Increasing Evidence for Gender Differences in Chronic Obstructive Pulmonary Disease

Gender difference on the mediation effects of filial piety on the association between chronic obstructive pulmonary disease and depressive symptoms in older adults: A community-based study

Filial piety is viewed as strong family support for older Chinese people, and strongly associated with depressive symptoms. It is unknown if there exists gender difference in the mediation effects of filial piety on the relationship between chronic obstructive pulmonary disease (manifested as lung function) and depression. We investigated whether filial piety mediates the association between lung function and depression in community-dwelling older men and women using the Healthy Aging Longitudinal Study in Taiwan (HALST). Community dwelling adults aged 65 and above were analyzed. Pulmonary function, depressive symptoms, and filial piety expectation (FPE) and receipt of filial piety (RFP) were collected. The interaction and mediation of filial piety between lung function and depression was analyzed. We found that in older men, forced expiratory volume in the first second (FEV1) was inversely correlated with depression (β = -0.1281, p = 0.004) with no mediation effect of FPE. In older women, FEV1 was negatively associated with FPE, but FPE did not increase the risk of depression (β = 0.0605, p = 0.12). In both older men and women, FEV1 was negatively associated with RFP, while RFP reduced the risk of depression (p< 0.001). In older women, the correlation between FEV1 was complete mediation of RFP. Results indicate that feelings of insufficient filial piety may increase the likelihood of depression, especially in elderly women with worse lung function. Although modest, the main mediation effect of filial piety was improvement of lung function in older subjects, which might decrease depression.

Palliative Care Interventions in Advanced Chronic Obstructive Pulmonary Disease: An Integrative Review

Background: Chronic obstructive pulmonary disease (COPD), the sixth leading cause of death in the United States, is associated with higher mortality rates in women. Women also experience tremendous symptom burden, including dyspnea, anxiety, and depression, in comparison to men with COPD. Palliative care (PC) provides symptom management and addresses advanced care planning for serious illness, but little is known about the use of PC in women with COPD. Objective: The purpose of this integrative review was to identify known PC interventions in advanced COPD and to understand the problem of gender and sex disparities. Methods: Whittemore and Knafl's methodology and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses were used to guide this integrative review, and the quality of the articles was appraised using the Mixed Methods Appraisal Tool2018 version. A database search was conducted in PubMed, SCOPUS, ProQuest, and CINAHL complete between 2009 and 2021. Results: Application of search terms yielded 1005 articles. After screening 877 articles, 124 met inclusion criteria, resulting in a final sample of 15 articles. Study characteristics were evaluated for common concepts and synthesized using the Theory of Unpleasant Symptoms influencing factors (physiological, situational, and performance). All 15 studies discussed PC interventions with the focus on dyspnea management or improvement in quality of life. None of the studies identified in this review focused specifically on women with advanced COPD receiving PC, despite the significant impact that this illness has on women. Conclusion: It remains unknown if any intervention is more beneficial than another for women with advanced COPD. Future research is needed to provide an understanding of the unmet PC needs of women with advanced COPD.

The Perception of Physicians on Gender-Specific Differences in the Diagnosis of COPD: Results from a Questionnaire-Based Survey

Objective

To evaluate the perception of physicians on gender-specific differences in the diagnosis of chronic obstructive pulmonary disease (COPD) using a qualitative and anonymous questionnaire-based survey.

Methods

The survey was conducted amongst respiratory physicians attending a standalone educational conference (29-30 September 2017) using the SpotMe® App. The 20-item standardized closed questionnaire had pre-coded responses to questions on physician's profile, and perception of COPD diagnosis and existing comorbidities between genders. All the responses were recorded anonymously.

Results

Of 368 physicians who downloaded the SpotMe® App and had access to the survey, 132 (35.9%) completed the survey. Respondents were predominantly hospital-based (57.3%), aged 30-49 years (54.2%), male (56.5%), and from large cities (59.5%). 68.7% of physicians perceived the prevalence of COPD to be higher in men; over 50% of physicians perceived that women were more prone to the effects of smoking. More than 60% of physicians agreed that women experience more severe symptoms (anxiety and depression) and have reduced quality of life than men. Over 50% of physicians agreed that misdiagnosis/underdiagnosis of COPD in women was an important factor for gender-differences.

Conclusion

Results from this survey indicate that the understanding of COPD burden in women varies among healthcare professionals.

Gender differences in COPD management in a Sicilian general practice setting: a cohort study evaluating the impact of educational interventions

Aim

The aim of this study was to measure gender differences among COPD patients' quality of care (QOC) before and after two educational interventions in Southern Italy.

