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Biomedical subjects

Wayne Katon

Publications and source records attributed to Wayne Katon.

At least 37 records · Page 2Linked to original sources
PubMed2005

Incontinence severity and major depression in incontinent women.

OBJECTIVE: Research has shown an association between urinary incontinence and depression. Studies that use community-based samples and major depressive disorder diagnostic criteria are needed. The objective of this study was to estimate the prevalence of and factors associated with major depression in women with urinary incontinence. METHODS: We conducted an age-stratified postal survey of 6,000 women aged 30-90 years. Subjects were randomly selected from enrollees in a large health maintenance organization in Washington state. Main outcome measures were prevalence of current major depression and adjusted odds ratios for factors associated with major depression in women with urinary incontinence. RESULTS: The response rate was 64% (n = 3,536) after applying exclusion criteria. The prevalence of urinary incontinence was 42% (n = 1,458). The prevalence of major depression was 3.7% (n = 129), with 2.2% in those without incontinence versus 6.1% in those with incontinence. Among women with incontinence, major depression prevalence rates differed by incontinence severity (2.1% in mild, 5.7% in moderate, and 8.3% in severe) and incontinence type (4.7% in stress, 6.6% in urge/mixed). Obesity (odds ratio [OR] 2.3, 95% confidence interval [CI] 1.3-4.0), current smoking (OR 2.7, 95% CI 1.5-4.9), lower educational attainment (OR 2.0, 95% CI 1.2-3.3), moderate incontinence (OR 2.7, 95% CI 1.1-6.6), and severe incontinence (OR 3.8, 95% CI 1.6-9.1) were each associated with increased odds of major depression in women with urinary incontinence, controlling for age and medical comorbidity. Compared with women with incontinence alone, women with comorbid incontinence and major depression had significantly greater decrements in quality of life and functional status and increased incontinence symptom burden. CONCLUSION: Women with moderate-to-severe urinary incontinence should be screened for comorbid major depression and offered treatment if depression is present. LEVEL OF EVIDENCE: II-2.

Adolescent↗
PubMed2005

Functional impact and health utility of anxiety disorders in primary care outpatients.

OBJECTIVE: The objective of this study was to examine the relative impact of anxiety disorders and major depression on functional status and health-related quality of life of primary care outpatients. METHOD: Four hundred eighty adult outpatients at an index visit to their primary care provider were classified by structured diagnostic interview as having anxiety disorders (panic disorder with or without agoraphobia, social phobia, and posttraumatic stress disorder; generalized anxiety disorder was also assessed in a subset) with or without major depression. Functional status, sick days from work, and health-related quality of life (including a preference-based measure) were assessed using standardized measures adjusting for the impact of comorbid medical illnesses. Relative impact of the various anxiety disorders and major depression on these indices was evaluated. RESULTS: In multivariate regression analyses simultaneously adjusting for age, sex, number of chronic medical conditions, education, and/or poverty status, each of major depression, panic disorder, posttraumatic stress disorder, and social phobia contributed independently and relatively equally to the prediction of disability and functional outcomes. Generalized anxiety disorder had relatively little impact on these indices when the effects of comorbid major depression were considered. Overall, anxiety disorders were associated with substantial decrements in preference-based health states. CONCLUSIONS: These observations demonstrate that the presence of each of 3 common anxiety disorders (ie, panic disorder, posttraumatic stress disorder, and social phobia)-over and above the impact of chronic physical illness, major depression, and other socioeconomic factors-contributes in an approximately additive fashion to the prediction of poor functioning, reduced health-related quality of life, and more sick days from work. Greater awareness of the deleterious impact of anxiety disorders in primary care is warranted.

Absenteeism↗
PubMed2005

Managed care, physician job satisfaction, and the quality of primary care.

