Prevalence of depressive symptoms in patients with chronic obstructive pulmonary disease: a systematic review, meta-analysis and meta-regression

Objective

This meta-analysis was aimed to evaluate the differences in aggregated prevalence of depressive symptoms among people with chronic obstructive pulmonary disease (COPD) as compared to controls without COPD and to determine underlying moderators to explain potential heterogeneity of prevalence.

Methods

A meta-analysis of published work was performed using the random effect model. A total of eight studies were identified. We calculated the differences in prevalence proportion of depressive symptoms in patients with COPD versus controls. Meta-regression and subgroup analysis were performed to identify factors that may contribute to heterogeneity.

Results

The prevalence proportion of depressive symptoms was found to be significantly higher (pooled odds ratio: 2.81; 95% CI: 1.69-4.66) among 39587 individuals with COPD as compared to 39,431 controls (24.6%, 95% CI: 20.0-28.6% vs. 11.7%, 95% CI: 9-15.1%). Meta-regression was conducted to account for the heterogeneity of the prevalence proportion, but moderators like mean age, gender, mean FEV₁ and proportion of current smokers among COPD patients were nonsignificant and could not explain heterogeneity in prevalence of depressive symptoms. Subgroup analyses showed no significant differences based on different methods of assessment of depressive symptoms and countries sampled.

Conclusion

This meta-analytical review identified higher prevalence of depressive symptoms among COPD patients, and meta-regression showed that demographic and clinical factors were not the determinants of heterogeneity in prevalence of depressive symptoms.     

Increased depressive symptoms in menopausal age women with bipolar disorder: Age and gender comparison

Objective

Emerging data suggest the menopausal transition may be a time of increased risk for depression. This study examines the course of bipolar disorder focusing on depressive symptoms in menopausal transition age women, compared to similar-aged men as well as younger adult women and men.

Methods

Outpatients with bipolar disorder were assessed with the systematic treatment enhancement program for bipolar disorder (STEP-BD) affective disorders evaluation and longitudinally monitored during naturalistic treatment with the STEP-BD clinical monitoring form. Clinical status (syndromal/subsyndromal depressive symptoms, syndromal/subsyndromal elevation or mixed symptoms, and euthymia) was compared between menopausal transition age women (n = 47) and pooled similar-aged men (n = 30) 45-55 years old, younger women (n = 48) and men (n = 39) 30-40 years old.

Results

Subjects included 164 bipolar disorder patients (67 type I, 82 type II, and 15 not otherwise specified), 34% were rapid cycling and 58% women. Bipolar II disorder/bipolar NOS was more common in women. Monitoring averaged 30 ± 22 months, with an average of 0.9 ± 0.5 clinic visits/month. Menopausal age women had a significantly greater proportion of visits with depressive symptoms (p < 0.05), significantly fewer euthymic visits (p < 0.05) and no difference in proportion of visits with elevated/mixed symptoms compared to pooled comparison group.

Conclusions

Menopausal transition age women with bipolar disorder experience a greater proportion of clinic visits with depressive symptoms compared to similarly aged men, and younger women and men with bipolar disorder. Further systematic assessment on the influence of the menopausal transition and reproductive hormones upon mood is needed to better inform clinical practice in treating women with bipolar disorder.     

Depressive symptoms predict long-term mortality after liver transplantation

Objective

Depressive symptoms are common after liver transplantation (LT). We studied whether depressive symptoms affect long-term survival after LT.

Methods

In a prospective cohort study, 134 liver transplant patients were assessed for depressive symptoms using the Beck Depression Inventory—short form (BDI), focusing on the 3 months post-LT score and on the score change from the waiting list period. They were followed up for long-term survival. The median duration of the follow-up period was 43 months post-LT. None of the 134 patients was lost to follow-up for survival.

