Publications by authors named "Wayne J Katon"

Objective: To assess the feasibility and acceptability of a mobile health platform supporting Collaborative Care.

Method: Collaborative Care patients (n=17) used a smartphone app to transmit PHQ-9 and GAD-7 scores and sensor data to a dashboard used by one care manager. Patients completed usability and satisfaction surveys and qualitative interviews at 4weeks and the care manager completed a qualitative interview.

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Objective: Among adults with diabetes, depression is associated with poorer adherence to cardiometabolic medications in ongoing users; however, it is unknown whether this extends to early adherence among patients newly prescribed these medications. This study examined whether depressive symptoms among adults with diabetes newly prescribed cardiometabolic medications are associated with early and long-term nonadherence.

Patients And Methods: An observational follow-up of 4,018 adults with type 2 diabetes who completed a survey in 2006 and were newly prescribed oral antihyperglycemic, antihypertensive, or lipid-lowering agents within the following year at Kaiser Permanente Northern California was conducted.

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Objective: The comorbidity of posttraumatic stress disorder (PTSD) with antenatal depression poses increased risks for postpartum depression and may delay or diminish response to evidence-based depression care. In a secondary analysis of an 18-month study of collaborative care for perinatal depression, the authors hypothesized that pregnant, depressed, socioeconomically disadvantaged women with comorbid PTSD would show more improvement in the MOMCare intervention providing Brief Interpersonal Psychotherapy and/or antidepressants, compared to intensive public health Maternity Support Services (MSS-Plus).

Methods: A multisite randomized controlled trial with blinded outcome assessment was conducted in the Seattle-King County Public Health System, July 2009-January 2014.

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Importance: It is often difficult for members of the US military to access high-quality care for posttraumatic stress disorder (PTSD) and depression.

Objective: To determine effectiveness of a centrally assisted collaborative telecare (CACT) intervention for PTSD and depression in military primary care.

Design, Setting, And Participants: The STEPS-UP study (Stepped Enhancement of PTSD Services Using Primary Care) is a randomized trial comparing CACT with usual integrated mental health care for PTSD or depression.

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Objective: Screening adolescents for depression is recommended by the US Preventive Services Task Force. We sought to evaluate the impact of positive depression screens in an adolescent population on health care utilization and costs from a payer perspective.

Methods: We conducted depression screening among 13- to 17-year-old adolescents enrolled in a large integrated care system using the 2- and 9-item Patient Health Questionnaires (PHQ).

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Background: Both antenatal and postpartum depression have adverse, lasting effects on maternal and child well-being. Socioeconomically disadvantaged women are at increased risk for perinatal depression and have experienced difficulty accessing evidence-based depression care. The authors evaluated whether "MOMCare,"a culturally relevant, collaborative care intervention, providing a choice of brief interpersonal psychotherapy and/or antidepressants, is associated with improved quality of care and depressive outcomes compared to intensive public health Maternity Support Services (MSS-Plus).

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Introduction: Vasomotor symptoms (VMS), including hot flashes and night sweats, are common among postmenopausal women and are associated with reduced health related quality of life (HRQOL).

Purpose Of The Study: To determine whether Veterans are more likely to report VMS than non-Veterans, and whether the association of VMS with HRQOL varies by Veteran status.

Design And Methods: We used data from the Women's Health Initiative Observational Study, including self-reported baseline VMS presence and severity, and HRQOL at follow-up Year 3 (RAND Short Form 36-Item Health Survey).

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Objective: To determine if depression, cognitive impairment without dementia (CIND), and/or dementia are each independently associated with risk of ischemic stroke and to identify characteristics that could modify these associations.

Methods: This retrospective-cohort study examined a population-based sample of 7031 Americans older than 50 years participating in the Health and Retirement Study (1998-2008) who consented to have their interviews linked to their Medicare claims. The eight-item Center for Epidemiologic Studies Depression Scale and/or International Classification of Disease, Ninth Revision, Clinical Modification (ICD-9-CM) depression diagnoses were used to identify baseline depression.

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Objective: To understand collaborative care psychiatric consultants' views and practices on making the diagnosis of and recommending treatment for bipolar disorder in primary care using collaborative care.

Method: We conducted a focus group at the University of Washington in December 2013 with nine psychiatric consultants working in primary-care-based collaborative care in Washington State. A grounded theory approach with open coding and the constant comparative method revealed categories where emergent themes were saturated and validated through member checking, and a conceptual model was developed.

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Objective: The aim of this study is to determine if depression is independently associated with risk of hospitalization for pneumonia after adjusting for demographics, medical comorbidity, health-risk behaviors, baseline cognition and functional impairments.

Methods: This secondary analysis of prospectively collected data examined a population-based sample of 6704 Health and Retirement Study (HRS) (1998-2008) participants>50years old who consented to have their interviews linked to their Medicare claims and were without a dementia diagnosis. The eight-item Center for Epidemiologic Studies Depression Scale and/or International Classification of Disease, Ninth Revision, Clinical Modification (ICD-9-CM) depression diagnoses were used to identify baseline depression.