OBJECTIVE: To determine the associations between managed care, physician job satisfaction, and the quality of primary care, and to determine whether physician job satisfaction is associated with health outcomes among primary care patients with pain and depressive symptoms. DESIGN: Prospective cohort study. SETTING: Offices of 261 primary physicians in private practice in Seattle. PATIENTS: We screened 17,187 patients in waiting rooms, yielding a sample of 1,514 patients with pain only, 575 patients with depressive symptoms only, and 761 patients with pain and depressive symptoms; 2,004 patients completed a 6-month follow-up survey. MEASUREMENTS AND RESULTS: For each patient, managed care was measured by the intensity of managed care controls in the patient's primary care office, physician financial incentives, and whether the physician read or used back pain and depression guidelines. Physician job satisfaction at baseline was measured through a 6-item scale. Quality of primary care at follow-up was measured by patient rating of care provided by the primary physician, patient trust and confidence in primary physician, quality-of-care index, and continuity of primary physician. Outcomes were pain interference and bothersomeness, Symptom Checklist for Depression, and restricted activity days. Pain and depression patients of physicians with greater job satisfaction had greater trust and confidence in their primary physicians. Pain patients of more satisfied physicians also were less likely to change physicians in the follow-up period. Depression patients of more satisfied physicians had higher ratings of the care provided by their physicians. These associations remained after controlling statistically for managed care. Physician job satisfaction was not associated with health outcomes. CONCLUSIONS: For primary care patients with pain or depressive symptoms, primary physician job satisfaction is associated with some measures of patient-rated quality of care but not health outcomes.

Adult↗
PubMed2005

Treatment of depression improves physical functioning in older adults.

OBJECTIVES: To determine the effect of collaborative care management for depression on physical functioning in older adults. DESIGN: Multisite randomized clinical trial. SETTING: Eighteen primary care clinics from eight healthcare organizations. PARTICIPANTS: One thousand eight hundred one patients aged 60 and older with major depressive disorder. INTERVENTION: Patients were randomized to the Improving Mood: Promoting Access to Collaborative Treatment (IMPACT) intervention (n=906) or to a control group receiving usual care (n=895). Control patients had access to all health services available as part of usual care. Intervention patients had access for 12 months to a depression clinical specialist who coordinated depression care with their primary care physician. MEASUREMENTS: The 12-item short form Physical Component Summary (PCS) score (range 0-100) and instrumental activities of daily living (IADLs) (range 0-7). RESULTS: The mean patient age was 71.2, 65% were women, and 77% were white. At baseline, the mean PCS was 40.2, and the mean number of IADL dependencies was 0.7; 45% of participants rated their health as fair or poor. Intervention patients experienced significantly better physical functioning at 1 year than usual-care patients as measured using between-group differences on the PCS of 1.71 (95% confidence interval (CI)=0.96-2.46) and IADLs of -0.15 (95% CI=-0.29 to -0.01). Intervention patients were also less likely to rate their health as fair or poor (37.3% vs 52.4%, P<.001). Combining both study groups, patients whose depression improved were more likely to experience improvement in physical functioning. CONCLUSION: The IMPACT collaborative care model for late-life depression improves physical function more than usual care.

Activities of Daily Living↗
PubMed2005

Impact of comorbid panic and posttraumatic stress disorder on outcomes of collaborative care for late-life depression in primary care.

