The effect of age and smoking on the hippocampus and memory in late middle age.

From middle age the hippocampus atrophies at an accelerating rate. Factors that further this acceleration may hasten memory decline and the onset of memory disorder. We studied associations between smoking history, age, ApoE e4 genotype, vascular risk factors, hippocampal volume, and cognition in 67 middle-aged subjects (mean age = 56 years) who were offspring of parents with dementia. Subjects underwent isotropic T1-weighted 3 T MRI brain scanning with FreeSurfer volumetric data extraction for the hippocampus, a neuropsychological assessment battery, extensive medical data collection, and ApoE genotyping. ApoE e4, vascular risk variables, and alcohol history were unrelated to hippocampal volume. Hippocampal volume correlated negatively with age and positively with memory performance, but not with global cognition. Aging diminished hippocampal volume by 0.52% per year. Female subjects (only two males smoked) with a heavy smoking history (≥ 9.5 pack-years; n = 11) exhibited hippocampal volumes that were 7.4% smaller than the volumes of females (n = 37) with a light or no smoking history. In our sample by late middle age, a history of moderate to heavy smoking is associated with hippocampal atrophy equivalent to 12 years of aging. Since only a small number of subjects within the sample have a smoking history, validation of this finding in larger samples is desirable.

Hyperinsulinemia and elevated systolic blood pressure independently predict white matter hyperintensities with associated cognitive decrement in the middle-aged offspring of dementia patients.

Cerebrovascular disease is an independent risk factor for dementia that may also be synergistic with Alzheimer's disease. In recent years attention has switched from cerebral infarcts to microvascular disease as the primary cause of cerebrovascular cognitive decline, with damage to the white matter the primary mechanism. Uncertainties remain regarding the risks posed by different types vascular threat, the extent to which cerebrovascular damage occurs in middle age, and whether relatively "normal" amounts of white matter damage are accompanied by meaningful degrees of cognitive decline. We explored these issues via laboratory, cardiovascular, cognitive, and magnetic resonance imaging (MRI) data in 67 middle-aged cognitively normal offspring of dementia patients. The sample was enriched for vascular risk. Plasma insulin, 24-h systolic blood pressure, body mass index, age, and % small dense LDL cholesterol were the strongest correlates of MRI white matter hyperintensity (WMH) volume. With shared variance controlled for, 24 h systolic BP, plasma insulin, and age remained as significant predictors of WMH volume. An interaction variable (24 h BP * insulin) did not improve the prediction of WMH. WMH volume correlated negatively with cognition. No evidence for an ApoE ε4 effect emerged for either WMH or cognition. Hypertension and hyperinsulinemia appear to pose independent, consequential threats to the cerebral small vessel vasculature in middle age, reflected in the presence of areas of WMH on MRI scans. Our data show that even modest WMH volumes in middle age are associated with cognitive decrement, underscoring the importance of aggressive treatment and lifestyle modifications to address vascular risk throughout adulthood.

Geriatric anxiety inventory: factor structure and associations with cognitive status.

OBJECTIVES: The factor structure and clinical correlates of the Geriatric Anxiety Inventory were determined within a sample of patients with cognitive impairment. METHODS: Using a cross-sectional design, data were collected within an outpatient Memory Disorders Center. Clinical participants were diagnosed with either mild dementia (N = 45) or cognitive impairment, no dementia (N = 55). A comparison group of participants without subjective memory complaints (N = 50) was also included. The Geriatric Anxiety Inventory was administered and scored as both the 20-item version and 5-item short form. Measures of cognitive status, depressive symptoms, and functioning were also completed. RESULTS: Clinical participants reported more severe anxiety than did participants in the comparison group; however, the two patient groups did not differ. Principal components analysis revealed a four-factor structure of the Geriatric Anxiety Inventory. Item endorsement on factors characterized by excessive worry and difficulty making decisions were associated with a nearly twofold (odds ratio [OR]: 1.86) and nearly sixfold (OR: 5.70) odds of having cognitive impairment, respectively. The short-form version was composed of a single factor, and item endorsement was associated with a twofold increased odds of having cognitive impairment (OR: 2.02). CONCLUSION: Psychometric properties of the Geriatric Anxiety Inventory are acceptable among patients with cognitive impairment. Anxiety symptoms were common, and symptoms characterized by excessive worry and difficulty making decisions demonstrated the strongest associations with cognitive status.

