From the title, you may be wondering whether this is another one of those esoteric, unintelligible statistics articles. Or whether the author is another pedantic statistician telling you how much you don't know. I hope that you will find that neither of these fears applies. There are no formulas, derivations, or complex figures here. And I am no “statistician,” at least not in the formal sense, although I do teach statistics. Rather, the focus of this article is to identify and explain, for the clinician consumer of the literature, four basic but often overlooked issues in statistics (as practiced in today's medical and social science journals). Although it is true that most clinicians are misinformed about things statistical (Wulff et al., 1987), it is also true that most academic psychologists and physician researchers—and a surprising number of statisticians—are too (Cohen, 1994; Falk & Greenbaum, 1995; Goodman, 1999a; Oakes, 1986).

It is both an honor and a privilege to introduce the winners of the sixth biennial IPA Research Awards in Psychogeriatrics, sponsored by Bayer AG. On behalf of IPA and the entire psychogeriatric community, I want to thank Bayer for their very generous support of these awards since their inception in 1989.

We used data from a 4-year prospective study of 2,558 primary care patients age 65 and older in a large staff model health maintenance organization to examine the association of clinically significant depressive symptoms and eight other chronic medical conditions with quality adjusted life years (QALYs). We developed linear regression models to examine the association of clinically significant depressive symptoms as defined by a score of 16 or greater on the Center for Epidemiological Studies Depression Scale and eight common chronic medical disorders at baseline with QALYs over the 4-year study period. Estimates of QALYs were derived from Quality of Well-Being Scale scores at baseline, at 2-year follow-up, and at 4-year follow-up. Individuals with clinically significant depressive symptoms at baseline had significantly lower QALYs over the 4-year study period than nondepressed subjects, even after adjusting for differences in age, gender, and the eight other chronic medical conditions. In terms of the entire study population, only arthritis and heart disease were more strongly associated with QALYs than depression.

This was an epidemiological study funded by the Indian Council of Medical Research and conducted in a representative rural geographical area in northern India. The study aimed to determine the pattern of psychiatric morbidity in those aged 60 years or above and to ascertain the causative/contributory role of biosociodemographic factors, if any. Three groups of subjects formed the sample: the geriatric psychiatrically ill and non-ill and the nongeriatric psychiatrically ill. The prevalence of psychiatric morbidity was found to be much higher in the geriatric group (43.32%) than in the nongeriatric group (4.66%). The psychiatric morbidity pattern consisted of neurotic depression, manic-depressive psychosis depression, and anxiety state in descending order of frequency. Socially, economically, and educationally disadvantaged subjects were found to be more psychiatrically ill. The data indicate that by the year 2000, there will be about 28 million psychiatrically ill geriatric persons in the country requiring the attention of health policy planners. The implications of these findings in light of the available services for psychiatrically ill geriatric persons have been discussed and future directions identified.

Confusion and agitation in elderly patients are crucial problems. This study tested Gerdner's mid-range theory of individualized music intervention for agitation. An experimental repeated measures pretest-posttest crossover design compared the immediate and residual effects of individualized music to classical “relaxation” music relative to baseline on the frequency of agitated behaviors in elderly persons with Alzheimer's disease and related disorders (ADRD). Thirty-nine subjects were recruited from six long-term-care facilities in Iowa. The sample consisted of 30 women and 9 men (mean age 82 years) with severe cognitive impairment. Baseline data were collected for 3 weeks. Findings from the Modified Hartsock Music Preference Questionnaire guided the selection of individualized music. Group A (n = 16) received individualized music for 6 weeks followed by a 2-week “washout” period and 6 weeks of classical “relaxation” music. Group B (n = 23) received the same protocol but in reverse order. Music interventions were presented for 30 minutes, two times per week. The Modified Cohen-Mansfield Agitation Inventory measured the dependent variable. A repeated measures analysis of variance with Bonferroni post hoc test showed a significant reduction in agitation during and following individualized music compared to classical music. This study expands science by testing and supporting a theoretically based intervention for agitation in persons with ADRD.

The purpose of this study was to examine the prevalence and correlation of cognitive impairments, major depression, and depressive symptoms among elderly medical inpatients, and to compare the degree of depressive symptomatology as well as cognitive deterioration in possible vascular dementia and possible Alzheimer's disease. In a department of internal medicine, 100 (36 male, 64 female) 65-year-old or older patients were examined by a semistructured interview, and assessed by the Hachinski Ischemic Scale, the Hamilton Rating Scale for Depression (HDS), and the Modified Mini-Mental State (MMMS) Examination. In our total sample, the MMMS total score was (±SD) 76.0 ± 15.5 and the HDS total score was (±SD) 12.0 ± 6.1. Based on DSM-IV criteria, major depression was established in 11 patients. Deterioration of cognitive functions was seen in 66 patients; cognitive impairment was mild in 30 patients, moderate in 19, and severe in 17. Forty-six patients had mild depressive symptoms and 27 had severe depressive symptoms. In summary, a high prevalence of cognitive dysfunction and depressive symptomatology was detected in our study, illustrating the importance of psychiatric care in elderly medical inpatients.

