Associations between adult attachment style and health risk behaviors in an adult female primary care population

OBJECTIVE

To examine the relationship between adult attachment style and health risk behaviors among adult women in a primary care setting.

METHODS

In this analysis of a population of women enrolled in a large health maintenance organization (N=701), we examined the relationship between anxious and avoidant dimensions of adult attachment style and a variety of sexual, substance-related, and other health risk behaviors. After conducting descriptive statistics of the entire population, we determined the relationships between the two attachment dimensions and health behaviors using multiple regression analyses in which we controlled for demographic and socioeconomic factors.

RESULTS

After adjustment for covariates, the anxious dimension of attachment style was significantly associated with increased odds of self-report of having sex without knowing a partner's history, having multiple (≥2) male partners in the past year, and history of having a sexually transmitted infection (ORs [95% CIs]=1.11 [1.03, 1.20], 1.23 [1.04, 1.45]; and 1.17 [1.05, 1.30], respectively). The avoidant attachment dimension was associated with increased odds of being a smoker and not reporting regular seatbelt use (ORs [95% CIs]=1.15 [1.01, 1.30] and 1.16 [1.01, 1.33], respectively).

CONCLUSIONS

Both anxious and avoidant dimensions of attachment were associated with health risk behaviors in this study. This framework may be a useful tool to allow primary care clinicians to guide screening and intervention efforts.

Suicidal ideation during pregnancy: prevalence and associated factors among low-income women in São Paulo, Brazil

The aim of this study was to estimate the prevalence and correlates of suicidal ideation among low-income pregnant women living in Brazil. We performed a cross-sectional analysis of 831 women surveyed during 20 to 30 weeks of pregnancy using the Self-Report Questionnaire-20. The prevalence of suicidal ideation was 6.3%. The factors associated with suicidal ideation were common mental disorders, single partner status, past psychiatric history, and smoking tobacco. All cases of suicidal ideation were associated with common mental disorders.

Depressive symptom deterioration among predominantly Hispanic diabetes patients in safety net care

OBJECTIVE

This study examines clinical predictors of symptom deterioration (relapse/recurrence) at the completion of a clinical intervention trial of depressed, low-income, predominantly Hispanic diabetes patients who were randomized to socio-culturally adapted collaborative depression treatment or usual care and who no longer met clinically significant depression criteria at 12 months post-trial baseline.

METHODS

A sub-cohort of 193 diabetes patients with major depression symptoms at baseline, who were randomized to a 12-month collaborative care intervention (INT) (problem-solving therapy and/or pharmacotherapy, telephone symptom monitoring/relapse prevention, behavioral activation and patient navigation support) or enhanced usual care (EUC), and who did not meet major depression criteria at 12 months were subsequently observed over 18 to 24 months.

RESULTS

Post-trial depression symptom deterioration was similar between INT (35.2%) and EUC (35.3%) groups. Among the combined groups, significant predictors of symptom deterioration were baseline history of previous depression and/or dysthymia (odds ratio [OR] = 2.66), 12-month PHQ-9 score (OR = 1.22), antidepressant treatment receipt during the initial 12-months (OR = 2.38), 12-month diabetes symptoms (OR = 2.27), and new ICD-9 medical diagnoses in the initial 12 months (OR = 1.11) (R2 = 27%; max-rescaled R2 = 37%; likelihood ratio test, χ2 = 59.79, df = 5, P < 0.0001).

CONCLUSIONS

Among predominantly Hispanic diabetes patients in community safety net primary care clinics whose depression had improved over 1 year, more than one-third experienced symptom deterioration over the following year. A primary care management depression care protocol that includes ongoing depression symptom monitoring, antidepressant adherence, and diabetes and co-morbid illness monitoring plus depression medication adjustment and behavioral activation may reduce and/or effectively treat depression symptom deterioration.