A Cross-National Analysis of the Psychometric Properties of the Geriatric Anxiety Inventory.

OBJECTIVES: Assessing late-life anxiety using an instrument with sound psychometric properties including cross-cultural invariance is essential for cross-national aging research and clinical assessment. To date, no cross-national research studies have examined the psychometric properties of the frequently used Geriatric Anxiety Inventory (GAI) in depth. METHOD: Using data from 3,731 older adults from 10 national samples (Australia, Brazil, Canada, The Netherlands, Norway, Portugal, Spain, Singapore, Thailand, and United States), this study used bifactor modeling to analyze the dimensionality of the GAI. We evaluated the "fitness" of individual items based on the explained common variance for each item across all nations. In addition, a multigroup confirmatory factor analysis was applied, testing for measurement invariance across the samples. RESULTS: Across samples, the presence of a strong G factor provides support that a general factor is of primary importance, rather than subfactors. That is, the data support a primarily unidimensional representation of the GAI, still acknowledging the presence of multidimensional factors. A GAI score in one of the countries would be directly comparable to a GAI score in any of the other countries tested, perhaps with the exception of Singapore. DISCUSSION: Although several items demonstrated relatively weak common variance with the general factor, the unidimensional structure remained strong even with these items retained. Thus, it is recommended that the GAI be administered using all items.

Case-finding for depression in elderly people: balancing ease of administration with validity in varied treatment settings.

BACKGROUND: Little is known about the performance of brief and ultrabrief (1- and 2-question) depression screens in older patients across varied treatment sites. This study (1) assesses their validity in clinics, hospitals, and nursing homes and (2) assesses cut-points for optimal clinical application. METHODS: 360 patients aged 60 years and older from 2 urban primary care practices (n = 125), 1 general hospital (n = 150), and 8 nursing homes (n = 85) were assessed using the Yale 1-question screen, the 2-question instrument derived from the Primary Care Evaluation of Mental Disorders, and long and short versions of the Center for Epidemiologic Studies Depression (CES-D) scale and Geriatric Depression Scale (GDS). Sensitivity and specificity were calculated for each screen compared with the criterion standard Diagnostic Interview Schedule (DIS) depression diagnosis and receiver operating characteristic curves generated. RESULTS: 9% of patients met DIS criteria for major depression and 7% for subsyndromal depression. Overall, the 10-item CES-D showed the best sensitivity/specificity for major depression in clinics (79%/81%) and hospitals (92%/77%), and the short GDS in nursing homes (86%/82%). Specificity of 1- and 2-question instruments was generally low. Established cut-points generally worked best for the short screens, while modifications were useful for longer versions. CONCLUSIONS: Consideration of site of use is important in selecting brief case-finding instruments for late-life depression, with the 10-item CES-D working best in medical settings and the 15-item GDS in nursing homes.

Screening for depression in middle-aged and older puerto rican primary care patients.

BACKGROUND: Brief depression screens have recently been developed, but their use in older or minority populations has not been studied. To date, optimal depression screens and optimal cutpoints have not been identified for middle-aged and older Hispanic primary care patients. METHODS: This study compares multiple versions of four depression screening tools--Center for Epidemiologic Studies-Depression Scale (CES-D), Geriatric Depression Scale, Yale 1-question screen, and PRIME-MD 2-question screen--to the Composite International Diagnostic Interview (CIDI), the World Health Organization's diagnostic interview, which has been validated in adult Latino populations, to assess convergent validity. Three hundred and three Puerto Rican primary care patients age 50 and older completed all screens and the CIDI in a face-to-face interview. Sensitivity and specificity for each screen were calculated, and receiver operator characteristic curves were generated. RESULTS: Between 34% and 61% of patients screened positive for depression, depending on the measure, with 12% meeting DSM-IV criteria for major depression (CIDI). The 10-item CES-D worked best to identify major depression in this population, with a sensitivity of 84% and specificity of 64% using a cutpoint of 3. CONCLUSIONS: The 10-item CES-D, which takes about 2 minutes to administer, is a useful tool for identifying Puerto Rican patients in need of an in-depth mental health evaluation in a primary care setting. A lower cutpoint of 3 (instead of the conventional cutpoint of 4) is recommended for optimal sensitivity and specificity.

