Chronic bronchitis, cigarette smoking, and the subsequent onset of depression and anxiety: results from a prospective population-based cohort study

Association between preoperative anxiety states and postoperative complications in patients with esophageal cancer and COPD: a retrospective cohort study

BACKGROUND

Esophageal cancer brings emotional changes, especially anxiety to patients. Co-existing anxiety makes the surgery difficult and may cause complications. This study aims to evaluate effects of anxiety in postoperative complications of esophageal cancer patients with chronic obstructive pulmonary disease (COPD).

METHODS

Patients with esophageal cancer and co-existing COPD underwent tumor excision. Anxiety was measured using Hospital Anxiety and Depression Scale (HAD) before surgery. Clavien-Dindo criteria were used to grade surgical complications. A multiple regression model was used to analyze the relationship between anxiety and postoperative complications. The chi-square test was used to compare the differences in various types of complications between the anxiety group and the non-anxiety group. A multinomial logistic regression model was used to analyze the influencing factors of mild and severe complications.

RESULTS

This study included a total of 270 eligible patients, of which 20.7% had anxiety symptoms and 56.6% experienced postoperative complications. After evaluation by univariate analysis and multivariate logistic regression models, the risk of developing complications in anxious patients was 4.1 times than non-anxious patients. Anxious patients were more likely to develop pneumonia, pyloric obstruction, and arrhythmia. The presence of anxiety, surgical method, higher body mass index (BMI), and lower preoperative oxygen pressure may increase the incidence of minor complications. The use of surgical methods, higher COPD assessment test (CAT) scores, and higher BMI may increase the incidence of major complications, while anxiety does not affect the occurrence of major complications (P = 0.054).

CONCLUSION

Preoperative anxiety is associated with postoperative complications in esophageal cancer patients with co-existing COPD. Anxiety may increase the incidence of postoperative complications, especially minor complications in patient with COPD and esophageal cancer.

Clinical and economic burden of anxiety/depression among older adult COPD patients: evidence from the COPD-AD China Registry study

Background

Anxiety and depression are common in patients with chronic obstructive pulmonary disease (COPD), especially older adult patients. This can complicate the disease progression and lead to increased clinical and economic burden. We sought to investigate the clinical and economic burdens associated with the presence of anxious and/or depressive symptoms among older adult COPD patients.

Methods

We screened 579 patients aged over 60 years and diagnosed with COPD via a lung function test following the 2017 Global Initiative Chronic Obstructive Lung Disease (GOLD) guidelines. Anxiety and depression were measured using the Hospital Anxiety and Depression Scale (HADS) through face-to-face interviews at admission. Follow-up was conducted by telephone calls at 6, 12, 18, 24, and 36 months after discharge to assess clinical and economic burden. COPD-anxiety and/or depression patients were matched to patients without anxiety and depression (COPD-only) using propensity scores. Multivariate regression models were used to compare clinical and economic burden between COPD-anxiety and/or depression and COPD-only groups.

Results

Compared with COPD-only patients, COPD patients complicated with anxiety and/or depression had increased clinical burden, including higher COPD-related outpatient visits, COPD-related hospitalizations, and length of COPD-related hospitalizations (p < 0.001). Moreover, they also had an increased economic burden, including higher annual total healthcare costs, medical costs, and pharmacy costs (p < 0.001).

Conclusion

Older adult COPD patients with anxiety or depression had significantly higher clinical and economic burdens than patients without these comorbidities. These findings deserve further exploration and may be useful for the formulation of relevant healthcare policies.

The Metacognitions about Binge Eating Questionnaire: Investigation of the association between specific metacognitions and Binge Eating Disorder

Literature suggested that metacognitions are involved in eating problems and may be relevant to the understanding of Binge Eating Disorder (BED). The goal of the current studies was to develop the first self-report instrument on metacognitions about binge eating. In Study 1, a community sample completed the Metacognitions about Binge Eating Questionnaire (MBEQ); an Exploratory Factor Analysis (EFA) was performed. In study 2, a community sample completed the MBEQ and measures assessing severity of binge eating, irrational food beliefs, anxiety, depression, impulsiveness. A Confirmatory Factor Analysis (CFA) was performed. Concurrent and incremental validity were assessed. In study 3, a clinical sample of participants with a diagnosis of BED completed the MBEQ and other measures. Bivariate correlational analysis and hierarchical linear regression were performed. Participants from the general population and participants with a diagnosis of BED were compared. EFA and CFA supported a two-factor solution consisting of positive and negative metacognitions about binge eating. Concurrent and incremental validity were acceptable. The metacognitions factors correlated positively with anxiety, depression, irrational food beliefs, impulsiveness in the community sample, and anxiety, irrational food beliefs, impulsiveness in clinical sample. The metacognitions factors contributed to the prediction of BEDs symptoms, in community and clinical samples, over and above age, gender, impulsiveness, anxiety, depression, irrational food beliefs. The MBEQ possesses good psychometric properties and appears a reliable and valid measure of positive and negative metacognitions about binge eating. Metacognitions about binge eating could be a therapeutic target to reduce the severity of binge eating episodes.

Attitudes, confidence, barriers and current practice of managing depression in patients with COPD in Saudi Arabia: a national cross-sectional survey

OBJECTIVE

To investigate physicians' perceptions and current practices of identifying and managing depression in patients with chronic obstructive pulmonary disease (COPD).

DESIGN

A cross-sectional online survey was employed between March and September 2022.

SETTINGS

Saudi Arabia.

PARTICIPANTS

1015 physicians, including general practitioners and family, internal and pulmonary medicine specialists.

PRIMARY OUTCOME MEASURES

Physicians' perceptions, confidence, practices and barriers to recognising and managing depression in patients with COPD.

RESULTS

A total of 1015 physicians completed to the online survey. Only 31% of study participants received adequate training for managing depression. While 60% of physicians reported that depression interferes with self-management and worsens COPD symptoms, less than 50% viewed the importance of regular screening for depression. Only 414 (41%) physicians aim to identify depression. Of whom, 29% use depression screening tools, and 38% feel confident in discussing patients' feelings. Having adequate training to manage depression (OR: 2.89; 95% CI: 2.02 to 3.81; p<0.001) and more years of experience (OR: 1.25; 95% CI: 1.08 to 1.45; p=0.002) were associated with the intention to detect depression in COPD patients. The most common barriers linked to recognising depression are poor training (54%), absence of standard procedures (54%) and limited knowledge about depression (53%).

CONCLUSION

The prevalence of identifying and confidently managing depression in patients with COPD is suboptimal, owing to poor training, the absence of a standardised protocol and inadequate knowledge. Psychiatric training should be supported in addition to adopting a systematic approach to detect depression in clinical practice.

Association between depressive symptoms and lung function in the United States adults without pulmonary diseases: A cross-sectional study from NHANES

BACKGROUND

Depression is a severe and common mental disorder. The association between depressive symptoms and lung function remains unclear. To determine whether depressive symptoms are associated with lung function in U.S. adults without pulmonary diseases.

METHODS

A cross-sectional study of National Health and Nutrition Examination Survey (NHANES) data from 2007 to 2012 were used to estimate the relationship between depressive symptoms and lung function. Depressive symptoms were determined by a participant's score on the Patient Health Questionnaire-9. Forced Expiratory Volume 1st Second (FEV1) Forced Vital Capacity (FVC) were determined by the spirometry. Weighted multivariate linear regression was used to analyze this relationship and subgroup analyses were performed.