Association between childhood sexual abuse and transactional sex in youth aging out of foster care

PURPOSE

To evaluate the association between history of childhood sexual abuse (CSA) and having transactional sex among adolescents who have been in foster care.

METHODS

We used an existing dataset of youth transitioning out of foster care. Independent CSA variables included self report of history of sexual molestation and rape when participants were, on average, 17 years of age. Our outcome variables were self-report of having transactional sex ever and in the past year, when participants were an average age of 19 years. Separate multiple logistic regression analyses were conducted to assess the associations between CSA variables and transactional sex variables. Initial analyses were performed on both genders; exploratory analyses were then performed evaluating each gender separately. Total N=732; 574 were included in the main analyses.

RESULTS

History of sexual molestation was significantly associated with increased odds of having transactional sex, both ever and in the past year (OR [95% CI]: 3.21 [1.26-8.18] and 4.07 [1.33, 12.52], respectively). History of rape was also significantly associated with increased odds of having had transactional sex ever and in the past year (ORs [95% CI]: 3.62 [1.38-9.52] and 3.78 [1.19, 12.01], respectively). Odds ratios in female-only analyses remained significant and were larger in magnitude compared with the main, non-stratified analyses; odds ratios in male-only analyses were non-significant and smaller in magnitude when compared with the main analyses.

CONCLUSIONS

Both CSA variables were associated with increased likelihood of transactional sex. This association appears to vary by gender. Our results suggest that policymakers for youth in foster care should consider the unique needs of young women with histories of CSA when developing programs to support healthy relationships. Health care providers should also consider adapting screening and counseling practices to reflect the increased risk of transactional sex for female youth in foster care with a history of CSA.

Association of depression with increased risk of dementia in patients with type 2 diabetes: the Diabetes and Aging Study

CONTEXT

Although depression is a risk factor for dementia in the general population, its association with dementia among patients with diabetes mellitus has not been well studied.

OBJECTIVE

To determine whether comorbid depression in patients with type 2 diabetes increases the risk of development of dementia.

DESIGN

The Diabetes and Aging Study was a cohort investigation that surveyed a racially/ethnically stratified random sample of patients with type 2 diabetes.

SETTING

A large, integrated, nonprofit managed care setting in Northern California.

PARTICIPANTS

A sample of 19,239 diabetes registry members 30 to 75 years of age.

MAIN OUTCOME MEASURES

The Patient Health Questionnaire 8, International Classification of Diseases, Ninth Revision (ICD-9) diagnoses of depression, and/or antidepressant prescriptions in the 12 months prior to baseline were used to identify prevalent cases of depression. Clinically recognized dementia was identified among subjects with no prior ICD-9 Clinical Modification (ICD-9-CM) diagnoses of dementia. To exclude the possibility that depression was a prodrome of dementia, dementia diagnoses were only based on ICD-9-CM diagnoses identified in years 3 to 5 postbaseline. The risk of dementia for patients with depression and diabetes relative to patients with diabetes alone was estimated using Cox proportional hazard regression models that adjusted for sociodemographic, clinical, and health risk factors and health use.

RESULTS

During the 3- to 5-year period, 80 of 3766 patients (2.1%) with comorbid depression and diabetes (incidence rate of 5.5 per 1000 person-years) vs 158 of 15,473 patients (1.0%) with diabetes alone (incidence rate of 2.6 per 1000 person-years) had 1 or more ICD-9-CM diagnoses of dementia. Patients with comorbid depression had a 100% increased risk of dementia during the 3 to 5 years postbaseline (adjusted hazard ratio, 2.02; 95% confidence interval, 1.73-2.35).

CONCLUSION

Depression in patients with diabetes was associated with a substantively increased risk for development of dementia compared with those with diabetes alone.

Enhancing the population impact of collaborative care interventions: mixed method development and implementation of stepped care targeting posttraumatic stress disorder and related comorbidities after acute trauma

OBJECTIVE

The objective of the study was to develop and implement a stepped collaborative care intervention targeting posttraumatic stress disorder (PTSD) and related comorbidities to enhance the population impact of early trauma-focused interventions.

