Objectives The primary objectives of this study are to assess whether impaired sexual health is more prevalent in individuals with COPD compared to those without COPD and to explore its impact on well-being and health-related quality of life. Additionally, the study aims to comprehend the impact of COPD on sexual health by investigating potential associations among selected physical, psychological, and social factors related to sexual health. This understanding is crucial for guiding future studies on identified associations.
The study will examine the following assumptions:
1. Impaired sexual health, characterized by a higher prevalence of sexual dysfunction, dissatisfaction, and distress, is more frequent in individuals with COPD than in a control group (individuals without COPD, matched by age, gender, and relationship status).
2. COPD has a comprehensive impact on both physical, psychological, and social aspects of sexual health. Impaired sexual health is associated with increased loneliness, relationship dissatisfaction, anxiety and/or depression, as well as decreased health-related quality of life and overall well-being.
Method and materials This study adopts a cross-sectional design, utilizing a patient-reported questionnaire to collect data. The participant pool will encompass individuals aged 40 years or older, including those with COPD and a control group without COPD. The control group will be matched to the COPD sample based on age, gender, and relationship status, enhancing the precision of the exploration of COPD-specific challenges. All participants will be invited to complete a public online questionnaire, with all participants providing electronic informed consent before survey completion.
To explore the impact of COPD on sexual health, including COPD-specific factors, and to assess the perceived effect on quality of life, the questionnaire incorporates various validated instruments. Each instrument will measure a specific aspects related to the physical, psychological, or social dimension of sexual health. Sexual dysfunction and sexual health will be assessed using The PROMIS Sexual Function and Satisfaction Measures (Brief Profile), while emotions and concerns related to sexuality will be identified through The Sexual Distress Scale. Relationship dissatisfaction will be assessed using The Couples Satisfaction Index, loneliness through the UCLA Loneliness Scale, and anxiety/depression via the Hospital Anxiety and Depression Scale. Well-being will be evaluated using the EQ-5D-5L. Individuals with COPD will provide additional insights into the impact of COPD on health through the COPD Assessment Test.
Based on a power calculation (two-sided; p\<0.05; power=95%) (26), the study's exploratory approach, and the number of variables, a sample size of minimum 200 participants per group is deemed sufficient to identify associations.
Descriptive statistics, including means, standard deviations, and frequencies, will be employed to report the prevalence of sexual health and summarize data related to COPD-specific challenges. Correlation coefficients will be calculated, and multiple regression analyses will be conducted to identify associations between variables, adjusting for potential confounders. STATA will be used for data analysis. The study results will be reported in accordance with the STROBE guidelines (22).