Late-life anxiety disorders among Puerto Rican primary care patients: impact on well-being, functioning, and service utilization.

With the growing population of older Hispanic adults there is a need for additional research on the mental health care of this patient group. This study explored the impact of anxiety disorders on the health status of 291 older (>/=50 years) Puerto Rican primary care patients (n = 65 with anxiety disorders, n = 226 without anxiety disorders). All analyses controlled for potential confounding variables, including depression diagnosis and physical health burden. Logistic regression indicated that anxiety disorders were associated with higher psychological distress, suicidality, and emergency room service utilization, as well as lower instrumental functioning and perceived health quality. Analysis of covariance indicated that both anxiety disorder status and history of ataque de nervios were related to higher percentages of lifetime somatic symptoms. These data highlight the need for improved recognition and treatment of anxiety disorders in older Puerto Rican adults.

Metabolic abnormalities in adult and geriatric major depression with and without comorbid dementia.

Metabolic abnormalities and metabolic syndrome (MetS) increasingly have been linked to depression. The authors studied examined inpatients 35 years and older with major depressive disorder (MDD) to determine the prevalence of component metabolic abnormalities and the full MetS with age, treatment, and comorbid dementia. Data analysis involved retrospective cross-sectional review from a nonprofit psychiatry inpatient service of all discharges 35 years and older with a diagnosis of MDD during a 3 year period (April 1, 2003 to March 31, 2006) (N=1718). Metabolic measures included waist circumference, lipid measurements, glucose, and hypertension diagnosis. Abnormal metabolic measures and MetS were highly prevalent in both young and old patients with MDD: one or more component was present in 87.6% of older (65-99 years old) and 79.9% of younger patients. Full MetS was present in 31.5% of older and 28.9% of younger patients (not significant, P=0.85). Metabolic abnormalities were not associated with atypical antipsychotics after controlling other variables. One-quarter (n=79, 24.9%) of older inpatients had a dementia co-diagnosis. Older patients with MDD and dementia had greater risk of elevated glucose while younger patients were more often hypertensive. Longitudinal studies are needed to determine the relationships of MDD with or without dementia with these highly prevalent abnormal metabolic measures and MetS.

Public's view of mental health services for the elderly: responses to Dear Abby.

The need for adequate mental health services for older adults is an increasingly urgent issue as the life expectancy of Americans continues to extend; yet there are unresolved questions regarding the public's perception of service needs. The Group for the Advancement of Psychiatry collaborated with advice columnist Jeannie Phillips of "Dear Abby" to invite public feedback on mental health services for the elderly. Feedback was invited on access to services as well as perceived need for improvement in the quality or quantity of those services. The effort resulted in 800 responses that identified three primary issues: problems in accessing care, inadequate detection of mental health conditions by general practitioners, and a need for more psychotherapy services. It is hoped that this Open Forum will stimulate discussion throughout the country for the benefit of older persons with mental health needs as the country grapples with changes to come after the passage of health care reform.

Anxiety disorders in older Puerto Rican primary care patients.

OBJECTIVE: Authors examined the frequency and comorbidity of anxiety disorders among aging Puerto Ricans seen in primary care. METHODS: A group of 303 middle-aged and older low-socioeconomic-status Puerto Ricans attending primary-care clinics were surveyed, using a Spanish-language diagnostic interview. RESULTS: Twenty-four percent of participants met probable DSM criteria for at least one anxiety disorder in the previous year, especially generalized anxiety disorder, specific phobia, and panic attacks. Psychiatric comorbidity was common; the occurrence of most anxiety disorders increased the conditional risk of a comorbid disorder from 5- to 30-fold. CONCLUSIONS: The present results suggest a need to screen at-risk patients in primary care settings serving this population.

What matters to older African Americans facing end-of-life decisions? A focus group study.