METHOD

We describe the design and implementation of the Trauma Survivors Outcomes and Support study. An interdisciplinary treatment development team was composed of trauma surgical, clinical psychiatric and mental health services "change agents" who spanned the boundaries between frontline trauma center clinical care and acute care policy. Mixed method clinical epidemiologic and clinical ethnographic studies informed the development of PTSD screening and intervention procedures.

RESULTS

Two hundred seven acutely injured trauma survivors with high early PTSD symptom levels were randomized into the study. The stepped collaborative care model integrated care management (i.e., posttraumatic concern elicitation and amelioration, motivational interviewing and behavioral activation) with cognitive behavioral therapy and pharmacotherapy targeting PTSD. The model was feasibly implemented by frontline acute care masters in social work and nurse practioner providers.

CONCLUSIONS

Stepped care protocols targeting PTSD may enhance the population impact of early interventions developed for survivors of individual and mass trauma by extending the reach of collaborative care interventions to acute care medical settings and other nonspecialty posttraumatic contexts.

One-year postcollaborative depression care trial outcomes among predominantly Hispanic diabetes safety net patients

OBJECTIVE

The aim of this study was to determine sustained effectiveness in reducing depression symptoms and improving depression care 1 year following intervention completion.

METHOD

Of 387 low-income, predominantly Hispanic diabetes patients with major depression symptoms randomized to 12-month socioculturally adapted collaborative care (psychotherapy and/or antidepressants, telephone symptom monitoring/relapse prevention) or enhanced usual care, 264 patients completed 2-year follow-up. Depression symptoms (Symptom Checklist-20 [SCL-20], Patient Health Questionnaire-9 [PHQ-9]), treatment receipt, diabetes symptoms and quality of life were assessed 24 months postenrollment using intent-to-treat analyses.

RESULTS

At 24 months, more intervention patients received ongoing antidepressant treatment (38% vs. 25%, χ(2)=5.11, df=1, P=.02); sustained depression symptom improvement [SCL-20 <0.5 (adjusted odds ratio=2.06, 95% confidence interval=1.09-3.90, P=.03), SCL-20 score (adjusted mean difference -0.22, P=.001) and PHQ-9 ≥50% reduction (adjusted odds ratio=1.87, 95% confidence interval =1.05-3.32, P=.03)]. Over 2 years, improved effects were found in significant study group by time interaction for Short Form-12 mental health, Sheehan Disability Scale (SDS) functional impairment, diabetes symptoms, anxiety and socioeconomic stressors (P=.02 for SDS; P<.0001 for all others); however, group differences narrowed over time and were no longer significant at 24 months.

CONCLUSIONS

Socioculturally tailored collaborative care that included maintenance antidepressant medication, ongoing symptom monitoring and behavioral activation relapse prevention was associated with depression improvement over 24 months for predominantly Hispanic patients in primary safety net care.

Adolescents with suicidal ideation: health care use and functioning

OBJECTIVE

To improve our understanding of the clinical needs among youth with suicidal ideation (SI), we examined health care utilization patterns, functional impairment, and comorbidity among youth who endorsed SI, compared with a control group of youth without SI.

METHOD

This study included 99 youth with SI in the past year and 99 matched controls. Participants were 13- to 17-year-old youth who were enrolled in a large integrated care delivery system who had seen a provider at least one time in the past year. The 2 groups were compared with regard to health care utilization, functional impairment, and comorbid mental health symptoms, while adjusting for depression severity, lifetime diagnosis of depression or anxiety, and medical comorbidity.

RESULTS

Youth with SI had a significantly higher mean functional impairment compared with youth without SI, both at baseline (84% vs 60% "definitely impaired") and 6-month follow-up (57% vs 39% "definitely impaired"). Less than 15% in either group attended a mental health specialty visit in the 12 months before or after baseline, and under 10% received antidepressant or anxiolytic medication. Family-report data suggested that a higher proportion of youth with SI received mental health care from sources outside their health care system compared with youth without SI.