RESULTS

Of 8027 participants, 576 (7.18 %) participants with depression. Depression group had significant lower FEV1 and FVC than non-depression group. After adjustment for all covariates, there was a significant negative association between depressive symptoms and FVC (β -4.84, 95 % CI -9.10 to -0.57), especially in non-Hispanic White people (β -9.03, 95 % CI -14.38 to -3.69). There was no independent association between depressive symptoms and FEV1 in all participants, whereas the association was significant in non-Hispanic White people (β -4.91, 95 % CI -9.50 to -0.32).

CONCLUSIONS

High depressive symptoms were independently associated with decline of FVC among U.S. adults without pulmonary diseases, especially in non-Hispanic White people. In addition, although it was not independently associated with FEV1 in all participants, depressive symptom score was also negatively associated with FEV1 in non-Hispanic White people.

Depressive symptoms and chronic lung disease in middle-aged and older Chinese adults: Prospective bidirectional association and mediation analysis

BACKGROUND

We investigated the prospective bidirectional association between depressive symptoms and chronic lung disease (CLD) and explored biologically and behaviorally relevant mediators in this bidirectional association among Chinese middle-aged and older population in the China Health and Retirement Longitudinal Study.

METHODS

Multivariable-adjusted Cox proportional hazard models were used to examine baseline depressive symptoms in relation to incident CLD risk among 12,546 adults and examine CLD condition in association with incidence of elevated depressive symptoms among 6,929 participants from 2011 to 2018. Elevated depressive symptoms were assessed with the 10-item Center for Epidemiologic Studies Depression scale and CLD was determined by self-reported physician diagnosis. Causal mediation analysis was performed to examine the direct and indirect effects of a priori selected nine blood biomarkers and four lifestyle factors in the bidirectional association.

RESULTS

Elevated depressive symptoms significantly increased CLD risk by 68% (HR=1.68, 95%CI=1.46-1.93) after a mean follow-up of 5.9 years and the strong positive association was consistently shown in almost all the subgroups. Having positive CLD status at baseline was associated with 17% increased risk of developing elevated depressive symptoms (HR=1.17, 95%CI=1.01-1.35) during an average of 4.6 years follow-up period. Significant inflammatory, metabolic or pulmonary function related mediators were not identified.

LIMITATIONS

Inadequate follow-up time and limited mediator variable information may reduce chance of identifying significant mediators.

CONCLUSIONS

Elevated depressive symptoms and CLD were mutual risk factors in middle-aged and older Chinese adults. Early screening and treatment of depression is needed to reduce CLD risk and related comorbidities including new-onset depression so as to relieve substantial disease burdens of CLD and depression in China.

Prevalence and Associated Factors of Common Mental Disorders Among Pregnant Mothers in Rural Eastern Ethiopia

BACKGROUND

Antenatal common mental disorder is a significant public health issue, especially in low- and middle-income countries with an extensive treatment gap. Common mental disorders have multifaceted implications on maternal and fetal health outcomes during pregnancy with long-running economic and social sequels. This study aimed to determine the prevalence of common mental disorder and associated factors among pregnant mothers in eastern Ethiopia, Kersa and Haramaya Health, and Demographic surveillance sites.

METHODS

A community-based cross-sectional study was conducted in Kersa and Haramaya health and demographic surveillance sites from January 30 to April 30, 2021. World Health Organization Self-Reporting Questionnaire (SRQ-20) was used to measure common mental disorder among 1,015 randomly selected pregnant women. Data were collected face-to-face using open data kit software. Logistic regression was fitted to identify factors associated with common mental disorders.

RESULTS

The overall prevalence of common mental disorders (SRQ > 6) among pregnant women was 37.5% (95% CI: 34.5, 40.5). Current substance use (AOR = 1.99, 95% CI 1.37, 2.88), intimate partner violence (AOR = 2.67, 95% CI 2.02, 3.53), null parity (AOR = 3.10, 95% CI 1.65, 5.84), gestational age [first trimester (AOR = 2.22, 95% CI 1.01, 4.93) and third trimester (AOR = 1.74, 95% CI 1.31, 2.31)], history of abortion (AOR = 2.03, 95% CI 1.27, 3.24), and absence of antenatal care follow-up (AOR = 1.43, 95% CI 1.08, 1.89) were significantly associated with common mental disorder during pregnancy.

CONCLUSION

Common mental disorders are prevalent among pregnant women in the study area with significant correlates. Administration of regular screening programs for maternal mental health conditions in rural, low-income communities, integrating into primary health care settings is imperative to reduce the risk.

COVID-19 and clinical neuropsychology: A review of neuropsychological literature on acute and chronic pulmonary disease

Objective: The illness resulting from Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), better known as COVID-19, has quickly escalated to a worldwide pandemic. Although understanding of the short and long-term manifestations of COVID-19 remains incomplete, there is a preponderance of respiratory pathology in COVID-19 and potential for chronic loss of pulmonary function in recovered patients, raising concerns for associated cognitive impacts.Method: We conducted a narrative review of the existing literature on neuropsychological variables in acute/severe respiratory disease and various forms of chronic pulmonary disease to inform expectations about potential cognitive manifestations of COVID-19.Results: Cognitive dysfunction is common but not inevitable in acute and chronic pulmonary disease, although unique predictors and symptom trajectories appear to be associated with each.Conclusions: Although the full scope of neuropathophysiology associated with COVID-19 remains to be established, pulmonary insults associated with the disease are likely to produce cognitive dysfunction in a substantial percentage of patients.

An analysis of the relationship between chronic obstructive pulmonary disease, smoking and depression in an integrated healthcare system

OBJECTIVE

Chronic Obstructive Pulmonary Disease (COPD) and smoking are highly associated with depression and hypoxia. There is limited knowledge about whether hypoxic conditions interact to cause depression.

METHOD

A population-based cohort study was conducted using the Veterans Affairs (VA) Corporate Data Warehouse. Patients must have accessed any healthcare at a VA facility between 2004 and 2014 and had a negative depression screen (Patient Health Questionnaire-2 (PHQ-2) score ≤ 2). Patients with COPD or a positive depression screen (PHQ-2 score: 3+) during or prior to the year with a negative depression screen were excluded. Logistic regression with annual observations was used to evaluate depression incidence based on COPD and smoking status. Models were adjusted for demographics and other comorbid conditions. A probability scale was used to examine interactions between COPD and smoking.

RESULTS

A total of 3,284,496 patients were included. Patients with COPD and current smokers were at increased risk for developing depression. There were minimal interaction effects between COPD and smoking. The odds of developing depression in a year varied from 1.4% among never smokers without COPD to 2.9.% among current smokers with COPD.

CONCLUSION

Smoking and COPD are independent risk factors for depression and interact to cause depression. Further research is needed to confirm whether hypoxia contributes to this association.

Metacognitive Therapy for Alcohol Use Disorder: A Systematic Case Series

Alcohol Use Disorder (AUD) is a debilitating condition with serious adverse effects on health and psycho-social functioning. The most effective psychological treatments for AUD show moderate efficacy and return to dysregulated alcohol use after treatment is still common. The aim of the present study was to evaluate Metacognitive Therapy (MCT) as applied to AUD. Five patients were treated using a non-concurrent multiple baseline design with follow-up at 3- and 6-months time points. Each patient received 12 one-hour sessions of MCT. Following MCT all patients demonstrated large and clinically meaningful reductions in weekly alcohol use and number of binge drinking episodes that were upheld at follow-up in almost all cases. Metacognitive beliefs, as secondary outcome, also changed substantially. The findings from this study offer preliminary evidence of positive effects associated with MCT in AUD and support the need for a definitive trial of MCT in addictive behaviors.

