Risk of depression and anxiety in 7.302 patients with sarcoidosis: a nationwide cohort study.

BACKGROUND AND AIM: The aim was to investigate the association between sarcoidosis and anxiety and/or depression (A/D) in patients with sarcoidosis and comparators matched on age, gender, residency, and cohabitation status. METHODS: Patients with newly diagnosed sarcoidosis between 2001 and 2015 were identified in the Danish National Patient Register. Cases were matched 1:4 with non-sarcoidosis comparators. We estimated the cumulative incidence of A/D using the Cumulative Incidence Function and the subdistribution hazard ratio (sHR) for A/D using the Fine-Gray subdistribution hazard model. Estimates were adjusted for socio-economic status and Deyo-Charlson Comorbidity Index. RESULTS: We identified 7.302 cases and 26.145 matched comparators. The cumulative incidence of A/D after five years was 6.0% (95%CI 5.5-6.4) for cases and 4.2% (95%CI 4.0-4.4) for matched comparators. The cumulative incidence was higher among cases for both males and females and in all age-groups compared with the matched comparators. The adjusted-sHR for A/D was 1.38 (95%CI 1.24-1.53). The adjusted-sHR for A/D was 1.51 (95%CI 1.30-1.75) for male cases and 1.25 (95%CI 1.08-1.45) for female cases compared with the matched comparators. The adjusted-sHR for A/D was higher for cases in all age-groups compared with the matched comparators, although not statistically significant among cases aged 30-39 years (a-sHR 1.15; 95%CI 0.92-1.44). CONCLUSIONS: Sarcoidosis cases had a higher risk of A/D compared with matched comparators during 18 years of follow-up. The risk of developing A/D was greater for male and female cases and within all age-groups compared with the matched comparators.

Trends in COPD mortality from 1983 to 2018: protocol for a population-based cohort study in Denmark.

INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is one of the leading causes of death worldwide, which is partly contributed to the increasing prevalence of COPD owning to a demographic shift towards an older population. Conversely, recent studies on COPD mortality that take this demographic shift in age into account find decreasing overall age-standardised COPD mortality rates over time. This decrease in the age-standardised COPD mortality rate is contributed advances in COPD diagnostics and treatment, decreasing smoking prevalence and general advances in medical care particularly in western countries. However, it is unknown if patients with COPD have experienced a comparable relative increase in survival in line with the general population.Hence, there is a need for longitudinal studies comparing trends in mortality in patients with COPD compared with matched non-COPD individuals from the background population. METHODS AND ANALYSES: This is a cohort study with a matched non-COPD comparator cohort. Data are retrieved from the Danish national registers. Data from multiple registries from 1983 to 2018 will be merged on an individual level using the 10-digit Civil Registration numbers that are unique to each citizen in Denmark. Time trends in mortality in patients with COPD compared with the matched comparator cohort will be examined in three study periods: 1983-1993, 1994-2007 and 2008-2018. ETHICS AND DISSEMINATION: The study is entirely based on registry data and ethical approval is not required according to Danish Law and National Ethics Committee Guidelines. The results will be published in peer-reviewed journals and reported at appropriate national and international conferences.

Cold water swimming as an add-on treatment for depression: a feasibility study.

PURPOSE: Cold water swimming (CWS) involves taking a regular dip in cold, natural waters throughout the winter. The evidence for the health benefits of CWS has been anecdotal, or from small-sample size studies. The available literature reports that CWS abolishes general tiredness, improves mood, boosts self-esteem and improves general well-being. However, research on the effects and safety of CWS as an add-on to the regular treatment of depression is limited. The aim of this study was to investigate whether it is possible and safe for patients with depression to participate in CWS. MATERIAL AND METHODS: The study was designed as an open-label feasibility study. All patients aged 20-69 years with a diagnosis of depression from an outpatient clinic were eligible for inclusion. The intervention consisted of twice-weekly, group-based CWS. RESULTS: Thirteen patients were initially recruited, and five patients participated on a regular basis. Although several patients had somatic comorbidities, all patients passed the somatic evaluation and were physically fit to participate in CWS. Patients who participated regularly in the CWS sessions had a well-being score of 39.2; at the end of the study, their score had increased to 54.0 and PSQI score at baseline was 10.4 (3.7); at the end of the study it was 8.0 ((3.7). CONCLUSION: This study indicates that it is possible and safe for patients with depression to participate in regular, supervised CWS. Furthermore, regular participation in CWS may improve sleep and well-being.