CONCLUSIONS

The presence of SI is associated with more severe functional impairment, comorbidity, and depression severity. Yet, only a minority of adolescents with SI receive mental health services, and clinical detection is low. This study suggests that better screening, recognition, and treatment of SI is needed to address the clinical impairment of youth with SI.

Depression and incident diabetic retinopathy: a prospective cohort study

OBJECTIVE

This study examined whether depression is associated with a higher incidence of diabetic retinopathy among adults with type 2 diabetes after controlling for sociodemographic factors, health risk behaviors and clinical characteristics.

METHOD

This study included 2359 patients enrolled in Pathways Epidemiologic Follow-Up Study, a prospective cohort study investigating the impact of depression in primary care patients with type 2 diabetes. The predictor of interest was baseline severity of depressive symptoms assessed with the Patient Health Questionnaire-9 (PHQ-9). The outcome was incident diabetic retinopathy. Risk of diabetic retinopathy was assessed using logistic regression, and time to incident diabetic retinopathy was examined using Cox proportional hazard models.

RESULTS

Over a 5-year follow-up period, severity of depression was associated with an increased risk of incident retinopathy [odds ratio =1.026; 95% confidence interval (CI) 1.002-1.051] as well as time to incident retinopathy (hazard ratio=1.025; 95% CI 1.009-1.041). The risk of incident diabetic retinopathy was estimated to increase by up to 15% for every significant increase in depressive symptoms severity (5-point increase on the PHQ-9 score).

CONCLUSION

Diabetic patients with comorbid depression have a significantly higher risk of developing diabetic retinopathy. Improving depression treatment in patients with diabetes could contribute to diabetic retinopathy prevention.

Evaluation of the Patient Health Questionnaire-9 Item for detecting major depression among adolescents

OBJECTIVE

The purpose of this study was to examine the performance characteristics and validity of the Patient Health Questionnaire-9 Item (PHQ-9) as a screening tool for depression among adolescents.

METHODS

The PHQ-9 was completed by 442 youth (aged 13-17 years) who were enrolled in a large health care-delivery system and participated in a study on depression outcomes. Criterion validity and performance characteristics were assessed against an independent structured mental health interview (the Child Diagnostic Interview Schedule [DISC-IV]). Construct validity was tested by examining associations between the PHQ-9 and a self-report measure of functional impairment, as well as parental reports of child psychosocial impairment and internalizing symptoms.

RESULTS

A PHQ-9 score of 11 or more had a sensitivity of 89.5% and a specificity of 77.5% for detecting youth who met the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria for major depression on the DISC-IV. Receiver-operator-curve analysis revealed that the PHQ-9 had an area under the curve of 0.88 (95% confidence interval: 0.82-0.94), and the cut point of 11 was optimal for maximizing sensitivity without loss of specificity. Increasing PHQ-9 scores were significantly correlated with increasing levels of functional impairment, as well as parental report of internalizing symptoms and psychosocial problems.

CONCLUSIONS

Although the optimal cut point is higher among adolescents, the sensitivity and specificity of the PHQ-9 are similar to those of adult populations. The brief nature and ease of scoring of this instrument make this tool an excellent choice for providers and researchers seeking to implement depression screening in primary care settings.

Effect of interventions for major depressive disorder and significant depressive symptoms in patients with diabetes mellitus: a systematic review and meta-analysis

BACKGROUND

Comorbid depression in diabetes is highly prevalent, negatively impacting well-being and diabetes control. How depression in diabetes is best treated is unknown.

OBJECTIVE

This systematic review and meta-analysis aims to establish the effectiveness of existing anti-depressant therapies in diabetes.