Results

A total of 33.6% of the LT patients had mild to moderate depressive symptoms 3 months post-LT. Eighteen (13.4%) patients died during the follow-up. Using Cox proportional hazards analysis, depressive symptoms were significantly associated with mortality (hazard ratio [HR] 1.22, 95% confidence interval (CI) 1.07-1.40, P<.003), one more point in the BDI score being associated with a 17% increase in mortality risk. Other predictive factors of mortality were older age and hepatitis C virus with recurrence 3 months post-LT. Similarly, an increase in depressive symptoms between the waiting list and 3 months post-LT periods predicted mortality (HR 1.18, 95% CI 1.01-1.38, P=.03), especially for patients without depressive symptoms on waiting list (HR 1.56, 95% CI 1.16-2.12, P=.004).

Conclusion

Depressive symptoms after LT and an increase in depressive symptoms between the waiting list and post-LT are associated with an increased risk of long-term mortality. Interventions that could reduce depressive symptoms could potentially decrease long-term mortality after LT.     

Childhood predictors of recurrent abdominal pain in adolescence: A 13-year population-based prospective study

Objective

To investigate maternal and child emotional symptoms, physical health problems, and negative life events measured at children's age 18 months and 12 years as potential predictors for self-reported recurrent abdominal pain (RAP) in adolescents (14 years).

Methods

A population-based prospective study conducted at child health clinics (preventive health care) in Norway followed a cohort of 916 mothers with children from children's age 18 months until adolescence. Child self-report was obtained from 12 years of age. Outcome measure was adolescent self-reported RAP.

Results

Of 456 adolescents, 58 (13%) reported RAP. Of these, 36 (62%) were girls. By multivariate analyses, the following maternal factors predicted RAP in adolescence: psychological distress at children's age 18 months (OR, 2.5; 95% CI, 1.3-4.8) and a maternal history of psychological distress at children's age 12 years (OR, 3.2; 95% CI, 1.7-6.2). The following child factors measured at age 12 years predicted RAP in adolescence: abdominal (OR, 2.5; 95% CI, 1.3-4.9) and extraintestinal pain (OR, 2.3; 95% CI, 1.2-4.4) by maternal report, self-reported frequent extraintestinal pain (OR, 2.9; 95% CI, 1.4-5.9), and self-reported depressive symptoms (OR, 2.4; 95% CI, 1.1-5.1). Negative life events and physical health in mothers and toddlers did not predict RAP.

Conclusions

This is the first cohort study that finds maternal psychological distress in early childhood to predict RAP in their offspring 13 years later. Our results support that maternal psychological distress and preadolescent children's depressive and somatic symptoms may play a role in the development of RAP.     

Depressive symptoms in first episode schizophrenia spectrum disorder

Background

Depressive symptoms in ‘non-affective’ first episode schizophrenia spectrum disorders (FES) are common, but poorly understood, resulting in a range of conceptual and clinical management issues. This study had three aims: (i) to determine the prevalence of moderate to severe depressive symptoms (defined as a Clinical Global Impressions Scale-Bipolar Disorder (CGI-BP depression) score > 3) in a large representative sample of FES patients; (ii) to compare the clinical and functional characteristics of FES patients with and without these depressive symptoms at service entry; and (iii) to compare the characteristics of FES patients with and without persistent depressive symptoms.

Methods

Medical file audit methodology was employed to collect information on 405 patients with FES treated at the Early Psychosis Prevention and Intervention Centre (EPPIC), Melbourne, Australia.

Results

26.2% (n = 106) of the patients had moderate to severe depression at service entry. At service entry and at discharge, those with depressive symptoms had greater insight into their illness but did not differ from those without depressive symptoms in terms of severity of overall psychopathology. Substance use was significantly less common in those with depressive symptoms at service entry and at discharge. Of those who were depressed at baseline, 14.2% (n = 15) continued to have moderate to severe depressive symptoms at discharge.

Discussion

Depressive symptoms are common in patients with FES. Understanding the nature and characteristics of depression in FES has important clinical implications for both early intervention and treatment.     

Difficult delivery and some selected factors as predictors of early postpartum psychological symptoms among Nigerian women

Objectives

The objectives of this study were to compare depressive and anxiety symptoms between Nigerian women with a difficult delivery (cesarean or instrumental) and those with an unassisted vaginal delivery during the puerperium and to highlight other factors of predictive value for symptoms.