Vaccine effectiveness of the pneumococcal polysaccharide and conjugated vaccines in elderly and high-risk populations in preventing invasive pneumococcal disease: a systematic search and meta-analysis.

BACKGROUND: Invasive pneumococcal disease (IPD) is a major cause of morbidity and mortality globally. However, the literature on the vaccine effectiveness (VE) of 23-valent polysaccharide vaccine (PPV23) and 13-valent conjugated vaccine (PCV13) against IPD in adults is sparse. The aim was to summarize the available evidence on the VE of the PPV23 and the PCV13 in elderly individuals against IPD and to investigate how age and comorbidities influence VE against IPD. METHODS: A systematic search was conducted in Medline and Embase in February 2021. We used combinations of terms related to PPV23, PCV13, elderly, high-risk populations, and IPD. Eligible articles published since 2010 were included. Two authors reviewed and extracted data. RESULTS: Eight studies met the inclusion criteria for PPV23. The meta-analysis showed a reduced OR for all-type IPD with the use of PPV23 vaccine compared with unvaccinated controls (OR 0.69; 95%CI 0.54, 0.88) and a reduced OR for vaccine-type IPD compared with non-vaccine type IPD (0.69; 95%CI 0.63, 0.76). VE against vaccine-type IPD ranged from 28% to 54.1% for individuals aged 65-79 and from 7.5% to 34% for those aged ≥80-85 years. Most studies found a lower VE of PPV23 in populations with comorbidities and in immunocompromised populations compared with the VE for individuals without comorbidities.One study met the inclusion criteria for PCV13. The vaccine efficacy of PCV13 against IPD in individuals aged ≥65 was 75.0% (95% CI, 41.4 to 90.8). CONCLUSION: The results from this review show a reduction of IPD in elderly and high-risk populations vaccinated with PPV23 and PCV13. The protective effect may be lower in elderly individuals aged >80 and in individuals with comorbidities. However, the literature is sparse; large-scale prospective studies are required to evaluate the VE of PPV23 and PCV13 vaccination in adults against IPD.

Parental COPD as a Risk Factor for the Development of COPD and Disease Severity in Offspring: A Systematic Scoping Review.

Background: There is sparse literature on parental chronic obstructive pulmonary disease (COPD) as a risk factor for the development of COPD in adult offspring, and the impact on disease severity. We aimed to map the literature reporting on the prevalence of and/or association between parental COPD and COPD in offspring, and to evaluate whether or not the literature reports on the severity of COPD or other health-related outcomes in offspring with parental COPD. Methods: A systematic literature search in Embase and Ovid MEDLINE was performed in June 2021. Search terms revolved around COPD and predisposition. Results: Thirteen studies were identified: 10 case-control studies, two cross-sectional studies and one cohort study. Population size varied from 44 to 2668 offspring cases; the distribution of female cases varied from 5% to 80% and mean age ranged from 27 to 65. Nine studies used an antecedents approach and evaluated the prevalence of parental COPD in patients with COPD, which ranged from 19% to 58%. Four studies used a descendants approach, by identifying patients with COPD and subsequently evaluated prevalence of COPD in their offspring, and found a prevalence of 0% to 17%. Apart from one, all the studies found an increased odds ratio for COPD in individuals with parental COPD. Four studies reported on parental smoking history and nine studies reported on smoking history in offspring. Three studies evaluated the association between parental COPD and COPD-related outcomes in patients with COPD. Conclusion: This review indicates that parental COPD is associated with a higher risk of COPD in offspring. The literature is sparse, and we identified a knowledge gap on whether parental COPD is a risk factor for severe COPD and other health conditions in offspring.

Direct and indirect costs of systemic sclerosis and associated interstitial lung disease: A nationwide population-based cohort study.