The experiences of 51 elderly depressed female patients with a standardized course “Coping with Depression and Anxiety” were investigated. Preliminary findings concerning the effectiveness of this course in 34 patients who completed the course will also be presented. This course consisted of psychoeducation and skills training. Depressive symptoms were scored by using the SCL-90 depression scale and the Geriatric Depression Scale. Results indicate that patients were very enthusiastic about the course and that there was no need to make major changes in its structure and content. Also, depressive symptoms were significantly reduced after completion of the course, which emphasizes the importance of this psychoeducational program in the treatment of depression in elderly female patients.

Objective: To determine the proportion of older adults with Alzheimer's disease presenting to a geriatric clinic with low body mass index (BMI), the proportion of these individuals recognized by clinicians as malnourished, and what patients' characteristics and caregivers' and clinicians' impressions are associated with low BMI. Design: Cross-sectional study. Setting: An outpatient geriatric clinic located in a university-affiliated teaching hospital. Participants: 340 patients with Alzheimer's disease, average age 75 years. Measurements: Individuals with a BMI below 21 were considered at risk of malnutrition. Physical examination and medical information were obtained from patients and caregivers by clinicians using a standardized assessment protocol. Clinicians' impression regarding evidence of malnutrition was obtained. Results: Forty-six patients (16%) had a BMI below 21. Clinicians reported evidence of potential malnutrition in 11 patients, 8 of whom had a BMI below 21. Using logistic regression, we found that women were five times more likely to have a BMI below 21 than men, and that individuals with low cognition were twice as likely to have a BMI below 21 than individuals with higher cognition. Conclusion: The proportion of patients with Alzheimer's disease with a BMI below 21 is similar to that encountered in the general population aged 65+. However, clinicians have difficulty identifying persons at risk of malnutrition according to BMI status. Women with low cognition were at increased risk of having a low BMI. Improvement in the detection of malnutrition is desirable. Further exploration of causal links between cognition and malnutrition is required.

Objective: This study tests the hypothesis that integrated family support, in which patients and caregivers are both supported by one professional staff, is more effective in influencing behavior problems and mood of the dementia patient than nonintegrated support, such as psychogeriatric day care only. Design: A quasi-experimental pretest-posttest control group design with matched groups was applied. Setting: Psychogeriatric day-care centers of four community centers and three nursing homes. Participants: Fifty-six dementia patients living at home and their caregivers. Intervention: The patients in the experimental group (n = 33) participated together with their caregivers in an integrated family support program, whereas the patients in the control group (n = 23) received psychogeriatric day care only. Measurements: Behavior problems and mood were observed using standardized behavior observation scales. Results: After 7 months the experimental support program, compared to the regular psychogeriatric day care, showed a large positive effect on the total number of behavior problems (effect size .75), and also specifically on the degree of inactivity (effect size .66) and nonsocial behavior (effect size .61). No effect on mood was found. Conclusions: In influencing the total amount of behavior problems, as well as the degree of inactivity and nonsocial behavior, the integrated family support program proved to be more effective than psychogeriatric day care. Because behavior problems are an important determinant for admission of persons with dementia into a nursing home, integrated family support may contribute to the delay of institutionalization.

Background: Previous research on risk of delirium in acute hospital settings identified mainly patient variables (e.g., age) that are not amenable to intervention. The purpose of this study was to develop a model for new delirium in hospitalized older patients that included process of care and social variables. Methods: A prospective cohort study was undertaken in a community hospital in Ontario, Canada. Research paticipants included 156 hospitalized patients age 65+ years and without delirium on admission who were admitted to a medical or surgical unit. The measures included daily appraisal of delirium using a standardized and validated tool, and assessment of patient, process of care, and social variables. Results: Delirium developed in 28 of the 156 patients (17.9%). Older age and cognitive impairment were significant patient variables. Significant process of care variables included a high number of medications administered during hospitalization, surgery, a high number of procedures during early hospitalization (e.g., x-rays, blood tests), and intensive care treatment. Conclusions: Approximately one older patient in five developed delirium after admission to a medical or surgical unit. Risks not easily amenable to intervention included age, cognitive dysfunction, surgery, and intensive care requirements. Risk factors that are potentially modifiable included number of medications and number of procedures. Future research might focus on the efficacy of such intervention to reduce new-onset delirium in acute hospital settings.