OBJECTIVE: Comorbid anxiety disorders may result in worse depression treatment outcomes. The authors evaluated the effect of comorbid panic disorder and posttraumatic stress disorder (PTSD) on response to a collaborative-care intervention for late-life depression in primary care. METHODS: A total of 1,801 older adults with depression were randomized to a collaborative-care depression treatment model versus usual care and assessed at baseline, 3, 6, and 12 months, comparing differences among participants with comorbid panic disorder (N=262) and PTSD (N=191) and those without such comorbid anxiety disorders. RESULTS: At baseline, patients with comorbid anxiety reported higher levels of psychiatric and medical illness, greater functional impairment, and lower quality of life. Participants without comorbid anxiety who received collaborative care had early and lasting improvements in depression compared with those in usual care. Participants with comorbid panic disorder showed similar outcomes, whereas those with comorbid PTSD showed a more delayed response, requiring 12 months of intervention to show a significant effect. At 12 months, however, outcomes were comparable. Interactions of intervention status by comorbid PTSD or panic disorder were not statistically significant, suggesting that the collaborative-care model performed significantly better than usual care in depressed older adults both with and without comorbid anxiety. CONCLUSIONS: Collaborative care is more effective than usual care for depressed older adults with and without comorbid panic disorder and PTSD, although a sustained treatment response was slower to emerge for participants with PTSD. Intensive and prolonged follow-up may be needed for depressed older adults with comorbid PTSD.

Age Factors↗
PubMed2005

Making the case for caregiver research in geriatric psychiatry.

Research on caregiver health has seen a groundswell of interest in the last few years. Unfortunately, most of this literature has appeared in venues not usually seen by psychiatrist-geriatricians. In this article, the authors argue that caregiver research is not only relevant to the geriatric mental health community, but it is especially important to geriatric psychiatry. To do this, they focus on five areas: 1) an overview of caregiver outcomes and metaanalysis of relationships of caregiver distress/psychiatric morbidity with physiological/physical indices; 2) definitions and examples of moderators and mediators of relationships of caregiver status with health indices, including comorbidity of caregiving with psychiatric/medical illnesses; 3) caregiver/care-recipient trajectories and reciprocal relationships among dyads; 4) prospective studies; and, 5) areas to consider in caregiver interventions. Great strides have been made in caregiver research, but much more needs to be done. Psychiatric geriatricians are well placed to advance caregiver research because of their unique training in medicine, psychotherapy, pharmacology, and aging. They hope the discussion of this research will encourage work in this important area.

Aged↗
PubMed2005

Work disability among individuals with diabetes.

OBJECTIVE: Diabetes is rapidly increasing in prevalence among working-age adults, but little is known about the clinical characteristics that predict work disability in this population. This study assessed clinical predictors of work disability among working-age individuals with diabetes. RESEARCH DESIGN AND METHODS: In a cohort of diabetic individuals (n = 1,642) enrolled in a large health maintenance organization, excluding homemakers and retirees, we assessed the relation of diabetes severity, chronic disease comorbidity, depressive illness, and behavioral risk factors with work disability. Three indicators of work disability were assessed: being unable to work or otherwise being unemployed; missing > or =5 days from work in the prior month; and having severe difficulty with work tasks. RESULTS: In the study population, 19% had significant work disability: 12% were unemployed, 7% of employed subjects had missed > or =5 days from work in the prior month, and 4% of employed subjects reported having had severe difficulty with work tasks. Depressive illness, chronic disease comorbidity, and diabetes symptoms were associated with all three types of work disability. Diabetes complications predicted unemployment and overall work disability status, whereas obesity and sedentary lifestyle did not predict work disability. Among subjects experiencing both major depression and three or more diabetes complications, >50% were unemployed; of those with significant work disability, half met the criteria for major or minor depression. CONCLUSIONS: Depressive illness was strongly associated with unemployment and problems with work performance. Disease severity indicators, including complications and chronic disease comorbidity, were associated with unemployment and overall work disability status. Effective management of work disability among diabetic patients may need to address both physical and psychological impairments.

Comorbidity↗
PubMed2004

The effectiveness of depression care management on diabetes-related outcomes in older patients.