Methods

In this prospective cohort study, COPD patients were identified from primary care electronic medical records (EMRs). Twelve process indicators concerning diagnosis, preventative measures and therapeutic processes were developed as a measure of QOC. Educational interventions consisted of clinical seminars and audits on COPD QOC at baseline, and at 12 and 24 months. QOC indicators were stratified by gender: odds ratios (ORs) (males as reference group) of having a good QOC indicator were calculated at baseline, 12 and 24 months, with 95% confidence intervals (CIs) using hierarchical generalised linear models.

Results

Of 46 326 people registered in the EMRs, 1463 COPD patients (3.1%) were identified, of which 37% were women. QOC indicators reflecting best practice 24 months after the educational programme were generally not different to baseline, often favouring men. On the other hand, the composite global QOC indicator suggested that while a good overall QOC at baseline was significantly higher in men than women (OR: 0.74; 95% CI: 0.57–0.96), it became nonsignificant at 24 months (OR: 0.96; 95% CI: 0.72–1.29).

Conclusions

Specific QOC indicators among COPD patients often favoured men. However, several gender disparities seen at baseline disappeared at 24 months, suggesting that even general educational interventions which do not target gender can improve the gender disparity in QOC.

This observational study shows that quality of care (QOC) is better among male COPD patients in primary care. Planned educational interventions over 24 months abolished gender difference in global QOC, although not in all QOC items.https://bit.ly/3cfwPST

Differences in COPD Exacerbation Risk Between Women and Men: Analysis From the UK Clinical Practice Research Datalink Data

BACKGROUND

Historically, COPD has been considered to affect mostly older men with a history of smoking; however, in recent times, its prevalence and mortality rates have steadily increased among women.

OBJECTIVES

The goal of this study was to systematically assess differences in COPD expression between women and men in UK primary care clinics who were newly diagnosed with COPD.

METHODS

This retrospective cohort study compared women and men with an incident diagnosis of COPD by using electronic medical records data from the Clinical Practice Research Datalink and linked Hospital Episode Statistics data. The overall study period was between January 1, 2006, and February 28, 2016; patients with an incident diagnosis of COPD between January 1, 2010, and February 28, 2015, were analyzed.

RESULTS

A cohort of 22,429 patients were identified as incident patients and included in the study; 48% of patients with COPD were women. The risk of first moderate or severe exacerbation was 17% greater in women than in men (hazard ratio, 1.17; 95% CI, 1.12-1.23), with a median time to first exacerbation of 504 days for women and 637 days for men. These differences were more prominent in the younger age group (≥ 40 years to < 65 years), as well as in Global Initiative for Chronic Obstructive Lung Disease 2016 groups B, C, and D and in individuals with moderate to severe airflow obstruction. The annual rate of moderate or severe exacerbations was higher in women compared with men in the first, second, and third year of follow-up.

CONCLUSIONS

These results highlight the unmet need for appropriate identification and management of women with COPD in clinical practice.

Sex-related differences in management of Swedish patients with a clinical diagnosis of chronic obstructive pulmonary disease

Purpose: Women with chronic obstructive pulmonary disease (COPD) have more symptoms, more exacerbations, lower health status scores, and more comorbidity. However, it is unclear whether management of COPD differs by sex. The aim of the study was to investigate differences by sex in the care of patients with COPD.

Patients and methods: The population included 1329 primary and secondary care patients with a doctor´s diagnosis of COPD in central Sweden. Data were obtained from patient questionnaires and included patient characteristics and data on achieved COPD care. Analyses included cross-tabulations, chi-squared test and multiple logistic regression using several measures in COPD management as dependent variables, female sex as independent variable, and with adjustment for age groups, previous exacerbations, COPD Assessment Test, level of dyspnea assessed by the modified Medical Research Council scale, comorbid conditions, self-rated moderate/severe disease, level of education and body mass index.

Results: Women were more likely to receive triple therapy (OR 1.86 (95% CI 1.38–2.51)), to have any maintenance treatment (OR 1.82 (95% CI 1.31–2.55)), to be on sick leave (OR 2.16 (95% CI 1.19–3.93)), to have received smoking cessation support (OR 1.80 (95% CI 1.18–2.75)) and to have had pneumococcal vaccination (OR 1.82 (95% CI 1.37–2.43)), all independently of age, severity of disease or other potential confounders.

Conclusion: Management of COPD differs by sex, with women being more actively managed than men. It is unclear whether this is due to patient- or care-related factors.