Methods

Women (n=83) who had a difficult delivery (index group) were compared with matched control subjects (n=83) who had an unassisted vaginal delivery. They were all evaluated using the State-Trait Anxiety Inventory (state form) and Zung's Self-Rating Depression Scale. Information was also collected on their sociodemographic characteristics, obstetric factors, and general health problems.

Results

After delivery, 19 subjects from the index group (22.9%) obtained scores higher than the threshold for significant depressive symptoms, as compared with 13 subjects from the control group (15.7%). Six weeks later, the rates were 10 (12.0%) and 8 (9.6%), respectively. The mean anxiety and depressive symptom scores for the difficulty delivery group were significantly higher at birth. Although both groups improved over time, the differences were still significant after 6 weeks. Using stepwise regression analysis, we observed cesarean delivery and polygamy to predict depressive symptoms after birth but not after 6 weeks. Previous induced abortions were also observed to predict anxiety and depressive symptoms throughout. Depressive symptoms at 6 weeks were predicted by depressive symptoms at birth and by anxiety symptoms at 6 weeks. The same pattern was observed for anxiety symptoms.

Conclusion

Although difficult delivery was associated with higher levels of symptoms, it was not predictive of postpartum depressive and anxiety symptoms at 6 weeks. Also, of other possible risk factors studied, only illegal abortions were observed to be important in the study population during the puerperium.     

Physical health status assessed during hospitalization for acute coronary syndrome predicts mortality 12 months later

Objective

Self-report measures of health status predict mortality in several groups of patients with cardiovascular disease, although overlap with symptoms of depression may reduce or eliminate this relationship. The association between self-reported health status and mortality has not been examined in patients hospitalized for acute coronary syndrome (ACS). The objective was to investigate whether the Physical Component Summary (PCS) and Mental Component Summary (MCS) scores of the SF-12 predicted 12-month all-cause mortality after controlling for cardiac risk factors and symptoms of depression.

Methods

The SF-12 and Beck Depression Inventory were administered 2-5 days after admission to 800 ACS patients from 12 coronary care units. Logistic regression was used to assess the relationship of the PCS and MCS with mortality 12 months later, controlling for age, sex, cardiac diagnosis (acute myocardial infarction vs. unstable angina), Killip class, history of myocardial infarction, and in-hospital depressive symptoms.

Results

Lower scores on the SF-12 PCS (worse health) were associated with a significantly higher risk of mortality [odds ratio (OR)=0.94, 95% confidence interval (CI)=0.92-0.97, P<.001]. MCS scores failed to reach significance (OR=0.98, CI=0.95-1.00, P=.053). The PCS significantly predicted mortality even after controlling for other cardiac risk factors and depressive symptoms (OR=0.96, CI=0.93-0.99, P=.008), equivalent to a 34% increase in risk per 10-point (1 SD) decrement in PCS scores.

Conclusion

The brief SF-12 PCS presents an attractive option for improving risk stratification among hospitalized ACS patients.     

Anxiety, independent of depressive symptoms, is associated with in-hospital cardiac complications after acute myocardial infarction

Objective

Post-myocardial infarction (MI) anxiety, independent of demographic and medical variables, has been linked to in-hospital cardiac complications in prior studies, but such studies have not included a concomitant assessment of depressive symptoms. The aim of this exploratory study was to determine whether post-MI anxiety was associated with in-hospital cardiac complications, independent of depressive symptoms.

Methods

Subjects within 72 hours of acute MI (n=110) were prospectively assessed for anxiety [using the Beck Anxiety Inventory (BAI)] and depressive symptoms (using the Beck Depression Inventory-II and structured interview diagnoses of major depressive disorder). Individual in-hospital complications and pooled serious cardiac complications (defined as recurrent ischemia, reinfarction, congestive heart failure, and ventricular arrhythmia requiring intervention) were recorded via chart review.

Results

On hierarchical multiple logistic regression analysis that accounted for demographic variables, cardiac illness, and depressive symptoms, post-MI anxiety was significantly associated with pooled serious in-hospital cardiac complications (P=.003). In addition, when the anxiety measure was limited to only the psychological symptoms of anxiety (“BAI-P”), post-MI anxiety remained an independent predictor of cardiac complications (P=.015).