BACKGROUND: Depression frequently occurs in combination with diabetes mellitus, adversely affecting the course of illness. OBJECTIVE: To determine whether enhancing care for depression improves affective and diabetic outcomes in older adults with diabetes and depression. DESIGN: Preplanned subgroup analysis of the Improving Mood-Promoting Access to Collaborative Treatment (IMPACT) randomized, controlled trial. SETTING: 18 primary care clinics from 8 health care organizations in 5 states. PATIENTS: 1801 patients 60 years of age or older with depression; 417 had coexisting diabetes mellitus. INTERVENTION: A care manager offered education, problem-solving treatment, or support for antidepressant management by the patient's primary care physician; diabetes care was not specifically enhanced. MEASUREMENTS: Assessments at baseline and at 3, 6, and 12 months for depression, functional impairment, and diabetes self-care behaviors. Hemoglobin A(1c) levels were obtained for 293 patients at baseline and at 6 and 12 months. RESULTS: At 12 months, diabetic patients who were assigned to intervention had less severe depression (range, 0 to 4 on a checklist of 20 depression items; between-group difference, -0.43 [95% CI, -0.57 to -0.29]; P < 0.001) and greater improvement in overall functioning (range, 0 [none] to 10 [unable to perform activities]; between-group difference, -0.89 [CI, -1.46 to -0.32]) than did participants who received usual care. In the intervention group, weekly exercise days increased (between-group difference, 0.50 day [CI, 0.12 to 0.89 day]; P = 0.001); other self-care behaviors were not affected. At baseline, mean (+/-SD) hemoglobin A1c levels were 7.28% +/- 1.43%; follow-up values were unaffected by the intervention (P > 0.2). LIMITATIONS: Because patients had good glycemic control at baseline, power to detect small but clinically important improvements in glycemic control was limited. CONCLUSIONS: Collaborative care improves affective and functional status in older patients with depression and diabetes; however, among patients with good glycemic control, such care minimally affects diabetes-specific outcomes.

Aged↗
PubMed2004

Quality of care for medicaid-covered youth treated with antidepressant therapy.

BACKGROUND: Although antidepressant use has increased in pediatric populations, few studies have addressed the quality of follow-up care or duration of treatment for depressed youth. OBJECTIVE: To evaluate the quality of care for antidepressant-treated youth, using the Health Plan Employer Data and Information Set guidelines (>or=3 visits in the 3 months after a new antidepressant prescription fill and continuation of antidepressant use at 3 and 6 months) as a benchmark. DESIGN: Administrative records were examined for 1205 Medicaid-covered youth (aged 5-18 years) who presented with a "new episode" of depression in 1998. Statistics were generated to describe the number of follow-up visits and duration of treatment within 6 months of first prescription fill. RESULTS: A total of 507 (42.1%) youth with new episodes of depression were treated with antidepressants. Selective serotonin reuptake inhibitors accounted for 80.9% of prescriptions. Twenty-eight percent (28.1%) of youth with an antidepressant fill had 3 or more follow-up visits in the subsequent 3 months; however, an additional 29.2% had no further provider visits. Selective serotonin reuptake inhibitors were continued by 46.6% of treated youth at 3 months and by 26.3% at 6 months. CONCLUSIONS: Many antidepressant-treated youth do not receive adequate follow-up or duration of treatment. Future studies should address reasons for poor follow-up and methods to improve monitoring for these youth.

Adolescent↗
PubMed2004

A randomized effectiveness trial of stepped collaborative care for acutely injured trauma survivors.