CT-Guided Percutaneous Transthoracic Needle Biopsy Using the Additional Laser Guidance System by a Pulmonologist with 2 Years of Experience in CT-Guided Percutaneous Transthoracic Needle Biopsy

BACKGROUND

We developed an additional laser guidance system to improve the efficacy and safety of conventional computed tomography (CT)-guided percutaneous transthoracic needle biopsy (PTNB), and we conducted this study to evaluate the efficacy and safety of our system.

METHODS

We retrospectively analyzed the medical records of 244 patients who underwent CT-guided PTNB using our additional laser guidance system from July 1, 2015, to January 20, 2016.

RESULTS

There were nine false-negative results among the 238 total cases. The sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of our system for diagnosing malignancy were 94.4% (152/161), 100% (77/77), 100% (152/152), 89.5% (77/86), and 96.2% (229/238), respectively. The results of univariate analysis showed that the risk factors for a false-negative result were male sex (p=0.029), a final diagnosis of malignancy (p=0.033), a lesion in the lower lobe (p=0.035), shorter distance from the skin to the target lesion (p=0.003), and shorter distance from the pleura to the target lesion (p=0.006). The overall complication rate was 30.5% (74/243). Pneumothorax, hemoptysis, and hemothorax occurred in 21.8% (53/243), 9.1% (22/243), and 1.6% (4/243) of cases, respectively.

CONCLUSION

The additional laser guidance system might be a highly economical and efficient method to improve the diagnostic efficacy and safety of conventional CT-guided PTNB even if performed by inexperienced pulmonologists.

Treatment and outcome of non-tuberculous mycobacterial pulmonary disease in a predominantly fibro-cavitary disease cohort

BACKGROUND

The incidence of non-tuberculous mycobacterial pulmonary disease (NTM-PD) has increased in the Netherlands. The fibro-cavitary disease manifestation predominates, as elsewhere in Europe. We studied treatment and outcome of this disease manifestation, as such data are scarce.

METHODS

We conducted a retrospective study of all patients diagnosed with NTM-PD according to the American Thoracic Society statement between 2008 and 2013 in a reference clinic.

RESULTS

Sixty-three patients were included. Thirty-two (51%) were females and mean age was 60.8 years. Most patients had underlying COPD (73%). M. avium complex pulmonary disease (MAC-PD) was most frequent (n = 38, 60.3%), followed by M. malmoense (n = 7) and M. kansasii (n = 6). Twenty-two patients had fibro-cavitary MAC-PD, 14 had nodular-bronchiectatic MAC-PD and 2 had other manifestations. Thirty-two (94%) patients treated for MAC-PD received a rifamycin-ethambutol-macrolide based regimen. Microbiological cure rates were lower for fibro-cavitary (52.4%) than for nodular bronchiectatic MAC-PD (100%; p = 0.03). Sixty-nine percent of treated patients experienced adverse events, most frequently gastrointestinal discomforts (71%), tinnitus (18%), hearing impairment (16%) and hepatotoxicity (18%).

CONCLUSIONS

Fibro-cavitary NTM-PD remains predominant, but is now diagnosed more frequently in women. Fibro-cavitary disease is harder to cure than nodular-bronchiectatic disease. Adverse events are frequent and can necessitate cessation of treatment.

A qualitative study of women's experiences of living with COPD

Aim

To explore women's experiences of living with chronic obstructive pulmonary disease (COPD) at home.

Design

An explorative and descriptive qualitative design.

Methods

A consecutive sample of nine women with COPD living at home. Data were collected in 2014 using semi‐structured interviews and analysed using a qualitative content analysis.

Results

Three main themes were identified: having a good life with COPD despite limitations; predictability and confidence in getting help; and the struggle to achieve a balance between insight and compliance with management of COPD. These women experienced limitations related to the traditional female role and felt unable to fulfil their own expectations. They experienced a good life despite limitations arising from adaptation and coping strategies. To feel safe, they needed to feel confident that they would receive the necessary help in case of exacerbation of their disease. To enhance compliance with COPD management, the women wanted education that provided specific suggestions.

Underdiagnosis of chronic obstructive pulmonary disease in women: quantification of the problem, determinants and proposed actions

INTRODUCTION

The distribution of chronic obstructive pulmonary disease (COPD) in women, and its underdiagnosis and determinants in the general population, have not been well described. The EPI-SCAN study is an epidemiologic, observational study conducted at 11 Spanish centers on the general population aged 40 to 80.

PATIENTS AND METHOD

This paper describes the rates and extrapolates the population burden from the 3,802 participants of the EPI-SCAN study.

