The Impact of Caregiver Depression on Child Asthma Outcomes: Pathways and Mechanisms

Research Trends and Hotspots on Asthma and Depression: A Bibliometric Analysis

Purpose

Asthma and depression are prevalent conditions with significant comorbidity, impacting patients' quality of life. This bibliometric study aims to analyze research trends and hotspots in the field from 2000 to 2023, identifying key contributions and predicting future directions.

Methods

We conducted a systematic search in the Web of Science Core Collection (WoSCC) for articles on asthma and depression, published between 2000 and 2023. Bibliometrics, which involves the application of mathematical and statistical methods to analyze scholarly literature, was employed in this study to systematically assess the research trends and hotspots in the field of asthma and depression. VOSviewer and CiteSpace software were utilized for visual analysis and data visualization, enabling us to map collaboration networks and identify research hotspots and trends within the asthma and depression literature.

Results

Our analysis retrieved 3067 papers from 937 journals, involving 14,631 authors and 4006 institutions across 106 countries. The United States, Columbia University, the Journal of Asthma, and Christer Janson were the most prolific contributors. Six primary research themes emerged: quality of life, childhood asthma, primary care, substance P, intervention, and emotion. Additionally, Burst detection analysis identified emerging topics, including severe asthma, other respiratory diseases, and oxidative stress.

Conclusion

This bibliometric analysis has revealed significant insights into the research trends and hotspots in the field of asthma and depression. The primary findings indicate a growing body of research highlighting the impact of depression on asthma control and patients' quality of life, the need for psychological interventions in treating comorbid asthma and depression, and the emerging focus on severe asthma and oxidative stress mechanisms. These findings underscore the importance of continued research in these areas to advance our understanding and improve clinical outcomes for patients with these comorbid conditions.

Mediation analysis of cognitive function in the relationship between pulmonary function and depression among middle-aged and older adults

AIM

This study aims to explore the association between declining lung function and depression in middle-aged and older adults, with a special focus on the mediating role of cognitive function.

METHODS

This study utilizes self-reported and physical examination data from 5345 individuals participating in the 2015 cycle of the China Health and Retirement Longitudinal Study (CHARLS) to explore the role of cognitive function changes in mediating the effects of diminished lung function on depression among middle-aged and older adults.

RESULTS

Multivariate linear regression analysis revealed a positive correlation between pulmonary and cognitive functions (β = 0.003, 95% CI: 0.002∼0.003, P < 0.01) and a negative correlation between cognitive function and depression (β = -0.279, 95% CI: -0.330-0.228, P < 0.01). Cognitive function plays a mediating role in linking pulmonary function with depression, exhibiting a mediation effect of -0.0007 and a total effect of -0.0046, wherein the mediation effect contributes to 15.22% of the total effect. For females, the mediating effect of cognitive function was stronger (β = -0.0013, 95% CI: -0.0018∼-0.0008, P < 0.01) than it was for males (β = -0.0006, 95% CI: -0.0009∼-0.0003, P < 0.01).

CONCLUSIONS

The study underscores the importance of monitoring lung and cognitive functions as interconnected factors contributing to the mental health of middle-aged and older adults. It suggests that interventions aimed at improving pulmonary health and cognitive function may help mitigate depressive symptoms among middle-aged and older adults. Further research is warranted to validate these findings across diverse cultural and demographic settings. Geriatr Gerontol Int 2024; 24: 1210-1217.

Contribution of caregiver and child anxiety and depressive symptoms to child asthma-related quality of life

BACKGROUND

Depression and anxiety negatively affect asthma-related quality of life (QoL). Yet, little is known regarding mood and asthma-related factors that best uniquely explain asthma-related QoL in children.

OBJECTIVE

This cross-sectional study evaluated the unique variance explained by caregiver and child depressive and anxiety symptom severity in child asthma-related QoL, apart from that explained by demographics and asthma control.

METHODS

Children aged 7 to 17 years with asthma (n = 205) and their caregivers with major depressive disorder were included. A 3-stage hierarchical linear regression analysis was conducted with the Pediatric Asthma Quality of Life Questionnaire total scores considered as the outcome. Predictors included demographic characteristics (stage 1); asthma control assessed by the Asthma Control Test (stage 2); and caregiver depression and anxiety (Hamilton Rating Scale for Depression and the Spielberger State/Trait Anxiety Scale) and child depression and anxiety (Children's Depression Inventory and the Screen for Child Anxiety-Related Disorders) (stage 3).

RESULTS

Demographic characteristics accounted for only 5.5% of the Pediatric Asthma Quality of Life Questionnaire scores. Asthma control significantly increased variance explained in QoL to 32.6%, whereas caregiver and child depression and anxiety symptoms significantly increased variance explained to 42.6%. Child anxiety was found to uniquely explain the largest proportion of variance in QoL (rs2 = 0.584).