Prevalence of anxiety and depression symptoms and their associated factors in mild COPD patients from community settings, Shanghai, China: a cross-sectional study

BACKGROUND

Chronic obstructive pulmonary disease (COPD) is a serious disease frequently accompanied by anxiety and depression. Few studies have focused on anxiety and depression for mild COPD patients in China. This study aimed to assess the prevalence and associated factors for anxiety and depression among patients with mild COPD in urban communities.

METHODS

A cross-sectional survey of 275 mild COPD patients was conducted in 6 communities randomly sampled from Pudong New Area of Shanghai, China, in 2016. Data on socioeconomic factors and health conditions were acquired through a face-to-face interview as well as a physical examination. The Hospital Anxiety and Depression Scale (HAD) and EQ-5D visual analogue (EQ-5Dvas) were applied to evaluate their mental health and quality of life, respectively. Logistic regression model was used to estimate adjusted odds ratios (aORs) and their 95% confidential intervals (CI) for risk factors associated with anxiety or depression.

RESULTS

Among 275 subjects, 8.1% had anxiety and 13.4% had depression. Logistic regression analysis indicated that female patients were more likely to suffer from anxiety than male patients (aOR = 6.41, 95% CI:1.73-23.80). Poor health status (EQ-5Dvas score < 70) was significantly associated with increased risks of anxiety (aOR = 5.99, 95% CI: 2.13-16.82) and depression (aOR = 2.67, 95% CI: 1.29-5.52).

CONCLUSIONS

There were increased risks of anxiety and depression in mild COPD patients living in urban communities. Female sex and poor health status were significantly correlated to anxiety or depression. More interventions should be developed to reduce the risks of anxiety and depression at the early stage of COPD.

The importance of thinking styles in predicting binge eating

Impulsivity, Body Mass Index, negative emotions and irrational food beliefs are often reported as predictors of binge eating. In the current study we explored the role played by two thinking styles, namely food thought suppression and desire thinking, in predicting binge eating among young adults controlling for established predictors of this condition. A total of 338 university students (268 females) participated in this study by completing a battery of questionnaires measuring the study variables. Path analysis revealed that impulsivity was not associated with binge eating, that Body Mass Index and negative emotions predicted binge eating, and that irrational food beliefs only influenced binge eating via food thought suppression and desire thinking. In conclusion, thinking styles appear an important predictor of binge eating and they should be taken into consideration when developing clinical interventions for binge eating.

The Association of Cigarette Smoking With Depression and Anxiety: A Systematic Review

BACKGROUND

Many studies report a positive association between smoking and mental illness. However, the literature remains mixed regarding the direction of this association. We therefore conducted a systematic review evaluating the association of smoking and depression and/or anxiety in longitudinal studies.

METHODS

Studies were identified by searching PubMed, Scopus, and Web of Science and were included if they: (1) used human participants, (2) were longitudinal, (3) reported primary data, (4) had smoking as an exposure and depression and/or anxiety as an outcome, or (5) had depression and/or anxiety as the exposure and smoking as an outcome.

RESULTS

Outcomes from 148 studies were categorized into: smoking onset, smoking status, smoking heaviness, tobacco dependence, and smoking trajectory. The results for each category varied substantially, with evidence for positive associations in both directions (smoking to later mental health and mental health to later smoking) as well as null findings. Overall, nearly half the studies reported that baseline depression/anxiety was associated with some type of later smoking behavior, while over a third found evidence that a smoking exposure was associated with later depression/anxiety. However, there were few studies directly supporting a bidirectional model of smoking and anxiety, and very few studies reporting null results.

CONCLUSIONS

The literature on the prospective association between smoking and depression and anxiety is inconsistent in terms of the direction of association most strongly supported. This suggests the need for future studies that employ different methodologies, such as Mendelian randomization (MR), which will allow us to draw stronger causal inferences.

IMPLICATIONS

We systematically reviewed longitudinal studies on the association of different aspects of smoking behavior with depression and anxiety. The results varied considerably, with evidence for smoking both associated with subsequent depression and anxiety, and vice versa. Few studies supported a bidirectional relationship, or reported null results, and no clear patterns by gender, ethnicity, clinical status, length to follow-up, or diagnostic test. Suggesting that despite advantages of longitudinal studies, they cannot alone provide strong evidence of causality. Therefore, future studies investigating this association should employ different methods allowing for stronger causal inferences to be made, such as MR.

Chronic obstructive pulmonary disease and anxiety disorders: a nationwide population-based study in Taiwan

OBJECTIVE

Few studies have investigated the relationship between chronic obstructive pulmonary disease (COPD) and anxiety disorder outcomes. We sought to investigate the association in a large national sample.

METHODS

Cases were identified from Taiwan's National Health Insurance Research Database who were aged 15 years and above, with a new primary diagnosis of COPD (International Classification of Diseases, Ninth Revision codes: 491, 492, 494 and 496) between 2000 and 2007. The 29,951 cases identified were compared to 29,951 controls matched on sex, age, urban/rural residence and socioeconomic status based on insurance premium. Both groups were followed until the end of 2008 for instances of anxiety disorders. Competing risk-adjusted Cox regression analyses were applied, adjusting for matching variables, Charlson comorbidity index, hospital admission days and daily dose of prednisone.

RESULTS

Of the 59,902 subjects, 3951 were found to have anxiety disorders during a mean (SD) follow-up period of 5.5 (2.5) years. COPD, female, urban residence, lower dose of prednisone use, depressive disorders and higher outpatient visits were independent predictors of incident anxiety disorder.

CONCLUSIONS

COPD was associated with increased risk of an anxiety disorder diagnosis, independent of a number of potential confounding factors.

Assessment of illness acceptance by patients with COPD and the prevalence of depression and anxiety in COPD

Background

COPD is a civilization disease. It affects up to 8%–10% of population >30 years of age. Coexistence of depression occurs in 20%–40% of patients with COPD. Depression and anxiety reduce compliance and worsen prognosis.

Objective

The aims of this study were to determine the degree of illness acceptance among patients with COPD, to examine the relation between disease acceptance and perceived anxiety and depression, and to verify which of the sociodemographic and clinical factors are associated with illness acceptance, anxiety, and depression.

Materials and methods

The study included 102 patients with COPD (mean age 65.8 years), hospitalized due to exacerbations. Acceptance of Illness Scale and Hospital Anxiety and Depression Scale were used. For statistical analysis, Student’s t-test and Pearson’s r correlation coefficient were carried out.

Results

The overall illness acceptance level was moderate with a tendency toward lack of acceptance (mean 20.6, standard deviation [SD] 7.62). The overall scores were 10.2 (SD 3.32) for anxiety and 10.8 (SD 4.14) for depression, which indicate borderline or high intensity of these symptoms. Acceptance of illness was negatively correlated with the intensity of depression symptoms (r=−0.46, P<0.05). Intensity of depression was significantly associated with intensity of smoking, duration of the disease, severity of dyspnea, and living in a rural area.

Conclusion

Early identification and assessment of depression and anxiety symptoms allow health care providers to offer patients at risk of depression a special medical supervision. Rapid start of antidepressant therapy may increase illness acceptance and improve prognosis among patients with COPD.

Desire thinking: A risk factor for binge eating?