DATA SOURCES

PubMed, Psycinfo, Embase and Cochrane library. Study eligibility criteria, participants, interventions: randomized controlled trials (RCTs) evaluating the outcome of treatment by psychotherapy, pharmacotherapy or collaborative care of depression in persons with Type 1 and Type 2 diabetes mellitus.

STUDY APPRAISAL

risk of bias assessment; data extraction. Synthesis methods: data synthesis, random model meta analysis and publication bias analysis.

RESULTS

Meta analysis of 14 RCTs with a total of 1724 patients show that treatment is effective in terms of reduction of depressive symptoms: -0.512; 95% CI -0.633 to -0.390. The combined effect of all interventions on clinical impact is moderate, -0.370; 95% CI -0.470 to -0.271; it is large for psychotherapeutic interventions that are often combined with diabetes self management: -0.581; 95% CI -0.770 to -0.391, n=310 and moderate for pharmacological treatment: -0.467; 95% CI -0.665 to -0.270, n=281. Delivery of collaborative care, which provided a stepped care intervention with a choice of starting with psychotherapy or pharmacotherapy, to a primary care population, yielded an effect size of -0.292; 95% CI -0.429 to -0.155, n=1133; indicating the effect size that can be attained on a population scale. Pharmacotherapy and collaborative care aimed at and succeeded in the reduction of depressive symptoms but, apart from sertraline, had no effect on glycemic control.

LIMITATIONS

amongst others, the number of RCTs is small.

CONCLUSION

The treatment of depression in people with diabetes is a necessary step, but improvement of the general medical condition including glycemic control is likely to require simultaneous attention to both conditions. Further research is needed.

Laboratory-diagnosed sexually transmitted infections in former foster youth compared with peers

OBJECTIVES

The objective of this study was to evaluate the association between having resided in foster care and risk for sexually transmitted infection (STI) during young adulthood.

METHODS

Multiple regression analyses were performed by using Waves I to III of the National Longitudinal Study of Adolescent Health (1994-2002) to evaluate the association between foster care status and STI biomarkers and risk behaviors. Female (N = 7563) and male participants (N = 6759) were evaluated separately. Covariates in all models included baseline age, race, ethnicity, parental education level, parental income level, and average neighborhood household income level.

RESULTS

Female participants who had been in foster care were more likely to have Trichomonas (odds ratio [OR]: 3.23 [95% confidence interval (CI): 1.45-7.23) but not gonorrhea or chlamydia and reported increased sexual risk behaviors compared with nonfostered peers. Male participants who had been in foster care were more likely to have both gonorrhea (OR: 14.28 [95% CI: 2.07-98.28]) and chlamydia (OR: 3.07 [95% CI: 1.36-6.96]) but not Trichomonas and did not report a higher risk for most sexual risk behaviors than nonfostered peers.

CONCLUSIONS

Results suggest that individuals who have been in foster care are at increased risk for STIs during young adulthood. The pattern of exposure may differ between male and female individuals. If findings are confirmed, they suggest that health care providers who work with these youth should adjust their STI screening practices. Child welfare agencies should also consider targeted interventions to reduce STI risk in this population.

Evaluation of the PHQ-2 as a brief screen for detecting major depression among adolescents

OBJECTIVE

To examine the validity of the Patient Health Questionnaire 2 (PHQ-2), a 2-item depression-screening scale, among adolescents.

METHODS

After completing a brief depression screen, 499 youth (aged 13-17 years) who were enrolled in an integrated health care system were invited to participate in a full assessment, including a longer depression-screening scale (Patient Health Questionnaire 9-item depression screen) and a structured mental health interview (Diagnostic Interview Schedule for Children). Eighty-nine percent (n = 444) completed the assessment. Criterion validity and construct validity were tested by examining associations between the PHQ-2 and other measures of depression and functional impairment.

