schizophrenia. This study describes the prevalence of comorbid medical conditions and the factors associated with the use of primary care treatment in a group of middle-aged and older persons with schizophrenia. METHODS: Using baseline data from an ongoing study of functional skills training (N= 236), we determined the self-reported prevalence of 8 common medical conditions. In addition, patients who did (n= 146) versus those who did not (n= 90) receive primary care treatment were compared on demographic characteristics, psychiatric symptoms, and comorbid medical conditions using both univariate and multivariate analyses. RESULTS: The most common medical conditions were hypertension (31%), arthritis (25%), and diabetes (14%) and almost 60% of the patients had one or more medical conditions. More than 60% of the patients had received primary care treatment during the prior 3 months. Patients who used primary care were older, more likely to have received mental health treatment, and more likely to have a medical condition, especially, diabetes. There were no differences between the groups, however, in the severity of psychopathologic symptoms or cognitive deficits. Multivariate logistic regression analysis found that older age and diabetes were associated with greater utilization of primary care treatment. DISCUSSION: In middle-aged and older patients with schizophrenia, comorbid medical conditions were common and a majority of the patients did receive primary care treatment in the prior 3 months. Older patients and those with comorbid medical conditions were more likely to receive primary care, but there was no relationship between severity of psychiatric symptoms and receipt of primary care. Additional research is needed to determine sociodemographic and clinical factors associated with use of primary care utilization in groups of participants with a broader range of psychiatric symptom severity and supportive environments.

Differences in clinical features and mental health service use in bipolar disorder across the lifespan.

OBJECTIVE: Because of the scarcity of research in geriatric bipolar disorder, the authors examined the prevalence, clinical features, and service use of persons with bipolar disorder among older adults treated in a large public mental health system. METHODS: From San Diego County's Adult and Older-Adult Mental Health Services database (N=34,970, fiscal year 2002-2003), the authors selected patients with bipolar disorder, divided them into three age-groups (young: age 18-39, middle-aged: age 40-59, and elderly: age 60+) and compared them on demographic, clinical, and mental health service use characteristics. RESULTS: The authors identified 2,903 patients who received services for bipolar disorder at least once during the fiscal year, accounting for a slightly lower proportion of diagnosis among elderly patients (7.0%) than middle-aged (8.7%) or younger groups (8.3%). Elderly patients were less likely to have substance use disorder comorbidity, but more likely to have a cognitive disorder diagnosis and lower global functioning scores than their younger counterparts. Elderly bipolar patients were less likely than younger groups to use inpatient, outpatient, and emergency room psychiatric care, but more likely to use case-management and conservator services. DISCUSSION: Bipolar disorder was only slightly less common among elderly patients in a large, public mental health system, compared to younger age-groups. Available clinical data revealed a mixed picture of bipolar disorder in late life, with more functional and cognitive impairment and less substance use disorder comorbidity and use of acute psychiatric services. Our findings suggest that older adults with bipolar disorder have unique mental health service needs.

Prevalence and risk factors for homelessness and utilization of mental health services among 10,340 patients with serious mental illness in a large public mental health system.

OBJECTIVE: The authors examined the prevalence of and risk factors for homelessness among all patients treated for serious mental illnesses in a large public mental health system in a 1-year period. The use of public mental health services among homeless persons was also examined. METHOD: The study included 10,340 persons treated for schizophrenia, bipolar disorder, or major depression in the San Diego County Adult Mental Health Services over a 1-year period (1999-2000). Analytic methods that adjusted for potentially confounding variables were used. Multivariate logistic regression analyses were used to calculate odds ratios for the factors associated with homelessness, including age, gender, ethnicity, substance use disorder, Medicaid insurance, psychiatric diagnosis, and level of functioning. Similarly, odds ratios were computed for utilization of mental health services by homeless versus not-homeless patients. RESULTS: The prevalence of homelessness was 15%. Homelessness was associated with male gender, African American ethnicity, presence of a substance use disorder, lack of Medicaid, a diagnosis of schizophrenia or bipolar disorder, and poorer functioning. Latinos and Asian Americans were less likely to be homeless. Homeless patients used more inpatient and emergency-type services and fewer outpatient-type services. CONCLUSIONS: Homelessness is a serious problem among patients with severe mental illness. Interventions focusing on potentially modifiable factors such as substance use disorders and a lack of Medicaid need to be studied in this population.

Adherence to treatment with antipsychotic medication and health care costs among Medicaid beneficiaries with schizophrenia.