In the current study we explored the role of desire thinking in predicting binge eating independently of Body Mass Index, negative affect and irrational food beliefs. A sample of binge eaters (n=77) and a sample of non-binge eaters (n=185) completed the following self-report instruments: Hospital Anxiety and Depression Scale, Irrational Food Beliefs Scale, Desire Thinking Questionnaire, and Binge Eating Scale. Mann-Whitney U tests revealed that all variable scores were significantly higher for binge eaters than non-binge eaters. A logistic regression analysis indicated that verbal perseveration was a predictor of classification as a binge eater over and above Body Mass Index, negative affect and irrational food beliefs. A hierarchical regression analysis, on the combined sample, indicated that verbal perseveration predicted levels of binge eating independently of Body Mass Index, negative affect and irrational food beliefs. These results highlight the possible role of desire thinking as a risk factor for binge eating.

Body mass index and anxiety/depression as mediators of the effects of child sexual and physical abuse on physical health disorders in women

The relation between childhood sexual abuse (CSA) and physical health disorders in adulthood, and what factors may serve as mediators, remains poorly understood. Using data from the 2007 Adult Psychiatric Morbidity Survey (N=3,486), we tested whether CSA was associated with physical health disorders in adult women and if mediated effects via body mass index (BMI), anxiety/depression, alcohol dependence, and smoking were present. Compared to women with no CSA, women who had experienced CSA involving intercourse had more than twice the odds of being obese, more than 3 times the odds of experiencing mental health disorders, more than 4 times the odds of being alcohol dependent, more than 5 times the odds of being drug dependent, and more than 6 times the odds of attempting suicide. Those experiencing both CSA and child physical abuse (CPA) were on average over 11kg heavier than those with neither CSA nor CPA. After controlling for demographics, CPA, and childhood bullying, CSA was associated with the majority of physical health disorders studied (typically 50-100% increases in odds). Evidence was found consistent with mediation by BMI (typically accounting for 5-20% increases in odds) and anxiety/depression (typically accounting for 8-40% increases in odds), in a dose-response manner, for the majority of physical health disorders. Bidirectional relations among these mediators and physical health disorders, and residual confounding, may have led to overestimation of mediation through BMI and anxiety/depression and underestimation of mediation through alcohol/smoking. Relations between both CPA and childhood bullying and physical health disorders in adulthood were also found. Longitudinal studies employing more sensitive measures of potential mediators are now required.

Sertraline hydrochloride treatment for patients with stable chronic obstructive pulmonary disease complicated with depression: a randomized controlled trial

BACKGROUND

There is a lack of randomized controlled trials to assess the effects of pharmacological treatments in patients with stable chronic obstructive pulmonary disease (COPD) complicated with moderate or severe depression.

AIMS

To assess the efficacy of sertraline hydrochloride on improving the quality of life of patients with stable COPD complicated with depression.

METHODS

This randomized controlled trial, conducted from May to November 2013 in the Huai'an Second Hospital, Huai'an, China, enrolled 120 patients with stable COPD who had moderate or severe depression. Patients were randomly assigned to control and interventional groups (n = 60 in each group). In addition to the treatment for COPD, interventional group also received sertraline hydrochloride tablets 50 mg/day for 6 weeks, while the control group received placebo. The primary end point included COPD assessment test (CAT) scores and the secondary endpoint included 6-min walk distance and 17-item Hamilton Depression Rating Scale (HAMD-17) scores. Parameters of spirometry and adverse events were also observed.

RESULTS

There was no significant difference in improvements in the parameters of spirometry tests before and after the treatment with sertraline hydrochloride tablets between the placebo and interventional groups (P > 0.05). Patients in the sertraline hydrochloride group showed more changes in the HAMD-17 scores and CAT scores after treatment (P < 0.05) and travelled longer distances in the 6-min walk test than in the placebo group (P < 0.05).

CONCLUSION

Antidepressant treatment can improve the quality of life and exercise capacity of patients with depression, and it can also improve depression scores, but not lung function.

Associations of Self-Reported Cigarette Smoking with Chronic Obstructive Pulmonary Disease and Co-Morbid Chronic Conditions in the United States

BACKGROUND

The question of how smoking, COPD, and other chronic diseases are related remains unresolved. Therefore, we examined relationships between smoking, COPD, and 10 other chronic diseases and assessed the prevalence of co-morbid chronic conditions among people with COPD.

METHODS

We analyzed cross-sectional data from 405,856 US adults aged 18 years or older in the 2011 Behavioral Risk Factor Surveillance System. We used log-linear regression to estimate prevalence ratios (PRs) and their corresponding 95% confidence intervals (CIs) for these relationships adjusting for age, gender, race/ethnicity, marital status, educational attainment, annual household income, and health insurance coverage.

RESULTS

Overall, 17.5% reported being current cigarette smokers, 6.9% reported having COPD, and 71.2% reported another chronic condition. After age-adjustment, prevalence of COPD was 14.1% (adjusted PR = 3.9; 95% CI: 3.7, 4.1) among current smokers and 7.1% (adjusted PR = 2.5; 95% CI: 2.4, 2.7) among former smokers compared to 2.9% among never smokers. The most common chronic conditions among current smokers after age-adjustment were high cholesterol (36.7%), high blood pressure (34.6%), arthritis (29.4%), depression (27.4%), and asthma (16.9%). In separate multivariable models, smoking and COPD were associated with each of the 10 other chronic conditions (p < 0.05), which also included cancer, coronary heart disease, diabetes, kidney disease, and stroke; COPD modified associations between smoking and co-morbidities, while smoking did not modify associations between COPD and co-morbidities.

CONCLUSIONS

Our findings confirm previous evidence and highlight the continuing importance of comprehensive care coordination for people with COPD and co-morbid chronic conditions and also tobacco prevention and control strategies.

Serotonin and corticosterone rhythms in mice exposed to cigarette smoke and in patients with COPD: implication for COPD-associated neuropathogenesis

The circadian timing system controls daily rhythms of physiology and behavior, and disruption of clock function can trigger stressful life events. Daily exposure to cigarette smoke (CS) can lead to alteration in diverse biological and physiological processes. Smoking is associated with mood disorders, including depression and anxiety. Patients with chronic obstructive pulmonary disease (COPD) have abnormal circadian rhythms, reflected by daily changes in respiratory symptoms and lung function. Corticosterone (CORT) is an adrenal steroid that plays a considerable role in stress and anti-inflammatory responses. Serotonin (5-hydroxytryptamine; 5HT) is a neurohormone, which plays a role in sleep/wake regulation and affective disorders. Secretion of stress hormones (CORT and 5HT) is under the control of the circadian clock in the suprachiasmatic nucleus. Since smoking is a contributing factor in the development of COPD, we hypothesize that CS can affect circadian rhythms of CORT and 5HT secretion leading to sleep and mood disorders in smokers and patients with COPD. We measured the daily rhythms of plasma CORT and 5HT in mice following acute (3 d), sub-chronic (10 d) or chronic (6 mo) CS exposure and in plasma from non-smokers, smokers and patients with COPD. Acute and chronic CS exposure affected both the timing (peak phase) and amplitude of the daily rhythm of plasma CORT and 5HT in mice. Acute CS appeared to have subtle time-dependent effects on CORT levels but more pronounced effects on 5HT. As compared with CORT, plasma 5HT was slightly elevated in smokers but was reduced in patients with COPD. Thus, the effects of CS on plasma 5HT were consistent between mice and patients with COPD. Together, these data reveal a significant impact of CS exposure on rhythms of stress hormone secretion and subsequent detrimental effects on cognitive function, depression-like behavior, mood/anxiety and sleep quality in smokers and patients with COPD.