CONTEXT: Although posttraumatic stress disorder (PTSD) and alcohol abuse frequently occur among acutely injured trauma survivors, few real-world interventions have targeted these disorders. OBJECTIVE: We tested the effectiveness of a multifaceted collaborative care (CC) intervention for PTSD and alcohol abuse. DESIGN: Randomized effectiveness trial. PARTICIPANTS: We recruited a population-based sample of 120 male and female injured surgical inpatients 18 or older at a level I trauma center. INTERVENTION: Patients were randomly assigned to the CC intervention (n = 59) or the usual care (UC) control condition (n = 61). The CC patients received stepped care that consisted of (1) continuous postinjury case management, (2) motivational interviews targeting alcohol abuse/dependence, and (3) evidence-based pharmacotherapy and/or cognitive behavioral therapy for patients with persistent PTSD at 3 months after injury. MAIN OUTCOME MEASURES: We used the PTSD symptomatic criteria (PTSD Checklist) at baseline and 1, 3, 6, and 12 months after injury, and alcohol abuse/dependence (Composite International Diagnostic Interview) at baseline and 6 and 12 months after injury. RESULTS: Random-coefficient regression analyses demonstrated that over time, CC patients were significantly less symptomatic compared with UC patients with regard to PTSD (P =.01) and alcohol abuse/dependence (P =.048). The CC group demonstrated no difference (-0.07%; 95% confidence interval [CI], -4.2% to 4.3%) in the adjusted rates of change in PTSD from baseline to 12 months, whereas the UC group had a 6% increase (95% CI, 3.1%-9.3%) during the year. The CC group showed on average a decrease in the rate of alcohol abuse/dependence of -24.2% (95% CI, -19.9% to -28.6%), whereas the UC group had on average a 12.9% increase (95% CI, 8.2%-17.7%) during the year. CONCLUSIONS: Early mental health care interventions can be feasibly and effectively delivered from trauma centers. Future investigations that refine routine acute care treatment procedures may improve the quality of mental health care for Americans injured in the wake of individual and mass trauma.

Adult↗
PubMed2004

Common comorbidity scales were similar in their ability to predict health care costs and mortality.

OBJECTIVE: To compare the ability of commonly used measures of medical comorbidity (ambulatory care groups [ACGs], Charlson comorbidity index, chronic disease score, number of prescribed medications, and number of chronic diseases) to predict mortality and health care costs over 1 year. STUDY DESIGN AND SETTING: A prospective cohort study of community-dwelling older adults (n=3,496) attending a large primary care practice. RESULTS: For predicting health care charges, the number of medications had the highest predictive validity (R(2)=13.6%) after adjusting for demographics. ACGs (R(2)=16.4%) and the number of medications (15.0%) had the highest predictive validity for predicting ambulatory visits. ACGs and the Charlson comorbidity index (area under the receiver operator characteristic [ROC] curve=0.695-0.767) performed better than medication-based measures (area under the ROC curve=0.662-0.679) for predicting mortality. There is relatively little difference, however, in the predictive validity across these scales. CONCLUSION: In an outpatient setting, a simple count of medications may be the most efficient comorbidity measure for predicting utilization and health-care charges over the ensuing year. In contrast, diagnosis-based measures have greater predictive validity for 1-year mortality. Current comorbidity measures, however, have only poor to moderate predictive validity for costs or mortality over 1 year.

Black or African American↗
PubMed2004

Posttraumatic distress, alcohol disorders, and recurrent trauma across level 1 trauma centers.

BACKGROUND: Injured survivors of individual and mass trauma receive their initial evaluation in acute care. Few investigations have comprehensively screened for posttraumatic stress disorder (PTSD) symptoms and related comorbidities across sites. METHODS: This investigation included 269 randomly selected injury survivors hospitalized at two level 1 trauma centers. All patients were screened for PTSD, depressive, and peritraumatic dissociative symptoms during their surgical inpatient admission. Prior traumatic life events and alcohol abuse/dependence also were assessed. RESULTS: In this study, 58% of the patients demonstrated high levels of immediate posttraumatic distress or alcohol abuse/dependence. Regression analyses identified greater prior trauma, female gender, nonwhite ethnicity, and site as significant independent predictors for high levels of posttraumatic distress. CONCLUSIONS: High levels of posttraumatic distress, recurrent trauma, and alcohol abuse/dependence were present in more than half of acute care inpatients. Early mental health screening and intervention procedures that target both PTSD and alcohol use should be developed for acute care settings.

Adult↗
PubMed2004

Quality of care for primary care patients with anxiety disorders.