OBJECTIVE: The authors' goal was to evaluate the relationship between adherence to treatment with antipsychotic medication and health expenditures. A secondary objective was to identify risk factors predictive of nonadherence. METHOD: Data included Medicaid eligibility and claims data from 1998 to 2000 for San Diego County, Calif. Pharmacy records were used to assess adherence to treatment with antipsychotic medication according to the cumulative possession ratio (the number of days medications were available for consumption divided by the number of days subjects were eligible for Medi-Cal). Regression models were used to examine risk factors, hospitalizations, and costs associated with nonadherence, partial adherence, adherence, and excess fills of antipsychotic medication. RESULTS: Forty-one percent of Medicaid beneficiaries with schizophrenia were found to be adherent to treatment with their antipsychotic medications: 24% were nonadherent, 16% were partially adherent, and 19% were excess fillers. Rates of psychiatric hospitalization were lower for those who were adherent (14%) than for those who were nonadherent (35%), partially adherent (24%), or had excess fills (25%). Rates of medical hospitalization were lower for those who were adherent (7%) than for those who were nonadherent (13%) or had excess fills (12%). Those who were adherent had significantly lower hospital costs than the other groups; pharmacy costs were higher among those who were adherent than among those who were nonadherent or partially adherent and were highest for excess fillers. Total costs for excess fillers (14,044 US dollars) were substantially higher than total costs for any other group. CONCLUSIONS: Despite the widespread use of atypical antipsychotic medications, alarmingly high rates of both underuse and excessive filling of antipsychotic prescriptions were found in Medicaid beneficiaries with schizophrenia. The high rates of antipsychotic nonadherence and associated negative consequences suggest interventions on multiple levels.

Assisted living and use of health services among medicaid beneficiaries with schizophrenia.

BACKGROUND: Considerable attention has been given to the appropriateness of mental and medical health care provided to residents of certain assisted living facilities specialized for the severely mentally ill. However, there exists little objective evidence regarding the level of services provided by these facilities in general. AIMS OF THE STUDY: To compare the use of mental and medical health services among persons with schizophrenia who were residing in assisted living facilities compared to those received by patients living independently and those who were homeless. METHODS: Medicaid claims were combined with person level data on living situation and psychological and social functioning for 1998-2000. Regression models were used to analyze whether living in a board-and-care facility was related to use of outpatient mental health services including case management, therapy, crisis stabilization, medication supervision, day treatment, and drug treatment, the probability of acute psychiatric hospitalization, the probability of hospitalization for physical health, and costs. RESULTS: Residents of board-and-care facilities had greater use of outpatient mental health services and lower rates of psychiatric and medical hospitalization. Pharmacy costs and total health care costs were highest in assisted living. DISCUSSION: Our data was observational, and selection processes related to illness severity likely affect living arrangement. Our analysis suggests that assisted living was related to greater use of outpatient mental health services and lower rates of hospitalization. IMPLICATIONS FOR HEALTH POLICIES: Assisted living facilities may provide a suitable environment though which to provide outpatient mental health services. Policy makers interested in reducing homelessness through interventions might consider subsidizing these facilities. IMPLICATIONS FOR FURTHER RESEARCH: Research studies should be designed to evaluate characteristics of assisted living facilities that lead to improved function and outcomes among residents.

Gender differences in characteristics and service use of public mental health patients with schizophrenia.

The study examined gender differences in sociodemographic, clinical, and mental health service use variables among patients with schizophrenia in a public mental health care system. Data from 1999 to 2000 for 4975 adult patients were analyzed. Women were older and more likely to be married and to have Medicaid insurance and less likely to have a diagnosis of substance abuse than men. More women were living independently, whereas more men resided in assisted living facilities or were homeless. Women were significantly more likely to have had a psychiatric hospitalization than men, which may be related to differential use of services by men and women with the worst level of functioning.

Patterns of public mental health service use by age in patients with schizophrenia.

OBJECTIVE: Authors examined the relationship between age and use of public mental health services by adults with schizophrenia in a large mental health care system. METHODS: The study sample included 4,975 patients treated for schizophrenia in San Diego County's Adult Mental Health Services (AMHS) during fiscal year 1999-2000. They compared three age-groups: 18-44 years (young adults), 45-64 (middle-aged), and 65-or-older (elderly) on 1) the number of individuals treated for schizophrenia per 10,000 people in the county, and 2) the use of six different types of public mental health services, including hospitalization, emergency psychiatric unit, crisis house, outpatient clinic, day treatment, and case management. RESULTS: Elderly patients with schizophrenia were underrepresented among AMHS users with a diagnosis of schizophrenia. The use of hospitalization, emergency room, crisis house, and day treatment was highest among young-adult patients and decreased with age. Outpatient treatment use was similar for young-adult and middle-aged patients and lower for elderly patients. The only type of service use that seemed to increase with age was case management. Even after controlling for gender, ethnicity, living situation, substance use disorder, and insurance status, most of the above-mentioned age-related differences in service use persisted. CONCLUSION: Among patients with schizophrenia in a public mental health system, old age was associated with significantly lower use of all mental health services except case management. Research is needed to explore reasons for this differential use of services across age-groups.