Bidirectional associations between clinically relevant depression or anxiety and COPD: a systematic review and meta-analysis

BACKGROUND

The longitudinal associations between depression or anxiety and COPD, and their comorbid effect on prognosis, have not been adequately addressed by previous reviews. We aimed to systematically assess these associations to inform guidelines and practice.

METHODS

We searched electronic databases for articles published before May 2012. Longitudinal studies in adult populations that reported an association between clinically relevant depression or anxiety and COPD, or that reported their comorbid effect on exacerbation and/or mortality, were eligible. Risk ratios (RRs) were pooled across studies using random-effects models and were verified using fixed-effects models. Heterogeneity was explored with subgroup and metaregression analyses.

RESULTS

Twenty-two citations yielded 16 studies on depression or anxiety as predictors of COPD outcomes (incident COPD/chronic lung disease or exacerbation) and/or mortality, in 28,759 participants followed for 1 to 8 years, and six studies on COPD as a predictor of depression in 7,439,159 participants followed for 1 to 35 years. Depression or anxiety consistently increased the risk of COPD outcomes (RR, 1.43; 95% CI, 1.22-1.68), particularly in higher-quality studies and in people aged ≤ 66 years. Comorbid depression increased the risk of mortality (RR, 1.83; 95% CI, 1.00-3.36), particularly in men. Anxiety (or psychologic distress) increased the risk of COPD outcomes/mortality in most studies (RR, 1.27; 95% CI, 1.02-1.58). Finally, COPD consistently increased the risk of depression (RR, 1.69; 95% CI, 1.45-1.96).

CONCLUSIONS

Depression and anxiety adversely affect prognosis in COPD, conferring an increased risk of exacerbation and possibly death. Conversely, COPD increases the risk of developing depression. These bidirectional associations suggest potential usefulness of screening for these disease combinations to direct timely therapeutic intervention.

Associations of depression diagnosis and antidepressant treatment with mortality among young and disabled Medicare beneficiaries with COPD

OBJECTIVE

Depression is prevalent in chronic obstructive pulmonary disease (COPD) patients and a risk factor for COPD exacerbation and death. The objective of this study was to determine the associations of depression diagnosis and antidepressant treatment with mortality among Social Security Disability Insurance (SSDI)-eligible (age <65 years who had permanent physical or mental disabilities) Medicare beneficiaries with COPD.

METHOD

This retrospective cohort study used a 5% random sample of SSDI-eligible Medicare beneficiaries with COPD in stand-alone Part D plans during 2006-2008 (n=17,320). COPD and depression diagnoses were assessed during 2006. Evidence of antidepressant treatment was measured in 2006-2008. All-cause mortality was measured in 2007-2008. Cox proportional hazards models were used to examine the associations of depression diagnosis with mortality and, among depressed beneficiaries, antidepressant treatment (time dependent) with mortality after controlling for covariates.

RESULTS

More than one third (37.3%) of SSDI-eligible beneficiaries with COPD had a baseline depression diagnosis; of those, 86.8% had evidence of antidepressant treatment. Baseline depression diagnosis was an independent risk factor for 2-year mortality [hazard ratio (HR)=1.21; 99% confidence interval (CI)=1.07-1.37]. Among depressed beneficiaries, receiving antidepressant treatment was associated with significantly lower mortality (HR=0.55; 99% CI=0.44-0.68).

CONCLUSION

Proactive antidepressant treatment should be considered as an intervention to reduce mortality for this young and disabled Medicare population.

Mental health among adults with asthma and chronic bronchitis. A population-based study in Spain

OBJECTIVES

To analyze the conditions of psychological dysfunction and positive mental health in patients with asthma and chronic bronchitis (CB), as compared to healthy individuals, and to identify the factors associated with these mental health indicators.

METHODS

Cross-sectional study based on data obtained from the European Health Interview Survey for Spain (EHISS, 2009). We identified individuals with asthma and CB using a specific questionnaire. In order to assess mental health, two indicators extracted from questionnaire SF-36 were used: psychological dysfunction and positive mental health status.

RESULTS

Out of 19,598 subjects included in the study, 8.3% were classified as asthmatic and 7.4% as CB. Healthy individuals had significantly higher psychological dysfunction scores than those with asthma and CB. The same occurred with positive mental health. The variables independently associated with lower scores out of these variables were gender female, a greater number of chronic diseases and obesity. On the contrary, alcohol consumption and physical exercise were associated with a higher score in the aforementioned variables.

CONCLUSIONS

Healthy individuals have significantly higher scores in psychological dysfunction and positive mental health than patients with asthma and CB. This suggests that their mental health is much better. The variables related with lower scores out of these variables, and therefore with worse mental health, are: being female, having a greater number of chronic diseases and obesity. On the contrary, alcohol consumption and the practicing of physical exercise are associated with a higher score in the aforementioned variables, thus indicating a greater degree of mental health.

Prevalence of anxiety and depression among chronic bronchitis patients and the associated factors

BACKGROUND AND OBJECTIVE

Patients with COPD, including those with chronic bronchitis (CB), have a high risk of suffering from psychiatric disorders. Although depression has always received greater attention in these patients, most of the published studies have been of poor methodological quality. Anxiety has received less attention than depression among COPD patients. The aim of this study was to assess the prevalence of anxiety and depression among patients with CB and to identify associated factors.

METHODS

This was a descriptive, epidemiological population-based study. The study was based on individual data obtained from the 2006 Spanish National Health Survey. Subjects aged 40years and over were selected for the study. Individuals with CB were identified using a specific questionnaire. Sociodemographic characteristics and health-related variables were analysed.

RESULTS

Of the 20,060 subjects selected, 1320 were categorized as having CB (6.5%). The prevalence of anxiety was 15.6% among subjects with CB and 9.4% among those without the disease (P<0.01). Variables that were independently and significantly associated with anxiety among CB patients were female gender, increased age and concomitant comorbidities. The prevalence of depression was 15.9% among subjects with CB and 7.6% among those without the disease (P<0.05). Variables associated with depression among CB patients were female gender, middle age, poorer self-perception of health status, concomitant comorbidities, abstemiousness and the need for emergency room attendance in the previous year.

CONCLUSIONS

Anxiety or depression is around twice as frequent among CB patients as it is among those without CB. Variables associated with anxiety or depression among CB patients included female gender and concomitant comorbidities.

Anxiety and depression during hospital treatment of exacerbation of chronic obstructive pulmonary disease

This study investigated the prevalence, risk factors and rate of recognition of anxiety and depression in 50 patients hospitalized for exacerbation of chronic obstructive pulmonary disease (COPD). Using the Primary Care Evaluation of Mental Disorders questionnaire, 13 patients were identified as having depression, four had anxiety and eight had a combination of the two. Patients with anxiety and/or depression had a significantly higher partial pressure of oxygen and pH, and a lower partial pressure of carbon dioxide, in arterial blood on admission, more severe dyspnoea after a 6-min walk test and less improvement of dyspnoea from admission to discharge than COPD patients without anxiety and/or depression. Two patients were referred to a mental health specialist during their hospitalization, indicating a low rate of recognition. The results suggest that patients with mental disorders are referred and admitted to hospital earlier in the course of a COPD exacerbation due to earlier and more intense perception of dyspnoea.