OBJECTIVE: This study evaluated quality of care for primary care patients with anxiety disorders in university-affiliated outpatient clinics in Los Angeles, San Diego, and Seattle. METHOD: Three hundred sixty-six primary care outpatients who were diagnosed with panic disorder, generalized anxiety disorder, social phobia, and/or posttraumatic stress disorder (with or without major depression) were surveyed about care received in the prior 3 months. Quality indicators were mental health referral, anxiety counseling, and use of appropriate antianxiety medication during the previous 3 months. RESULTS: Approximately one-third of patients with anxiety disorders had received counseling from their primary care provider in the prior 3 months. Fewer than 10% had receiving counseling from a mental health professional that included multiple elements of cognitive behavior therapy. Approximately 40% had received appropriate antianxiety medications in the previous 3 months, although only 25% had received them at a minimally adequate dose and duration. Overall, fewer than one in three patients had received either psychotherapy or pharmacotherapy that met a criterion for quality care. In multivariate analyses, patients with comorbid depression and/or medical illness were more likely-and patients from ethnic minorities were less likely-to receive appropriate antianxiety medications. CONCLUSIONS: Rates of quality care for anxiety disorders are moderate to low in university-affiliated primary care practices. Although an appropriate type of pharmacotherapy was frequently used, it was often of inadequate duration. Cognitive behavior therapy was markedly underused. These findings emphasize the need for practice guidelines and implementation of quality improvement programs for anxiety disorders in primary care.

Ambulatory Care↗
PubMed2004

Behavioral and clinical factors associated with depression among individuals with diabetes.

OBJECTIVE: The goal of this study was to determine the behavioral and clinical characteristics of diabetes that are associated with depression after controlling for potentially confounding variables. RESEARCH DESIGN AND METHODS: A population-based mail survey was sent to patients with diabetes from nine primary care clinics of a health maintenance organization. The Patient Health Questionnaire was used to diagnose depression, and automated diagnostic, pharmacy, and laboratory data were used to measure diabetes treatment intensity, HbA(1c) levels, and diabetes complications. RESULTS: Independent factors that were associated with a significantly higher likelihood of meeting criteria for major depression included younger age, female sex, less education, being unmarried, BMI > or = >30 kg/m(2), smoking, higher nondiabetic medical comorbidity, higher numbers of diabetes complications in men, treatment with insulin, and higher HbA(1c) levels in patients <65 years of age. Independent factors associated with a significantly higher likelihood of meeting criteria for minor depression included younger age, less education, non-Caucasian status, BMI > or = 30 kg/m(2), smoking, longer duration of diabetes, and a higher number of complications in older (> or = 65 years) patients. CONCLUSIONS: Smoking and obesity were associated with a higher likelihood of meeting criteria for major and minor depression. Diabetes complications and elevated HbA(1c) were associated with major depression among demographic subgroups: complications among men and HbA(1c) among individuals <65 years of age. Older patients with a higher number of complications had an increased likelihood of minor depression.

Age Factors↗
PubMed2004

Relationship of depression and diabetes self-care, medication adherence, and preventive care.

OBJECTIVE: We assessed whether diabetes self-care, medication adherence, and use of preventive services were associated with depressive illness. RESEARCH DESIGN AND METHODS: In a large health maintenance organization, 4,463 patients with diabetes completed a questionnaire assessing self-care, diabetes monitoring, and depression. Automated diagnostic, laboratory, and pharmacy data were used to assess glycemic control, medication adherence, and preventive services. RESULTS: This predominantly type 2 diabetic population had a mean HbA(1c) level of 7.8 +/- 1.6%. Three-quarters of the patients received hypoglycemic agents (oral or insulin) and reported at least weekly self-monitoring of glucose and foot checks. The mean number of HbA(1c) tests was 2.2 +/- 1.3 per year and was only slightly higher among patients with poorly controlled diabetes. Almost one-half (48.9%) had a BMI >30 kg/m(2), and 47.8% of patients exercised once a week or less. Pharmacy refill data showed a 19.5% nonadherence rate to oral hypoglycemic medicines (mean 67.4 +/- 74.1 days) in the prior year. Major depression was associated with less physical activity, unhealthy diet, and lower adherence to oral hypoglycemic, antihypertensive, and lipid-lowering medications. In contrast, preventive care of diabetes, including home-glucose tests, foot checks, screening for microalbuminuria, and retinopathy was similar among depressed and nondepressed patients. CONCLUSIONS: In a primary care population, diabetes self-care was suboptimal across a continuum from home-based activities, such as healthy eating, exercise, and medication adherence, to use of preventive care. Major depression was mainly associated with patient-initiated behaviors that are difficult to maintain (e.g., exercise, diet, medication adherence) but not with preventive services for diabetes.

