Social support is a strong determinant of life satisfaction among older adults with chronic obstructive pulmonary disease.

Older adults with chronic obstructive pulmonary disease (COPD) are frequently compromised in terms of social life and functional capacity, triggering reduced in life satisfaction (LS). We investigated the level of LS among elderly patients with COPD and factors associated with LS. This was a prospective cross-sectional survey enroling a sample of 160 COPD subjects aged 65 y or older. At enrolment, all patients completed measures of LS (the Satisfaction with Life Scale; SWLS) and social support (Personal Resource Questionnaire; PRQ). The health-related quality of life (HRQL) was measured using St. George's Respiratory Questionnaire (SGRQ) and 36-item Short-Form Health Survey (SF-36). Anxiety and depression were assessed using the Hospital Anxiety and Depression Scale (HADS). About 30.6% of the patients reported that they were satisfied or highly satisfied with their lives. In univariate analysis, post-bronchodilator FEV1, percentage predicted was significantly associated with SWLS score (r = 0.205, P = .009). Age (r = 0.207), diabetes (r = 0.209), osteoporosis (r = -0.190), PRQ (r = 0.388), SGRQ total (r = -0.291), SF-36 PCS (r = 0.233), SF-36 MCS (r = 0.274), HADS-A (r = -0.291) and HADS-D (r = -0.352) were also associated with SWLS score (all P < .05). Multivariate analysis revealed that FEV1 (r = 0.223, P = .04) and PRQ (r = .244, P = .002) were independently associated with SWLS score. Less than one-third of older adults with COPD reported that they were satisfied with their lives. Better lung function and greater social support were independently associated with high LS.

Lee SH ，Lee H ，Kim YS ，Park HK ，Lee MK ，Kim KU ... -  《-》

Predictors of Low-Level Disease-Specific Knowledge in Patients with Chronic Obstructive Pulmonary Disease.

Disease-specific knowledge is associated with outcomes of patients, but the knowledge level of chronic obstructive pulmonary disease (COPD) patients is known to be low. We measured the level of disease-specific knowledge and defined factors associated with poor disease knowledge in COPD patients. A cross-sectional survey was performed in five hospitals in South Korea. At enrolment, all patients completed the Bristol COPD Knowledge Questionnaire (BCKQ), Satisfaction with Life Scale (SWLS), Personal Resource Questionnaire (PRQ), St. George's Respiratory Questionnaire (SGRQ), 36-item Short-Form Health Survey (SF-36), and the Hospital Anxiety and Depression Scale (HADS). The data were analyzed via linear regression to identify factors associated with low-level knowledge of COPD. A total of 245 COPD patients were enrolled in this study. The mean total BCKQ score was 28.1 (SD, 7.4). The lowest scores were seen for items exploring knowledge of "Oral steroids" and "Inhaled steroids". In univariate analysis, higher level of education (r = 0.17), low income (r = 0.13), the post-bronchodilator FEV1, % predicted (r = -0.24), the post-bronchodilator FEV1/FVC ratio (r = -0.13), SWLS (r = 0.15), PRQ (r = 0.16), SF-36 MCS (r = 0.13), HADS-A (r = -0.17), and HADS-D (r = -0.28) scores correlated with the BCKQ score (all p < 0.05). FEV1 (r = -0.25, p < 0.001) and HADS-D score (r = -0.29, p < 0.001) were significantly associated with the total BCKQ score in multivariate analysis. Our Korean patients with COPD lacked knowledge on oral and inhaled steroid treatments. In particular, patients with higher-level lung function and/or depressive symptoms exhibited poorer disease-specific knowledge; such patients may require additional education.

Lee SH ，Lee H ，Kim YS ，Park HK ，Lee MK ，Kim KU ... -  《-》

Factors associated with low-level physical activity in elderly patients with chronic obstructive pulmonary disease.

Lee SH ，Kim KU ，Lee H ，Kim YS ，Lee MK ，Park HK ... -  《-》

Factors associated with sleep disturbance in patients with chronic obstructive pulmonary disease.

Poor sleep quality in patients with chronic obstructive pulmonary disease (COPD) has been associated with poor health outcomes. However, there is a lack of research on factors associated with sleep disturbance in patients with COPD. We investigated patterns of sleep disturbance and factors associated with sleep impairment in patients with COPD. This was a prospective, multicenter cross-sectional study enrolling a sample of 245 COPD subjects. All patients completed the patient-reported measure, the COPD and Asthma Sleep Impact Scale (CASIS) to assess sleep impairment. The St. George's Respiratory Questionnaire (SGRQ), the 36-item Short-Form health survey (SF-36), Hospital Anxiety and Depression Scale (HADS), and the COPD Self-Efficacy Scale (CSES) were utilized to assess health-related quality of life (HRQL), anxiety/depression and self-efficacy, respectively. About 35.1% of the patients reported that they had a bad night's sleep. Univariate analysis showed that the CASIS total score was significantly correlated with the modified Medical Research Council dyspnea scale, SGRQ total score, SF-36 PCS, SF-36 MCS, HADS-A, HADS-D and CSES (all P < 0.05). In a multivariate analysis, SGRQ total (r = 0.19, P = 0.006), SF-36 PCS (r = 0.14, P = 0.037), HADS-D (r = 0.24, P ≤ 0.001), and CSES(r = -0.12, P = 0.010) were independently associated with the CASIS score. In this study, 35% of clinically stable patients with COPD reported poor sleep quality. Depression, poorer HRQL and self-efficacy were significantly associated with sleep disturbance in patients with COPD.

Lee SH ，Lee H ，Kim YS ，Kim KU ，Park HK ，Lee MK ... -  《-》

Factors Associated With Quality of Life in Subjects With Stable COPD.

The purpose of this study was to assess the impact of bronchiectasis, anxiety and depression, and parameters of disease severity on health-related quality of life (HRQOL) in subjects with COPD. Sixty-two subjects with stable COPD were selected for the study. The presence of bronchiectasis in all subjects with COPD was investigated by high-resolution computed tomography. Pulmonary function tests were performed. Dyspnea was assessed using the Modified Medical Research Council (MMRC) dyspnea scale. Psychological disorders were investigated using the Hospital Anxiety and Depression Scale (HADS), and the HRQOL was examined using the St George Respiratory Questionnaire (SGRQ). High-resolution computed tomography revealed that 44 of 62 (70.9%) subjects with COPD had bronchiectasis. There were no differences in pulmonary function tests, symptoms, activities, impact, SGRQ total scores, and HADS scores between COPD subjects with and without bronchiectasis. Pearson correlation analyses showed that there was no significant association between the presence of bronchiectasis, bronchial wall thickness, or severity of bronchial dilatation and all subscales of the SGRQ or HADS scores. Additionally, HADS scores showed significant positive association with all subscales of the SGRQ in all subjects. In linear regression analysis, a statistically significant relationship was found between the SGRQ total score and percent-of-predicted FEV1, percent-of-predicted diffusing capacity of the lung for carbon monoxide, MMRC score, and anxiety score, but the SGRQ total score was not associated with age, body mass index, total number of hospitalizations, PaO2 , or depression score. The presence of bronchiectasis in subjects with COPD does not impact HRQOL and psychological disorders. However, disease severity, dyspnea levels, and anxiety scores predict poor HRQOL.

Ekici A ，Bulcun E ，Karakoc T ，Senturk E ，Ekici M ... -  《-》