The process of trying to quit smoking from the perspective of patients with chronic obstructive pulmonary disease

AIM

To investigate why some patients with chronic obstructive pulmonary disease (COPD) have difficulty quitting smoking and to develop a theoretical model that describes their perspectives on these difficulties.

METHODS

Grounded theory method was used from the selection of participants to the analyses of semi-structured interviews with 14 patients with COPD. Four additional interviews were conducted to ensure relevance.

RESULTS

The analysis resulted in a theoretical model that illustrates the process of 'Patients with COPD trying to quit smoking'. The model illuminates factors related to the decision to try to quit smoking, including pressure-filled mental states and constructive or destructive pressure-relief strategies. The constructive strategies lead either to success in quitting or to continuing to try to quit. The destructive strategies can lead to losing hope and becoming resigned to continuing to smoke.

CONCLUSION

The theoretical model 'Patients trying to quit smoking' contributes to a better understanding of the pressure-filled mental states and destructive strategies experienced by some patients with COPD in the process of trying to quit. This better understanding can help nurses individualise counselling. Moreover, patients' own awareness of these states and strategies may facilitate their efforts to quit. The information in the model can also be used as a supplement to methods such as motivational interviewing (MI).

Systematic review with meta-analysis of the epidemiological evidence relating smoking to COPD, chronic bronchitis and emphysema

BACKGROUND

Smoking is a known cause of the outcomes COPD, chronic bronchitis (CB) and emphysema, but no previous systematic review exists. We summarize evidence for various smoking indices.

METHODS

Based on MEDLINE searches and other sources we obtained papers published to 2006 describing epidemiological studies relating incidence or prevalence of these outcomes to smoking. Studies in children or adolescents, or in populations at high respiratory disease risk or with co-existing diseases were excluded. Study-specific data were extracted on design, exposures and outcomes considered, and confounder adjustment. For each outcome RRs/ORs and 95% CIs were extracted for ever, current and ex smoking and various dose response indices, and meta-analyses and meta-regressions conducted to determine how relationships were modified by various study and RR characteristics.

RESULTS

Of 218 studies identified, 133 provide data for COPD, 101 for CB and 28 for emphysema. RR estimates are markedly heterogeneous. Based on random-effects meta-analyses of most-adjusted RR/ORs, estimates are elevated for ever smoking (COPD 2.89, CI 2.63-3.17, n = 129 RRs; CB 2.69, 2.50-2.90, n = 114; emphysema 4.51, 3.38-6.02, n = 28), current smoking (COPD 3.51, 3.08-3.99; CB 3.41, 3.13-3.72; emphysema 4.87, 2.83-8.41) and ex smoking (COPD 2.35, 2.11-2.63; CB 1.63, 1.50-1.78; emphysema 3.52, 2.51-4.94). For COPD, RRs are higher for males, for studies conducted in North America, for cigarette smoking rather than any product smoking, and where the unexposed base is never smoking any product, and are markedly lower when asthma is included in the COPD definition. Variations by sex, continent, smoking product and unexposed group are in the same direction for CB, but less clearly demonstrated. For all outcomes RRs are higher when based on mortality, and for COPD are markedly lower when based on lung function. For all outcomes, risk increases with amount smoked and pack-years. Limited data show risk decreases with increasing starting age for COPD and CB and with increasing quitting duration for COPD. No clear relationship is seen with duration of smoking.

CONCLUSIONS

The results confirm and quantify the causal relationships with smoking.

Association of socio-economic, gender and health factors with common mental disorders in women: a population-based study of 5703 married rural women in India

BACKGROUND

There are few population-based studies from low- and middle-income countries that have described the association of socio-economic, gender and health factors with common mental disorders (CMDs) in rural women.

METHODS

Population-based study of currently married rural women in the age group of 15-39 years. The baseline data are from the National Family Health Survey-II conducted in 1998. A follow-up study was conducted 4 years later in 2002-03. The outcome of CMD was assessed using the 12-item General Health Questionnaire (GHQ-12). Due to the hierarchical nature and complex survey design, data were analysed using mixed-effect logistic regression with random intercept model.

RESULTS

A total of 5703 women (representing 83.5% of eligible women) completed follow-up. The outcome of CMD was observed in 609 women (10.7%, 95% confidence interval 9.8-11.6). The following factors were independently associated with the outcome of CMD in the final multivariable model: higher age, low education, low standard of living, recent intimate partner violence (IPV), husband's unsatisfactory reaction to dowry, husband's alcohol use and women's own tobacco use.

CONCLUSIONS

Socio-economic and gender disadvantage factors are independently associated with CMDs in this population of women. Strategies that address structural determinants, for example to promote women's education and reduce their exposure to IPV, may reduce the burden of CMDs in women.

Prevalence of depression and anxiety in outpatients with chronic airway lung disease

BACKGROUND/AIMS

Patients with chronic airway lung diseases often experience depression and anxiety, but little information is available regarding Koreans with these conditions. We thus assessed depression and anxiety in Korean patients with chronic airway lung diseases.

METHODS

The degree of depression and anxiety in 84 outpatients with chronic obstructive pulmonary disease (COPD), 37 with asthma, 33 with bronchiectasis, and 73 healthy controls were evaluated by the Beck Depression Inventory (BDI) and the State-Trait Anxiety Inventory (STAI).

RESULTS

The patients with COPD and bronchiectasis had higher BDI scores and were more likely than controls to experience depression ([COPD, 17; range, 0 to 42; prevalence, 55%], [bronchiectasis, 16; range, 3 to 51; prevalence, 55%], [controls, 13; range, 0 to 31; prevalence, 30%], p < 0.05). The state-anxiety scores of the patients were higher than those of the controls, but only the bronchiectasis group demonstrated a higher frequency of state-anxiety compared with the controls (39 vs. 16%, patients vs. controls, p = 0.015). Among all patients, 22% presented with concomitant depression and state-anxiety, and 25% demonstrated depression and trait-anxiety. Depression was positively correlated with both state-anxiety (r = 0.644) and trait-anxiety (r = 0.597, p < 0.0001). Irrespective of individual diagnosis, post-bronchodilator FEV(1) (odds ratio [OR], 0.972; p = 0.027) and smoking history (OR, 3.894; p = 0.018) were independent risk factors for depression in patients with chronic airway lung diseases.

CONCLUSIONS

Chronic airway lung diseases are associated with depression and/or anxiety, particularly in those with a higher airflow limitation and/or history of smoking.

Low respiratory function increases the risk of depressive symptoms in later life in men

OBJECTIVE

To assess the risk of depressive symptoms with respect to respiratory function in middle-aged men. Chronic lung diseases are associated with a high prevalence of depression, but the association of poor respiratory function with depressive symptoms has not been established in prospective population-based cohort studies.

METHODS

In a prospective, population-based cohort study with up to 30 years of follow-up, we included 1205 men aged 50 to 69 years from Finland (n = 663) and Italy (n = 542). Forced vital capacity (FVC) and forced expiratory flow in 0.75 sec (FEV(0.75)) in 1970 were analyzed in relationship to depressive symptoms (by Zung self-rating depression scale [SDS]) in 1985, 1990, 1995, and 2000, using multilevel regression models. Subsequent analyses were done separately in the strata with (n = 501) and without (n = 704) chronic diseases in 1970 (i.e., chronic lung diseases, cardiovascular diseases, or diabetes mellitus).