Conclusions

These findings suggest that the association of post-MI anxiety with in-hospital cardiac complications exists above and beyond the effects of depression. Larger studies are needed to confirm these findings, and treatment studies are needed to determine the impact of anxiety treatment on in-hospital cardiac outcomes.     

Social phobia and depression: Prevalence and comorbidity

Background

Social phobia may seriously impair the functioning of affected individuals. It is frequently associated with other mental disorders.

Aims

To estimate the co-occurrence of social phobia with major depressive disorder (MDD) and to analyze their interaction.

Method

Subjects were 18,980 individuals, aged 15 years or older, representative of the general population of the United Kingdom, Germany, Italy, Spain and Portugal, who were interviewed by telephone. DSM-IV diagnoses were made with the Sleep-EVAL system.

Results

The point prevalence for social phobia was 4.4% (95% confidence interval: 4.1-4.7%) of the sample. It was higher in women (odds ratio: 1.6) and decreased with age. MDDs were found in 19.5% of participants with social phobia. Co-occurrence of another anxiety disorder was high and increased when a MDD was present (65.2%). The odds of developing a major depressive episode 2 years after the appearance of the social phobia was of 5.74.

Conclusions

Social phobia is highly prevalent in the general population. It increases the risk of developing a MDD and has a high comorbidity with other mental disorders. Social phobia is often present in the course of depression, more obviously during remission period of MDD. Physicians must explore and treat more systematically this frequent pathology.     

Prospective associations of early-onset Axis I disorders with developing eating disorders

Objective

The purpose of this study is to analyze the developmental relationships of adolescent-onset Axis I mental disorders and eating disorders (EDs).

Method

One thousand three hundred eighteen adolescent twins born from 1983 to 1987 completed a professionally administered semistructured psychiatric interview at the age of 14 years and a questionnaire follow-up at the age of 17.5 years.

Results

Eating disorders at the age of 17.5 years were significantly predicted by major depressive disorder (odds ratio, 5.9; 95% confidence interval, 2.6-15.3) and generalized anxiety disorder (GAD) (odds ratio, 4.7; 95% confidence interval, 1.8-15.6) at the age of 14 years, when baseline EDs were excluded. Early-onset major depressive disorder in combination with GAD increased the likelihood of developing EDs compared with either mood or anxiety disorders alone. Similar risks and trends were evident in within-family analyses of twin pairs discordant for baseline predictors and ED outcome.

Conclusions

Depressive disorder and GAD that manifest at that age of 14 years predict future EDs. Analysis of discordant twins suggested that early-onset depressive disorder and GAD prospectively relate to EDs in adolescence, even after familial factors are taken into account.     

Depressive symptoms in relation to physical functioning in pulmonary hypertension

Objective

To investigate the association between depressive symptoms and physical functioning in pulmonary hypertension (PH) patients.

Methods

Fifty-two patients diagnosed with precapillary or postcapillary PH completed self-report questionnaires of depressive symptoms and physical functioning. Cardiac catheterization reports of patients were reviewed for hemodynamic variables.

Results

Physical functioning was significantly associated with depressive symptoms on bivariate analysis. On multivariate analysis, after controlling for demographic and hemodynamic variables, depressive symptoms accounted for 9% of variance in physical functioning.

Conclusion

The association of depressive symptoms with decreased physical functioning in PH patients indicates the need for longitudinal research regarding the possible effect of depression on disease outcomes in this population.     

The relationship between depressive symptoms and subjective well-being in newly admitted patients with schizophrenia

Background

Depressive symptoms are common in schizophrenia and are considered core features of the disorder. The purpose of the present study was to examine the relationship between depressive symptoms and subjective well-being in newly admitted patients with schizophrenia.

Methods

Eighty newly admitted patients were comprehensively evaluated for subjective well-being, schizophrenic symptoms, and depressive symptoms using the Subjective Well-Being Under Neuroleptics Scale (SWN), the Positive and Negative Syndrome Scale (PANSS), and the Beck Depression Inventory. Correlation coefficients were obtained between depressive symptoms and subjective well-being while controlling for the influence of the severity of psychotic symptoms, extrapyramidal side effect, and subjective attitude toward antipsychotics, as assessed by the PANSS, the Drug-Induced Extrapyramidal Symptoms Scale, and the Drug Attitude Inventory, respectively.