Body Mass Index↗
PubMed2003

Effect of improving depression care on pain and functional outcomes among older adults with arthritis: a randomized controlled trial.

CONTEXT: Depression and arthritis are disabling and common health problems in late life. Depression is also a risk factor for poor health outcomes among arthritis patients. OBJECTIVE: To determine whether enhancing care for depression improves pain and functional outcomes in older adults with depression and arthritis. DESIGN, SETTING, AND PARTICIPANTS: Preplanned subgroup analyses of Improving Mood-Promoting Access to Collaborative Treatment (IMPACT), a randomized controlled trial of 1801 depressed older adults (> or =60 years), which was performed at 18 primary care clinics from 8 health care organizations in 5 states across the United States from July 1999 to August 2001. A total of 1001 (56%) reported coexisting arthritis at baseline. INTERVENTION: Antidepressant medications and/or 6 to 8 sessions of psychotherapy (Problem-Solving Treatment in Primary Care). MAIN OUTCOME MEASURES: Depression, pain intensity (scale of 0 to 10), interference with daily activities due to arthritis (scale of 0 to 10), general health status, and overall quality-of-life outcomes assessed at baseline, 3, 6, and 12 months. RESULTS: In addition to reduction in depressive symptoms, the intervention group compared with the usual care group at 12 months had lower mean (SE) scores for pain intensity (5.62 [0.16] vs 6.15 [0.16]; between-group difference, -0.53; 95% confidence interval [CI], -0.92 to -0.14; P =.009), interference with daily activities due to arthritis (4.40 [0.18] vs 4.99 [0.17]; between-group difference, -0.59; 95% CI, -1.00 to -0.19; P =.004), and interference with daily activities due to pain (2.92 [0.07] vs 3.17 [0.07]; between-group difference, -0.26; 95% CI, -0.41 to -0.10; P =.002). Overall health and quality of life were also enhanced among intervention patients relative to control patients at 12 months. CONCLUSIONS: In a large and diverse population of older adults with arthritis (mostly osteoarthritis) and comorbid depression, benefits of improved depression care extended beyond reduced depressive symptoms and included decreased pain as well as improved functional status and quality of life.

Activities of Daily Living↗
PubMed2003

Depression and pain comorbidity: a literature review.

Because depression and painful symptoms commonly occur together, we conducted a literature review to determine the prevalence of both conditions and the effects of comorbidity on diagnosis, clinical outcomes, and treatment. The prevalences of pain in depressed cohorts and depression in pain cohorts are higher than when these conditions are individually examined. The presence of pain negatively affects the recognition and treatment of depression. When pain is moderate to severe, impairs function, and/or is refractory to treatment, it is associated with more depressive symptoms and worse depression outcomes (eg, lower quality of life, decreased work function, and increased health care utilization). Similarly, depression in patients with pain is associated with more pain complaints and greater impairment. Depression and pain share biological pathways and neurotransmitters, which has implications for the treatment of both concurrently. A model that incorporates assessment and treatment of depression and pain simultaneously is necessary for improved outcomes.

Antidepressive Agents↗