RESULTS

With 2,005 female and 1,797 male participants, there was a lower prevalence of COPD in women (5.7%; 95%CI, 4.7-6.7) than in men (15.1%; 95%CI, 13.5-16.8; P<.05). Among the 386 participants with COPD, 114 (29.5%) were women, who were younger, currently smoked less and had lower tobacco smoke exposure, while reporting a lower level of education (P<.05). As for the respiratory symptoms, there were no differences between sexes for cough, dyspnea or wheezing, but the women with COPD reported sputum less frequently (P<.05). There were no differences in the spirometric severity of COPD between women and men. Overall, 73% of the patients with a spirometric COPD criteria were underdiagnosed, and this percentage is unevenly distributed by sex, being 1.27 times more frequent in women (86.0%) than in men (67.6%) (P<.05). By extrapolating the rates of prevalence and underdiagnosis of COPD to the general population, we estimate that there are 628,102 Spanish women between the ages of 40 and 80 with COPD, 540,168 of whom still have not been diagnosed.

CONCLUSIONS

There is a greater underdiagnosis of COPD in women than in men in Spain.

The prevalence of undiagnosed chronic obstructive pulmonary disease in a primary care population with respiratory tract infections - a case finding study

Background

Chronic obstructive pulmonary disease (COPD) is an underdiagnosed cause of morbidity and mortality worldwide. Prevalence of COPD has been shown to be highly associated with positive smoking history and increasing age. Spirometry is the method used for diagnosing COPD. However, identifying patients at risk of COPD to undergo spirometry tests has been challenging. Therefore, there is a need for new cost-effective and feasible diagnostic screening procedures for use in primary care centers. Our aim was to describe the prevalence and severity of undiagnosed COPD in a group of patients with respiratory infections attending urgent primary care, and to identify those variables in patients' history that could be used to detect the disease.

Methods

Patients of 40-75 years (n = 138) attending urgent primary care center with acute respiratory tract infection, positive smoking history and no previously known pulmonary disease underwent pre- and post bronchodilator spirometry testing four to five weeks after the acute infection. Prevalence and severity of COPD were estimated following the Global Initiative for COPD (GOLD) criteria. Variables such as sex, age, current smoking status, smoking intensity (pack years) and type of infection diagnosis were assessed for possible associations with COPD.

Results

The prevalence of previously undiagnosed COPD in our study group was 27%, of which 45% were in stage 1 (FEV1 ≥ 80% of predicted), 53% in stage 2 (50 ≤ FEV1 < 80% of predicted), 3% in stage 3 (30 ≤ FEV1 < 50% of predicted) and 0% in stage 4 (FEV1 < 30% of predicted). We found a significant association between COPD and age ≥ 55 (OR = 10.9 [95% CI 3.8-30.1]) and between COPD and smoking intensity (pack years > 20) (OR = 3.2 [95% CI 1.2-8.5]). Sex, current smoking status and type of infection diagnosis were not shown to be significantly associated with COPD.

Conclusion

A middle-aged or older patient with any type of common respiratory tract infection, positive smoking history and no previously known pulmonary disease has an increased likelihood of having underlying COPD. These patients should be offered spirometry testing for diagnosis of COPD.

Changes in mortality among US adults with COPD in two national cohorts recruited from 1971-1975 and 1988-1994

BACKGROUND

COPD is a major contributor to the global burden of disease. Our objective was to examine changes in the mortality rate among persons with COPD in the United States.

METHODS

We conducted prospective studies using data from 5,185 participants in the National Health and Nutrition Examination Survey (NHANES) I Epidemiologic Follow-up Study (baseline examination from 1971-1975; follow-up from 1992-1993) and 10,954 participants of the NHANES III Linked Mortality Study (baseline examination from 1988-1994; follow-up through 2006).

RESULTS

The age-adjusted rate (per 1,000 person-years) among participants with moderate or severe COPD (23.9 and 20.2) was about 2.5 to 3 times higher than the rate among participants with normal lung function (10.4 and 6.2) in NHANES I and NHANES III, respectively. Compared with NHANES I, the mortality rate among participants in NHANES III decreased by 15.8% for those with moderate or severe COPD, 25.2% for those with mild COPD, 35.9% for those with respiratory symptoms with normal lung function, 16.6% for those with restrictive impairment, and 40.1% for those with normal lung function. However, the decrease did not reach statistical significance among participants with moderate or severe COPD. The decreases in the mortality rate among men with moderate or severe COPD (-17.8%) or with restrictive impairment (-35.1%) exceeded the changes among women (+3% and -6.1%, respectively).

CONCLUSIONS

The secular decline in the mortality rate in the United States benefited people with COPD less than those with normal lung function.