RESULTS

A PHQ-2 score of > or =3 had a sensitivity of 74% and specificity of 75% for detecting youth who met Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, criteria for major depression on the Diagnostic Interview Schedule for Children and a sensitivity of 96% and specificity of 82% for detecting youth who met criteria for probable major depression on the Patient Health Questionnaire 9-item depression screen. On receiver operating characteristic analysis, the PHQ-2 had an area under the curve of 0.84 (95% confidence interval: 0.75-0.92), and a cut point of 3 was optimal for maximizing sensitivity without loss of specificity for detecting major depression. Youth with a PHQ-2 score of > or =3 had significantly higher functional-impairment scores and significantly higher scores for parent-reported internalizing problems than youth with scores of <3.

CONCLUSIONS

The PHQ-2 has good sensitivity and specificity for detecting major depression. These properties, coupled with the brief nature of the instrument, make this tool promising as a first step for screening for adolescent depression in primary care.

Depressive symptoms in adolescence: the association with multiple health risk behaviors

OBJECTIVE

Although multiple studies of adolescents have examined the association of depression with individual health risk behaviors such as obesity or smoking, this is one of the few studies that examined the association between depression and multiple risk behaviors.

METHODS

A brief mail questionnaire, which screened for age, gender, weight, height, sedentary behaviors, physical activity, perception of general health, functional impairment and depressive symptoms, was completed by a sample of 2291 youth (60.7% response rate) aged 13-17 enrolled in a health care plan. A subset of youth who screened positive on the two-item depression screen and a random sample of those screening negative were approached to participate in a telephone interview with more in-depth information obtained on smoking and at-risk behaviors associated with drug and alcohol use.

RESULTS

Youth screening positive for high levels of depressive symptoms compared to those with few or no depressive symptoms were significantly more likely to meet criteria for obesity, had a poorer perception of health, spent more time on the computer, got along less well with parents and friends, had more problems completing school work and were more likely to have experimented with smoking and a wide array of behaviors associated with drug and alcohol use.

CONCLUSIONS

Because many adverse health behaviors that develop in adolescence continue into adulthood, the association of depressive symptoms with multiple risk behaviors and poor functioning suggest that early interventions are needed at an individual, school, community and primary care level.

Collaborative care management of major depression among low-income, predominantly Hispanic subjects with diabetes: a randomized controlled trial

OBJECTIVE

To determine whether evidence-based socioculturally adapted collaborative depression care improves receipt of depression care and depression and diabetes outcomes in low-income Hispanic subjects.

RESEARCH DESIGN AND METHODS

This was a randomized controlled trial of 387 diabetic patients (96.5% Hispanic) with clinically significant depression recruited from two public safety-net clinics from August 2005 to July 2007 and followed over 18 months. Intervention (INT group) included problem-solving therapy and/or antidepressant medication based on a stepped-care algorithm; first-line treatment choice; telephone treatment response, adherence, and relapse prevention follow-up over 12 months; plus systems navigation assistance. Enhanced usual care (EUC group) included standard clinic care plus patient receipt of depression educational pamphlets and a community resource list.

RESULTS

INT patients had significantly greater depression improvement (> or =50% reduction in Symptom Checklist-20 depression score from baseline; 57, 62, and 62% vs. the EUC group's 36, 42, and 44% at 6, 12, and 18 months, respectively; odds ratio 2.46-2.57; P < 0.001). Mixed-effects linear regression models showed a significant study group-by-time interaction over 18 months in diabetes symptoms; anxiety; Medical Outcomes Study Short-Form Health Survey (SF-12) emotional, physical, and pain-related functioning; Sheehan disability; financial situation; and number of social stressors (P = 0.04 for disability and SF-12 physical functioning, P < 0.001 for all others) but no study group-by-time interaction in A1C, diabetes complications, self-care management, or BMI.

CONCLUSIONS

Socioculturally adapted collaborative depression care improved depression, functional outcomes, and receipt of depression treatment in predominantly Hispanic patients in safety-net clinics.