CONCLUSION

After adjusting variance in QoL for demographic characteristics and asthma control, caregiver and child depression and anxiety measures significantly increased the proportion of variance explained in a child's asthma-related QoL. In addition to better asthma control, child and caregiver depression and anxiety should be addressed to increase child asthma-related QoL.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT02809677.

Implementation of caregiver depression screening in an urban, community-based asthma clinic: a quality improvement project

OBJECTIVE

Caregiver depressive symptoms are prevalent among children with asthma and associated with greater asthma morbidity. Identifying caregivers with depression and connecting them to appropriate treatment may reduce child asthma morbidity. The goal of this project was to implement a workflow for caregiver depression screening and treatment referral in an urban, community-based, asthma clinic serving under-resourced children.

METHODS

The Model for Improvement with weekly Plan-Do-Study-Act cycles was utilized. A two-item depression screening tool (Patient Health Questionnaire-2; PHQ-2) and an acceptability question using a 5-point Likert scale were added to an existing social needs screening checklist administered to all caregivers during the child's clinic visit. Caregivers with a positive PHQ-2 score (≥3) received the PHQ-9. Positive screens on the PHQ-9 (≥5) received information and referrals by level of risk. PHQ-9 positive caregivers received a follow-up phone call two weeks post-visit to assess connection to support, improvement in depressive symptoms, and satisfaction with resources provided.

RESULTS

The PHQ-2 was completed by 84.4% of caregivers (233/276). Caregivers had a mean age of 33.8 years (SD = 8.3; Range: 18-68) and were predominately female (86.4%), Black (80.4%), and non-Hispanic (78.4%). The majority (72.3%) found the screening acceptable (agree/strongly agree). Nearly one in six caregivers (37/233, 15.9%) reported depressive symptoms (PHQ-2 ≥ 3); 11.6% (27/233) had clinically significant symptoms (PHQ-9 score ≥ 10); and 2.1% (5/233) reported suicidal thoughts. Of those with depressive symptoms, 70.3% (26/37) participated in the follow-up phone call. While 50% (13/26) reported the resources given in clinic were "extremely helpful," no caregivers contacted or used them.

CONCLUSIONS

Caregiver depression screening was successfully integrated into a pediatric asthma clinic serving under-resourced children. While caregivers found screening to be acceptable, it did not facilitate short-term connection to treatment among those with depressive symptoms.

Brain response in asthma: the role of "lung-brain" axis mediated by neuroimmune crosstalk

In addition to typical respiratory symptoms, patients with asthma are frequently accompanied by cognitive decline, mood disorders (anxiety and depression), sleep disorders, olfactory disorders, and other brain response manifestations, all of which worsen asthma symptoms, form a vicious cycle, and exacerbate the burden on families and society. Therefore, studying the mechanism of neurological symptoms in patients with asthma is necessary to identify the appropriate preventative and therapeutic measures. In order to provide a comprehensive reference for related research, we compiled the pertinent literature, systematically summarized the latest research progress of asthma and its brain response, and attempted to reveal the possible "lung-brain" crosstalk mechanism and treatment methods at the onset of asthma, which will promote more related research to provide asthmatic patients with neurological symptoms new hope.

Childhood Asthma and Parental Antidepressant Use in a Nationwide Danish Cohort

Background

Paediatric asthma is associated with caregiver depression, which in turn is associated with poor asthma control. Although sociodemographic risk factors are associated with parental depression among children with asthma, the contribution of these factors to caregiver depression in free-to-access universal healthcare settings is unknown.

Methods

The association between childhood asthma and parental antidepressant use was investigated in a Danish nationwide cohort of children aged 2-17 years that redeemed inhaled corticosteroids in 2015. The odds of antidepressant use were estimated in comparison to control families that were matched 1:1 on the number of siblings, residence, income, and education.

Results

Among the families of 28,595 children with actively treated asthma, 12% of mothers and 6.2% of fathers were on antidepressant therapy, compared to 9.3% and 5.3% in controls (p<0.001). Paediatric asthma was associated with increased odds of parental antidepressant use (OR 1.29 (1.23-1.35)), even after adjusting for parental asthma. Poor asthma control, but not higher asthma severity, was associated with higher odds of antidepressant use (1.43 (1.31-1.56)). Compared with the controls, families with two or more children with asthma had higher OR (1.42 (1.29-1.56)) than those with a single child (OR 1.27 (1.21-1.34)). Low socioeconomic status was associated with parental antidepressant use.

Conclusion

Caregiver depression in a Danish cohort is more prevalent among mothers than among fathers and is associated with poor asthma control in children. Antidepressant use among caregivers was associated with total family asthma burden and was independent of socioeconomic status.