Understanding the Association Between Chronic Obstructive Pulmonary Disease and Current Anxiety: A Population-Based...

Area of Science:

• Public Health
• Psychiatry
• Epidemiology

Background:

• Chronic Obstructive Pulmonary Disease (COPD) is a prevalent respiratory condition with significant public health implications.
• Generalized Anxiety Disorder (GAD) is a common mental health condition that can co-occur with chronic diseases.
• Understanding the relationship between COPD and GAD is crucial for comprehensive patient care.

Purpose of the Study:

• To investigate the independent association between COPD and past-year GAD in a Canadian population-based sample.
• To identify correlates of GAD specifically among individuals diagnosed with COPD.
• To inform targeted screening and intervention strategies for this patient group.

Main Methods:

• Logistic regression analyses were performed on data from 11,163 Canadian adults aged 50+ from the 2012 Canadian Community Health Survey-Mental Health.
• The study examined the attenuation of the COPD-GAD association by socio-demographic factors, social support, health behaviors, sleep, pain, functional limitations, and early adversities.
• Further analyses focused on a sub-sample of 746 individuals with COPD to identify GAD predictors.

Main Results:

• Past-year GAD prevalence was 5.8% in older adults with COPD versus 1.7% without (p < .001).
• Age-sex-race adjusted odds of GAD were nearly four times higher for those with COPD (OR = 3.90).
• After full adjustment for 18 characteristics, the odds of GAD remained significantly elevated for COPD patients (OR = 1.72).
• Key predictors of GAD among COPD patients included lack of a confidant, exposure to parental domestic violence, and lifetime depressive disorders.

Conclusions:

• COPD is independently associated with substantially higher odds of GAD, even when controlling for numerous known risk factors.
• Factors such as social isolation, adverse childhood experiences, and co-occurring depression are significant correlates of GAD in COPD patients.
• Findings underscore the need for integrated care, targeted screening for GAD in COPD populations, and attention to pain and functional limitations.