RESULTS

Poor respiratory function was associated independently with steeper increases in depressive symptoms over time, both for FVC (p < .001) and FEV(0.75) (p = .004). In participants without chronic diseases, a standard deviation (SD) increase in FVC was associated with a 1.1-point decrease (standard error [SE] = 0.4) in Zung SDS (p = .01) and a 1.5-point decrease (SE = 0.4) (p < .001) in participants with chronic diseases (p = .27 for interaction). Low FEV(0.75) was associated with more depressive symptoms in participants with chronic diseases (1.7 SE 0.4 decrease per SD; p < .001), but not in participants without chronic diseases (0.6 SE 0.4 decrease per SD; p = .16; p = .008 for interaction).

CONCLUSIONS

Small lung volumes were associated with an increased risk of subsequent depressive symptoms at old age, especially in persons with chronic lung diseases, cardiovascular diseases, or diabetes mellitus at baseline.

Modeling of longitudinal polytomous outcome from complex survey data--application to investigate an association between mental distress and non-malignant respiratory diseases

BACKGROUND

The data from longitudinal complex surveys based on multi-stage sampling designs contain cross-sectional dependencies among units due to clustered nature of the data and within-subject dependencies due to repeated measurements. Special statistical methods are required to analyze longitudinal complex survey data.

METHODS

Statistics Canada's longitudinal National Population Health Survey (NPHS) dataset from the first five cycles (1994/1995 to 2002/2003) was used to investigate the effects of demographic, social, life-style, and health-related factors on the longitudinal changes of mental distress scores among the NPHS participants who self-reported physician diagnosed respiratory diseases, specifically asthma and chronic bronchitis. The NPHS longitudinal sample includes 17,276 persons of all ages. In this report, participants 15 years and older (n = 14,713) were considered for statistical analysis. Mental distress, an ordinal outcome variable (categories: no/low, moderate, and high) was examined. Ordered logistic regression models based on the weighted generalized estimating equations approach were fitted to investigate the association between respiratory diseases and mental distress adjusting for other covariates of interest. Variance estimates of regression coefficients were computed by using bootstrap methods. The final model was used to predict the probabilities of prevalence of no/low, moderate or high mental distress scores.

RESULTS

Accounting for design effects does not vary the significance of the coefficients of the model. Participants suffering with chronic bronchitis were significantly at a higher risk (ORadj = 1.37; 95% CI: 1.12-1.66) of reporting high levels of mental distress compared to those who did not self-report chronic bronchitis. There was no significant association between asthma and mental distress. There was a significant interaction between sex and self-perceived general health status indicating a dose-response relationship. Among females, the risk of mental distress increases with increasing deteriorating (from excellent to very poor) self-perceived general health.

CONCLUSIONS

A positive association was observed between the physician diagnosed self-reported chronic bronchitis and an increased prevalence of mental distress when adjusted for important covariates. Variance estimates of regression coefficients obtained from the sandwich estimator (i.e. not accounting for design effects) were similar to bootstrap variance estimates (i.e. accounting for design effects). Even though these two sets of variance estimates are similar, it is more appropriate to use bootstrap variance estimates.

The cost-effectiveness of antidepressants for smoking cessation in chronic obstructive pulmonary disease (COPD) patients

OBJECTIVES

In healthy smokers, antidepressants can double the odds of cessation. Because of its four times lower costs and comparable efficacy in healthy smokers, nortriptyline appears to be favourable compared to bupropion. We assessed which of both drugs was most effective and cost-effective in stopping smoking after 1 year compared with placebo among smokers at risk or with existing chronic obstructive pulmonary disease (COPD).

METHODS

A total of 255 participants, aged 30-70 years, received smoking cessation counselling and were assigned bupropion, nortriptyline or placebo randomly for 12 weeks. Prolonged abstinence from smoking was defined as a participant's report of no cigarettes from week 4 to week 52, validated by urinary cotinine. Costs were calculated using a societal perspective and uncertainty was assessed using the bootstrap method.

RESULTS

The prolonged abstinence rate was 20.9% with bupropion, 20.0% with nortriptyline and 13.5% with placebo. The differences between bupropion and placebo [relative risk (RR) = 1.6; 95% confidence interval (CI) 0.8-3.0] and between nortriptyline and placebo (RR = 1.5; 95% CI 0.8-2.9) were not significant. Severity of airway obstruction did not influence abstinence significantly. Societal costs were 1368 euros (2.5th-97.5th percentile 193-5260) with bupropion, 1906 euros (2.5th-97.5th 120-17 761) with nortriptyline and 1212 euros (2.5th-97.5th 96-6602) with placebo. Were society willing to pay more than 2000 euros for a quitter, bupropion was most likely to be cost-effective.

CONCLUSIONS

Bupropion and nortriptyline seem to be equally effective, but bupropion appears to be more cost-effective when compared to placebo and nortriptyline. This impression holds using only health care costs. As the cost-effectiveness analyses concern some uncertainties, the results should be interpreted with care and future studies are needed to replicate the findings.

Smoking, nicotine and neuropsychiatric disorders

Tobacco smoking is an extremely addictive and harmful form of nicotine (NIC) consumption, but unfortunately also the most prevalent. Although disproportionately high frequencies of smoking and its health consequences among psychiatric patients are widely known, the neurobiological background of this epidemiological association is still obscure. The diverse neuroactive effects of NIC and some other major tobacco smoke constituents in the central nervous system may underlie this association. This present paper summarizes the pharmacology of NIC and its receptors (nAChR) based on a systematic review of the literature. The role of the brain's reward system(s) in NIC addiction and the results of functional and structural neuroimaging studies on smoking-related states and behaviors (i.e. dependence, craving, withdrawal) are also discussed. In addition, the epidemiological, neurobiological, and genetic aspects of smoking in several specific neuropsychiatric disorders are reviewed and the clinical relevance of smoking in these disease states addressed.

The risk for depression comorbidity in patients with COPD

INTRODUCTION

Patients with COPD are believed to have a high risk for the development of depression. However, it remains unclear whether or not there is a temporal relation between COPD and depression, and if the higher risk for depression is a result of having a chronic disease, or is specific for COPD. The aim of this study is to compare the risk for physician-diagnosed depression in patients with COPD, patients with diabetes mellitus (DM), and control subjects without chronic conditions.

METHODS

The study was a prospective cohort study based on the Continuous Morbidity Registration database. Cox proportional hazards analysis was used to identify the risk of a first episode of depression in patients with COPD compared to patients with DM and matched control subjects without chronic conditions. The following covariates were added to the model: age, the general practice the patient was listed with, socioeconomic status, comorbidity, and gender. All patients with a diagnosis of depression preceding the date of first diagnosis of COPD or DM (dummy date in control subjects) were excluded.

RESULTS

The hazard ratios for a first episode of depression in the COPD group compared to the DM group and healthy controls subjects were 1.80 (95% confidence interval [CI], 1.16 to 2.81) and 1.68 (95% CI, 1.20 to 2.35), respectively.

DISCUSSION

We found a temporal relation between COPD and physician-diagnosed depression. Patients with COPD are more likely to have depression diagnosed than patients with DM and control subjects without chronic conditions.

Predicting the onset and persistence of episodes of depression in primary health care. The predictD-Spain study: methodology

Background

The effects of putative risk factors on the onset and/or persistence of depression remain unclear. We aim to develop comprehensive models to predict the onset and persistence of episodes of depression in primary care. Here we explain the general methodology of the predictD-Spain study and evaluate the reliability of the questionnaires used.