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Objective: To determine if the presence of in-hospital substantial acute stress symptoms, as well as substantial depressive or posttraumatic stress disorder symptoms at 3 months post-ICU, are associated with increased acute care service utilization over the course of the year following medical-surgical ICU admission.

Design: Longitudinal cohort study.

Setting: Academic medical center.

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Background: Depression during pregnancy has been demonstrated to be predictive of low birthweight, prematurity, and postpartum depression. These adverse outcomes potentially have lasting effects on maternal and child well-being. Socio-economically disadvantaged women are twice as likely as middle-class women to meet diagnostic criteria for antenatal major depression (MDD), but have proven difficult to engage and retain in treatment.

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Background: The relative contributions of depression, cognitive impairment without dementia (CIND), and dementia to the risk of potentially preventable hospitalizations in older adults are not well understood.

Objective(s): To determine if depression, CIND, and/or dementia are each independently associated with hospitalizations for ambulatory care-sensitive conditions (ACSCs) and rehospitalizations within 30 days after hospitalization for pneumonia, congestive heart failure (CHF), or myocardial infarction (MI).

Design: Prospective cohort study.

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Background And Objectives: Comorbid major depression is associated with adverse health outcomes in patients with diabetes, but little is known regarding its associations with long-term renal outcomes in this population. Furthermore, the impact of minor depression on renal outcomes is not known. This study evaluated associations between depressive symptoms and risk of incident ESRD in a diabetic cohort.

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Background: Although patients with type 2 diabetes are twice as likely to develop dementia as those without this disease, prediction of who has the highest future risk is difficult. We therefore created and validated a practical summary risk score that can be used to provide an estimate of the 10 year dementia risk for individuals with type 2 diabetes.

Methods: Using data from two longitudinal cohorts of patients with type 2 diabetes (aged ≥60 years) with 10 years of follow-up, we created (n=29,961) and validated (n=2413) the risk score.

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Background: Collaborative care interventions for psychiatric disorders combine several components integrated into the medical setting: (1) systematic psychiatric assessment, (2) use of a nonphysician care manager to perform longitudinal symptom monitoring, treatment interventions, and care coordination, and (3) specialist-provided stepped-care recommendations. Collaborative care interventions have now been evaluated in a wide spectrum of care settings and offer great promise as a way of increasing quality of patient care, improving health of populations, and reducing health care costs.

Methods: A systematic search of PubMed/MEDLINE databases was performed for publications between January 1970 and May 2013 to identify articles describing collaborative care and related interventions.

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Health disparities in minority populations are well recognized. Hispanics and Latinos constitute the largest ethnic minority group in the United States; a significant proportion receives their care via a safety net. The prevalence of diabetes mellitus and comorbid depression is high among this group, but the uptake of evidence-based collaborative depression care management has been suboptimal.

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Objective: To obtain an estimate of the prevalence of bipolar disorder in primary care.

Methods: We used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses method to conduct a systematic review in January 2013. We searched seven databases with a comprehensive list of search terms.

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Purpose: To determine if single nucleotide polymorphisms of the corticotrophin-releasing hormone binding protein (CRHBP, rs10055255) and CRH receptor type 1 (CRHR1, rs1876831) were associated with posttraumatic stress disorder (PTSD) and depressive symptoms following medical-surgical intensive care unit (ICU) hospitalization.

Materials And Methods: We extracted DNA for genotyping from saliva samples of 93 ICU patients enrolled in a prospective cohort investigation. Follow-up interviews conducted 3 and 12-months post-ICU included assessment of PTSD symptoms with the PTSD Checklist-Civilian Version and depressive symptoms with the Patient Health Questionnaire-9.

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Rationale: Prior studies have found that cognitive dysfunction is common in intensive care unit (ICU) survivors. Yet, relatively little is known about potentially modifiable risk factors for longer-term post-ICU cognitive impairment.

Objectives: To determine if in-hospital acute stress symptoms were associated with impaired 12-month cognitive functioning among ICU survivors.

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Importance: Depression has been identified as a risk factor for dementia among patients with type 2 diabetes mellitus but the cognitive domains and patient groups most affected have not been identified.

Objective: To determine whether comorbid depression in patients with type 2 diabetes accelerates cognitive decline.

Design: A 40-month cohort study of participants in the Action to Control Cardiovascular Risk in Diabetes-Memory in Diabetes (ACCORD-MIND) trial.

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Background: Bipolar disorder prevalence in primary care patients with depression or other psychiatric complaints has been measured in several studies but has not been systematically reviewed.

Objective: To systematically review studies measuring bipolar disorder prevalence in primary care patients with depression or other psychiatric complaints.

Methods: We conducted a systematic review using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses method in January 2013.

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