BACKGROUND AND OBJECTIVE: The study aimed to evaluate the direct and indirect costs of systemic sclerosis (SSc) in cases with and without interstitial lung disease (ILD). METHODS: Cases diagnosed with SSc (2002-2015) were identified in the Danish National Patient Registry. Cases were matched 1:4 with non-SSc controls from the general population. Data on costs were obtained from national databases. Excess cost was estimated as the annual cost per case subtracting the costs of the control. RESULTS: We identified 1869 cases and 7463 controls. Total excess cost (direct healthcare, elderly care and indirect costs) in the SSc-ILD cohort was €29,725, and €17,905 in the non-ILD SSc cohort. In- and out-patient contacts and forgone earnings were the key drivers of costs in both cohorts. Healthcare costs were higher before and after the diagnosis compared with the controls. Men incurred higher excess healthcare costs than women. Hospitalization and outpatient services were the key drivers of the gender-associated differences. Income from employment decreased more rapidly after diagnosis in the SSc-ILD cohort than in the non-ILD SSc cohort. Public transfer income increased after diagnosis, with the most pronounced difference in the SSc-ILD cohort. Disability pension was the key driver of public transfer income. CONCLUSION: SSc is associated with a significant individual and societal burden that is evident several years before and after the diagnosis. Total excess costs are higher in SSc-ILD than in the non-ILD SSc underlining the severity of pulmonary involvement. Initiatives to maintain work ability and to reduce hospital admissions may reduce the economic burden of SSc.

Sarcoidosis-related mortality and the impact of corticosteroid treatment: A population-based cohort study.

BACKGROUND AND OBJECTIVE: The aims of this national cohort study were: (1) to evaluate mortality in patients with sarcoidosis, stratified by gender, age and systemic corticosteroid (SC) treatment and (2) to characterize comorbidities in this cohort. METHODS: Patients diagnosed with sarcoidosis from 2001 to 2015 were identified in the Danish National Patient Registry. Subgroup analyses were performed on cases treated/not treated with SCs within 3 years of the initial sarcoidosis diagnosis (as a proxy for disease severity). The Deyo-Charlson Comorbidity Index was used to evaluate pre-diagnostic comorbidity. Cases were matched (1:4) with controls from the general population. RESULTS: We identified 9795 cases with sarcoidosis. Mean age was 46.5 ± 15.9 years and 55% were male. The adjusted hazard ratio (HR) for death was 1.48 (95% CI 1.31-1.68). Mortality was higher than for controls in all age groups and in both genders. HR for death for cases treated with SCs was 1.78 (95% CI 1.49-2.13) and, for cases receiving no treatment, 1.24 (95% CI 1.04-1.48). Sarcoidosis was the most commonly registered cause of death (13.3%). CONCLUSION: Patients with sarcoidosis have an increased mortality compared with matched controls. Mortality is particularly high in patients treated with SCs.

Sarcoidosis: A nationwide registry-based study of incidence, prevalence and diagnostic work-up.

INTRODUCTION: The primary objective was to evaluate the prevalence and incidence of sarcoidosis, and secondly, to evaluate differences in incidence by age at diagnosis, gender, region, calendar year and treatment and to evaluate sarcoidosis-related diagnostic work-up. METHODS: Patients diagnosed with sarcoidosis from 2001 to 2015 and information on diagnostic procedures three months before and after initial diagnosis were identified in the Danish National Patient Register. Incidence proportion and prevalence proportion were calculated using the total population count of Danish citizens. RESULTS: We identified 8545 sarcoidosis cases. Mean age was 46.0 ± 15.0 years, male gender was overrepresented (56.2%) and systemic corticosteroid was initiated in 46% of cases. The prevalence was 77 per 100,000 citizens in 2015. From 2001 to 2015, the incidence varied from 11.3 to 14.8 per 100,000 per year. The age-associated incidence peaked at 30-39 years in both men (23.6 per 100,000 per year) and women (15.0 per 100,000 per year). Incidence varied from 10.4 to 15.7 per 100,000 per year among regions. In particular, the share of bronchoscopies and chest-computed tomography were high in the region with the highest incidence and low in the region with the lowest incidence. Invasive procedures were more frequently performed in patients treated with systemic corticosteroid. CONCLUSION: We find an increasing incidence and prevalence of sarcoidosis, with a peak incidence for both men and women between 30 and 39 years of age. The share of procedures performed seems to correlate well with incidence and disease severity.