Results

The SWN score had a significant negative correlation with the PANSS depression factor score (P < .001). Correlation analysis also revealed a significant negative correlation between the SWN score and the Beck Depression Inventory score (P < .001).

Conclusions

The results of our study suggest that depressive symptoms are significantly associated with a low subjective well-being in newly admitted patients with schizophrenia and that the relationship is significant even after controlling for the influence of potential confounding variables. Detection and appropriate management of depressive symptoms in schizophrenic patients may affect their perceptions of their own well-being.     

Exposure to trauma and the clinical presentation of first-episode psychosis in South Africa

Objective

To evaluate the relationship between a history of traumatic experiences and the clinical features of first-episode psychosis (FEP).

Method

We tested associations between trauma variables and duration of untreated psychosis (DUP), age of onset (AO), PANSS-rated positive and negative symptoms and depressive symptoms (Calgary Depression Scale) in a sample of 54 FEP patients.

Results

Mean DUP was 34.4 weeks, while mean AO was 24.7 years. Witnessing a seriously violent assault (49%) was associated with high positive symptoms (p = 0.002), while a significant personal experience of racism and discrimination (39%) was associated with high depressive (p = 0.042) symptoms. Previous sexual assault (44% of females) was associated with high positive (p = 0.028) and negative (p = 0.035) symptoms with a trend association with depressive symptoms (p = 0.092).

Conclusion

Our findings suggest that previous traumatic experience is associated with positive and affective symptoms in FEP.     

The relationship between sensory and sympathetic nervous system changes and posttraumatic stress reaction following whiplash injury--a prospective study

Objective

To investigate differences in sensory and sympathetic nervous system (SNS) function between whiplash-injured persons with and without a posttraumatic stress reaction (PTSR). To explore associations between sensory, SNS function, and persistent PTSR at 6 months postinjury.

Methods

Seventy-six acutely (<1 month) whiplash-injured persons (10 with PTSR persisting to 6 months postinjury, 14 with early PTSR that resolved, and 52 with no PTSR) were prospectively investigated.

Results

Those with persistent PTSR showed sensory hypersensitivity and impaired peripheral vasoconstriction compared to those whose PTSR resolved and those without PTSR (P<.05). The early presence of sensory hypersensitivity was associated with PTSR at 6 months, but this relationship was mediated by pain and disability levels. Impaired vasoconstriction and higher pain and disability levels were associated with PTSR at 6 months.

Conclusion

Sensory disturbances following whiplash injury are associated with persistent PTSR but may be mediated by levels of pain and disability.     

Patients’ subjective initial response and the outcome of inpatient and day hospital treatment

Objective

This study aimed to establish whether psychiatric patients’ subjective initial response (SIR) to hospital and day hospital treatment predicts outcomes over a one-year follow-up period.

Method

We analysed data from 765 patients who were randomised to acute psychiatric treatment in a hospital or day hospital. SIR was assessed on day 3 after admission. Outcomes were psychiatric symptom levels and social disability at discharge, and at 3 and 12 months after discharge.

Results

After controlling for socio-demographic and clinical characteristics, a more positive SIR was significantly associated with lower symptom levels at discharge and 3 months after discharge and lower social disability at 3 months and 12 months after discharge.

Conclusion

SIR can predict outcomes of complex interventions over a one-year period. Patients’ initial views of acute hospital and day treatment should be elicited and considered as important.     

Association between the Malnutrition-Inflammation Score and depressive symptoms in kidney transplanted patients

Objective

Depressive symptoms and the Malnutrition-Inflammation Complex Syndrome (MICS) are prevalent in patients with chronic kidney disease. The complex relationship between MICS and depression has never been studied in kidney transplanted (Tx) patients. Here we evaluate the association between the Malnutrition-Inflammation Score (MIS) (Kalantar score) and depressive symptoms in Tx patients.