Major depression: the importance of clinical characteristics and treatment response to prognosis

BACKGROUND

This article analyzed data from the intervention arm of a large treatment trial to demonstrate the importance of clinical severity, course, comorbidity, and treatment response in patient prognosis.

METHODS

This is a secondary analysis of data from a large primary care-based geriatric depression treatment trial that analyzes outcomes from the measurement-based stepped-care intervention arm (N=871 patients) to determine: whether increasing severity levels of depression at baseline were linked with other factors associated with poor depression outcomes such as double depression, anxiety, medical disorders, and high levels of neuroticism and pain; and whether patients with increasing levels of depressive severity would have more intervention visits and treatment trials based on a stepped-care algorithm, but would be less likely to reach remission and have a greater likelihood of re-emerging depression in the year after intervention.

RESULTS

Increasing levels of depression severity were a robust predictor of lack of remission and were associated with other clinical variables that have been associated with lack of remission in earlier studies such as double depression, anxiety, medical comorbidity, high neuroticism levels, and chronic pain. Patients with higher levels of severity received significantly more intervention visits, more months of antidepressant treatment and more antidepressant trials, but had fewer depression-free days during the 12-month intervention and in the postintervention year.

CONCLUSION

Patients with higher levels of depression severity had worse clinical outcomes despite receiving greater intensity of treatment. A new classification of depression is proposed based on clinical severity, course of illness and treatment experience.

Depression and diabetes: factors associated with major depression at five-year follow-up

BACKGROUND

In patients with diabetes, comorbid depression has been shown to be associated with increased medical symptom burden, additional functional impairment, poor self-care, increased risk of macrovascular and microvascular complications, higher medical costs, and greater mortality.

OBJECTIVE

The authors performed a longitudinal observation to assess the pathway between diabetes complications and subsequent depression.

METHOD

In a prospective study of primary-care patients with diabetes (N=2,759), the authors determined, from automated data and chart review, whether macrovascular or microvascular events or coronary, cerebrovascular, or peripheral vascular procedures during follow-up were associated with meeting criteria for major depression at 5-year follow-up.

RESULTS

After controlling for baseline severity of depression symptoms and history of depression, having one-or-more coronary procedures during follow-up, and baseline severity of diabetes symptoms were strong predictors of having major depression at 5-year follow-up.

CONCLUSION

The risk of major depression among persons with diabetes is increased by previous depression history, baseline diabetes symptoms, and having had cardiovascular procedures.

Depression and advanced complications of diabetes: a prospective cohort study

OBJECTIVE

To prospectively examine the association of depression with risks for advanced macrovascular and microvascular complications among patients with type 2 diabetes.

RESEARCH DESIGN AND METHODS

A longitudinal cohort of 4,623 primary care patients with type 2 diabetes was enrolled in 2000-2002 and followed through 2005-2007. Advanced microvascular complications included blindness, end-stage renal disease, amputations, and renal failure deaths. Advanced macrovascular complications included myocardial infarction, stroke, cardiovascular procedures, and deaths. Medical record review, ICD-9 diagnostic and procedural codes, and death certificate data were used to ascertain outcomes in the 5-year follow-up. Proportional hazard models analyzed the association between baseline depression and risks of adverse outcomes.

RESULTS

After adjustment for prior complications and demographic, clinical, and diabetes self-care variables, major depression was associated with significantly higher risks of adverse microvascular outcomes (hazard ratio 1.36 [95% CI 1.05-1.75]) and adverse macrovascular outcomes (1.24 [1.0-1.54]).

CONCLUSIONS

Among people with type 2 diabetes, major depression is associated with an increased risk of clinically significant microvascular and macrovascular complications over the ensuing 5 years, even after adjusting for diabetes severity and self-care activities. Clinical and public health significance of these findings rises as the incidence of type 2 diabetes soars. Further research is needed to clarify the underlying mechanisms for this association and to test interventions to reduce the risk of diabetes complications among patients with comorbid depression.