BACKGROUND: To better understand what matters to African American elders who are faced with issues of death, dying, and end-of-life care, a qualitative study was conducted to elicit their perspective. METHODS: Focus groups were convened across the state of Connecticut. A total of 196 individuals participated in the 90-minute interview sessions. Using an interview guide, a trained moderator conducted the racially homogeneous discussion groups. Transcriptions of the group narratives with 22 older African Americans were coded to identify themes. Data were organized and analyzed using NUD-IST 4 and constant comparative method of qualitative data analysis. RESULTS: Five major themes emerged from the focus group data on older African Americans: (1) spirituality, (2) burden on family, (3) trust, (4) health insurance coverage, and (5) cultural concerns. CONCLUSION: Recommendations are made for outreach education, involvement of informal helpers, and a level of acceptability in practice for diverse care needs.

Determinants of geropsychiatric inpatient length of stay.

Despite efforts to decrease lengths of acute psychiatric hospital stays, some geriatric inpatients continue to have extended stays. This research examined factors related to length of stay (LOS), including legal and administrative factors not traditionally included in prior studies. The charts of 384 patients, representing all 464 discharges from an inpatient geropsychiatric unit over a one-year period, were evaluated retrospectively and analyzed using logistic regression and logarithmic transformation. The LOS of over 12% of the inpatients was 26 days or more (average LOS 14.1). Factors significantly associated with longer LOS were: receiving electroconvulsive therapy (ECT), higher Brief Psychiatric Rating Scale (BPRS) positive symptoms scores, falling, pharmacology complications, multiple prior psychiatric hospitalizations, requiring court proceedings to continue hospitalization or medicate against will, consultation delays and not performing ECT on weekends. Neither demographics nor diagnoses alone had influence on length of stay. Incorporation of LOS predictors into Medicare Inpatient Prospective Payment System (IPPS) would more accurately account for the complexity in the cost of caring for geropsychiatry patients.

Could adequate palliative care obviate assisted suicide?

Physician views regarding the relationship between palliative care and physician-assisted suicide (PAS) are poorly understood. This survey of Connecticut physicians (n = 2,805; 40% response rate) found physicians nearly evenly divided on the question of whether there is a role for PAS in systems where adequate palliative care is available (42% no, 41% yes, 17% uncertain). These groups differ significantly on numerous personal and practice characteristics (all p < .001), as well as perceptions of various risks of PAS (p < .001). Written comments by 152 respondents provide further insights. Views on the respective roles of palliative care and PAS are highly discordant, challenging the development of clinical standards for end-of-life care.

Depression in later-life Puerto Rican primary care patients: the role of illness, stress, social integration, and religiosity.

BACKGROUND: Older Puerto Ricans belong to two rapidly growing demographic groups known to have high rates of depression: the aging and Hispanic populations. Studies of depression in Puerto Ricans have primarily focused on the impact of demographic factors and health. This study expands previous research, examining the relationships between depression and social stressors, social support, and religiosity, for Puerto Rican primary care patients aged 50 and older. PATIENTS: Participants included 303 Puerto Ricans from six primary care clinics in a northeastern city. METHODS: Patients completed in-person interview in Spanish. The Composite International Diagnostic Interview indicated depressive disorders meeting DSM-IV criteria. Bivariate and multivariate relationships between depression and demographics, health, social stress and support, and religiosity were explored. RESULTS: One fifth of participants met DSM-IV criteria for major depression or dysthymia. Participants with the lowest income, more recent migration, and poor subjective health were significantly more likely to be depressed. In addition, rates of depression increased steeply for patients caring for grandchildren and those with personal or family legal problems. Seeing few relatives each month and needing more instrumental, emotional, or financial support were also related to higher rates of depression. Unexpectedly, low objective illness severity correlated with increased depression, whereas religiosity and religious participation had no relationship to depression. CONCLUSIONS: The findings presented here indicate the potential for social stressors and inadequate supports to substantially increase the risk of depression in older Puerto Ricans in primary care settings. Further studies should explore incorporating these social risk factors into improved prevention, clinical detection, and culturally sensitive treatment of older depressed Puerto Ricans.