Methods

This is a prospective cohort study. A systematic random sample of general practice attendees aged 18 to 75 has been recruited in seven Spanish provinces. Depression is being measured with the CIDI at baseline, and at 6, 12, 24 and 36 months. A set of individual, environmental, genetic, professional and organizational risk factors are to be assessed at each follow-up point. In a separate reliability study, a proportional random sample of 401 participants completed the test-retest (251 researcher-administered and 150 self-administered) between October 2005 and February 2006. We have also checked 118,398 items for data entry from a random sample of 480 patients stratified by province.

Results

All items and questionnaires had good test-retest reliability for both methods of administration, except for the use of recreational drugs over the previous six months. Cronbach's alphas were good and their factorial analyses coherent for the three scales evaluated (social support from family and friends, dissatisfaction with paid work, and dissatisfaction with unpaid work). There were 191 (0.16%) data entry errors.

Conclusion

The items and questionnaires were reliable and data quality control was excellent. When we eventually obtain our risk index for the onset and persistence of depression, we will be able to determine the individual risk of each patient evaluated in primary health care.

Comorbidity of depression with chronic diseases: a population-based study in Aleppo, Syria

OBJECTIVE

To assess the comorbidity and correlates of depression in chronic diseases in the community in Aleppo, Syria. This has never been previously investigated in an Arab country.

METHOD

We conducted a cross-sectional, population-based study in Aleppo on adults aged 18-65 (N = 2038). We collected data utilizing a structured interview questionnaire. Socio-demographics, general health information, and self-report of physician-diagnosed depression and chronic diseases active in the past year were obtained. We used logistic regression to estimate the odds of depression in chronic diseases and socio-demographic correlates of depression comorbid with chronic diseases.

RESULTS

Mean age (SD) was 35.3 (12.1) years, 55% were female. In women, predictors of depression were heart disease (OR = 3.95, 95% CI: 1.50-10.40), hypertension (OR = 2.92, 95% CI: 1.53-5.55), and kidney disease (OR = 2.96, 95% CI: 1.64-5.32). Depression comorbidity with any chronic disease decreased in higher socio-economic status (middle vs. low: OR = 0.28, 95% CI: 0.12-0.65; high vs. low: OR = 0.20, 95% CI: 0.05-0.81). In men, predictors of depression were rheumatism (OR = 7.10, 95% CI: 2.58-19.60) and respiratory disease (OR = 3.77, 95% CI: 1.23-11.60). Depression comorbidity decreased in residence in formal zones (OR = 0.22, 95% CI: 0.06-0.80).

CONCLUSION

Depression is associated with many chronic diseases in the community in Aleppo, a finding consistent with reports from other cultures. Potential gender-related risk factors were identified. Findings inform public mental health planning and support the delivery of depression treatment in primary care settings.

Race/ethnicity, income, chronic asthma, and mental health: a cross-sectional study using the behavioral risk factor surveillance system

OBJECTIVE

To examine the relationships among race/ethnicity, income, and asthma on mental health outcomes in individuals surveyed as part of the Centers for Disease Control and Prevention 2004 Behavioral Risk Factor Surveillance System (BRFSS). Racial and ethnic disparities in asthma prevalence exist, which may be explained in part by socioeconomic status. Individuals with asthma often have comorbid mental health conditions, the rates of which are also marked by significant racial and ethnic disparities.

METHODS

We obtained 2004 BRFSS demographic, asthma, and mental health data on Hispanics, non-Hispanic Whites, and non-Hispanic Blacks. Linear regression analysis was used to examine the main and interaction effects of race/ethnicity, income, and history of asthma on poor mental health (n = 282,011), as well as on depression (n = 14,907) and anxiety (n = 14,871) specifically.

RESULTS

A significant three-way interaction emerged among race/ethnicity, income, and history of chronic asthma on number of days of poor mental health. Among the most impoverished (income <$15,000/yr), Hispanics with asthma reported greater number of days of poor mental health than non-Hispanic Whites with asthma. However, among those with slightly greater economic resources, Hispanics with asthma reported fewer number of days of poor mental health than non-Hispanic Whites.

CONCLUSIONS

The results of this study highlight the complex interactions among race/ethnicity, income, and asthma on mental health outcomes.

Metacognition as a mediator of the relationship between emotion and smoking dependence

This study investigated the role of metacognition as a mediator of the relationship between emotion and smoking dependence. A sample of 104 smokers completed the following questionnaires: Hospital Anxiety and Depression Scale (HADS), Metacognitions Questionnaire 30 (MCQ-30), and Fagerström Test of Nicotine Dependence (FTND). Three dimensions of metacognition (positive beliefs about worry, negative beliefs about worry concerning uncontrollability and danger, and beliefs about cognitive confidence) were found to be positively and significantly correlated with smoking dependence. A positive and significant correlation was also observed between anxiety and depression on the one hand, and smoking dependence on the other. Structural equation modeling was used to test a mediational model in which emotion predicted metacognition which in turn predicted smoking dependence. The results supported the hypothesis that the relationship between emotion and smoking dependence is partially mediated by metacognition, suggesting that metacognitive theory may be relevant to understanding smoking dependence. The implications of these findings are discussed.

Association of Psychological Well‐Being with Oral Conditions in Japanese Workers

Although the effect of disorders on psychological well-being is well-known, there are few studies focusing on oral conditions at the worksite. The present study examined the association between psychological well-being and oral conditions of Japanese workers. A cross-sectional study was performed using data from 1381 Japanese civil service officers aged 20-59 yr old. Psychological well-being was measured with the 12-item version of the General Health Questionnaire (GHQ-12) in a comprehensive health questionnaire, while measures for oral condition included self-rated oral health, oral symptoms and clinical indicators: dental caries, periodontal status and number of missing teeth. The mean GHQ scores according to the levels of each oral condition were estimated by analysis of variance, separately for males and females. Higher scores corresponded to poorer psychological well-being. Age, gender, smoking and type of occupation were adjusted in a multivariate analysis. Psychological well-being was not associated significantly with dental caries, periodontal status or number of missing teeth. The adjusted means of the GHQ scores for ;conscious of appearance of mouth' were significantly different among the categories for both genders (male: p<0.001, female: p=0.018). For five of six oral symptoms, the adjusted means of GHQ scores were lowest for those respondents who rated their oral symptoms as ;never or hardly ever.' Our results did not show that psychological well-being was associated with oral conditions measured by clinical indicators. However, an association was found between some oral symptoms and psychological well-being. Absence of oral symptoms seems to be related to better psychological well-being.

Risk factors for common mental disorders in women. Population-based longitudinal study

BACKGROUND

The determinants of common mental disorders in women have not been described in longitudinal studies from a low-income country.

METHOD

Population-based cohort study of 2494 women aged 18 to 50 years, in India. The Revised Clinical Interview Schedule was used for the detection of common mental disorders.

RESULTS

There were 39 incident cases of common mental disorder in 2166 participants eligible for analysis (12-month rate 1.8%, 95% CI 1.3-2.4%). The following baseline factors were independently associated with the risk for common mental disorder: poverty (low income and having difficulty making ends meet); being married as compared with being single; use of tobacco; experiencing abnormal vaginal discharge; reporting a chronic physical illness; and having higher psychological symptom scores at baseline.

CONCLUSIONS

Programmes to reduce the burden of common mental disorder in women should target poorer women, women with chronic physical illness and who have gynaecological symptoms, and women who use tobacco.