Lack of awareness towards smoking-related health risks, symptoms related to COPD, and attitudinal factors concerning smoking: an Internet-based survey conducted in a random sample of the Danish general population.

Background: Although chronic obstructive pulmonary disease (COPD) is one of the leading causes of morbidity and mortality globally, several studies have shown little awareness of COPD in the general population. The awareness of COPD in the Scandinavian countries is, however, sparsely investigated. Objective: The aim of this study was to explore the awareness in the general Danish population of smoking-related health risks and symptoms related to COPD and attitudinal factors concerning smoking. Design: Adults aged 18 years or older were randomly selected to reflect the background population. An Internet-based questionnaire was conducted in January-February 2015. Results: A total of 1002 answered the questionnaire (515 males; 487 females). In total, 17.7% were current smokers (men: 15.5%-women: 19.9%). More smokers and ex-smokers knew the symptoms of COPD compared to never-smokers (p < 0.001). Ex-smokers had undergone more pulmonary function tests than smokers and never-smokers (p < 0.001) and significantly more men than women who had undergone pulmonary function test. Ex-smokers were more likely to rate cancer as the most feared disease (p = 0.026) than the smokers. Of the smokers, 28% did not regard COPD as a deadly disease and significantly more smokers than ex-/never-smokers believed that smoking cessation should not be mandatory before treatment of COPD and asthma (p < 0.001). Conclusion: Overall, smokers, ex-, and never-smokers had little knowledge of COPD regarding aetiology, symptoms, and severity thus emphasizing the necessity of early detection of COPD and more focus on spirometry in general practice, especially amongst smokers. There is a great discrepancy between the attitude of smokers and ex-/never-smokers towards mandatory smoking cessation before receiving treatment of smoking-related diseases. Funding: GlaxoSmithKline Pharma A/S Brøndby, financially supported the collecting of data by Voxmeter A/S. The authors had full access to the raw data and did not receive any financially support.

The influence of psychiatric disorders on the course of lung cancer, chronic obstructive pulmonary disease and tuberculosis.

BACKGROUND: This Danish study evaluated the association between psychiatric comorbidity and the course of chronic obstructive pulmonary disease (COPD), lung cancer and tuberculosis (TB) of an entire nation. METHODS: Data from the Danish National Patient Registry (1998-2009), material status, gender, educational level, comorbidities, age at diagnosis and death, medication, and causes of death were extracted from national databases. We identified 71,874 patients with COPD and found 32,282 with a pre-index psychiatric comorbidity, 20,787 patients with lung cancer and found 8406 with a pre-index psychiatric comorbidity, and 3495 patients with TB and found 797 with a pre-index psychiatric morbidity. Within the three groups we compared the patients with/without a pre-index psychiatric comorbidity. RESULTS: We found a reduced survival in patients with COPD or TB and a pre-existing psychiatric comorbidity. For all three pulmonary diseases, we found significantly higher age (p < .001) at time of diagnosis, higher Deyo-Charlson Comorbidity Index (p < .001), and an overrepresentation of singles (p < .001) in patients with a psychiatric comorbidity. COPD and lung cancer patients with a psychiatric comorbidity were significantly overrepresented by women (p < .001). Patients with COPD and a psychiatric comorbidity died most frequently of lung cancer (24%). Advancing age and Deyo-Charlson index were associated with a higher mortality rate whereas being a woman and married/co-habiting yielded a lower mortality rate for patients with a psychiatric comorbidity. CONCLUSION: To our knowledge, this is the first epidemiological study investigating the influence of a psychiatric comorbidity on the course of COPD, lung cancer and TB at a national level. Our results emphasize the importance of detecting these major respiratory diseases in patients with psychiatric comorbidities and intensifying the treatment and follow up of these patients.