Methods

Cross-sectional data of 973 prevalent Tx patients were analyzed. Sociodemographic and anthropometric characteristics and clinical and laboratory data were collected, and serum levels of inflammatory markers [C-reactive protein (CRP), interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α)] were measured. The Center for Epidemiologic Studies-Depression (CES-D) scale, the MIS and the Charlson Comorbidity Index (CCI) were computed. We used linear regression analysis to examine whether the relationship between MIS and CES-D score is independent from sociodemographic and laboratory parameters.

Results

The CES-D score, corrected for age, gender and estimated glomerular filtration rate weakly but significantly correlated with serum IL-6 and the CCI (0.124 and 0.103, respectively; P<.05 for both) and marginally significantly with CRP (0.06; P=.06). We found a moderate correlation between CES-D score and MIS (0.262; P<.001). In a multivariable linear regression model, the MIS was independently associated with the CES-D score (B=0.110; P<.001).

Conclusions

The MIS was significantly associated with depressive symptoms after adjusting for important covariables in patients after renal transplantation.     

Are illness perceptions about coronary artery disease predictive of depression and quality of life outcomes?

Objective

Depression occurs commonly in coronary artery disease (CAD) and is associated with substantial disability. Modifiable cognitive determinants of depression in this population have not been identified. We investigated the impact of potentially modifiable illness beliefs about CAD on depressive symptomatology. We also examined the association between these beliefs and health-related quality of life (HRQOL) and socio-demographic variations in illness beliefs.

Methods

A prospective study of 193 recently hospitalized CAD patients was conducted. Data were collected from medical records and by self-report 3 and 9 months post-discharge. Socio-demographic differences were analysed with independent sample t-tests. Predictive models were tested in a series of hierarchical linear regression equations that controlled for known clinical, psychosocial, and demographic correlates of outcome.

Results

Negative illness beliefs, particularly those associated with the consequences of CAD, were significantly predictive of higher levels of depressive symptomatology at 3 and 9 months. Positive illness perceptions were significantly associated with better HRQOL outcomes. Older and less socially advantaged patients demonstrated more negative illness beliefs.

Conclusions

Illness beliefs are significantly associated with depressive symptomatology and HRQOL in CAD patients. These beliefs can be easily identified and constitute a meaningful and clinically accessible avenue for improving psychological morbidity and HRQOL in CAD patients. Older and more socially vulnerable patients may require heightened monitoring of their illness beliefs. Research needs to translate these and other predictive findings into interventions.     

Course and prediction of somatoform disorder and medically unexplained symptoms in primary care

Theory/objective

Somatoform disorder (SFD) is associated with considerable psychosocial impairment. However, only a few studies have dealt with the course of this clinical subgroup. Therefore, the objective was to identify predictors for the various courses of SFD and medically unexplained symptoms (MUS).

Method

We screened 620 consecutive patients in primary care using the Patient Health Questionnaire (PHQ-15). Afterwards, 308 patients were studied in more detail using a diagnostic interview and a set of questionnaires. One year later, we were able to interview 277 participants a second time.

Result

After 1 year, 48.8% of the respondents had a remitted SFD. The following variables proved to be significant predictors of MUS: current depressive episode, negative life events, number of MUS at baseline, attributional style, autonomic sensations and catastrophizing cognitions. The course of SFD could be predicted through current depressive or anxiety disorder, negative life events, functional disability and attributional style.

Conclusion

Somatoform disorder has a favorable course. The predictors of the courses of SFD and MUS we found can be integrated into previous explanatory models. The coping with MUS or SFD can be seen as a mediating factor.     

Behavioral and psychological symptoms of dementia in a pilot psychogeriatric unit: management and outcomes

Background

Behavioral and psychological symptoms in dementia (BPSD) are a major concern. The French government gave a consensual definition of reinforced intermediate-term care units for BPSD within the project “Plan Alzheimer 2008/2012”.

Objective

Our aim was to report one of the first experiences of this unit in France.

Results

Fifty-two patients (38 females, 14 males) were included, mean age 82.07 ± 7.84 (73-97). About 80% of patients were improved and there was a high discharge rate to home of about 30%. Night-time behaviors, aberrant motor behaviors and agitation were the most frequent symptoms.

Conclusion

Our study confirms that demented elderly patients greatly benefit from a specific BPSD care unit in agreement with the objective of Plan Alzheimer 2008/2012.