+1 Recommend
1 collections
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Cognitive function and living situation in COPD: is there a relationship with self-management and quality of life?

      Read this article at

          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.



          Cognitive impairment is increasingly being found to be a common comorbidity in chronic obstructive pulmonary disease (COPD). This study sought to understand the relationship of comprehensively measured cognitive function with COPD severity, quality of life, living situation, health care utilization, and self-management abilities.


          Subjects with COPD were recruited from the outpatient pulmonary clinic. Cognitive function was assessed using the Montreal Cognitive Assessment (MOCA). Self-management abilities were measured using the Self Management Ability Score 30. Quality of life was measured using the Chronic Respiratory Disease Questionnaire. Pearson correlation was used to assess the bivariate association of the MOCA with other study measures. Multivariate analysis was completed to understand the interaction of the MOCA and living situation on COPD outcomes of hospitalization, quality of life, and self-management ability.


          This study included 100 participants of mean age 70±9.4 years (63% male, 37% female) with COPD (mean FEV 1 [forced expiratory volume in 1 second] percentage predicted 40.4±16.7). Mean MOCA score was 23.8±3.9 with 63% of patients having mild cognitive impairment. The MOCA was negatively correlated with age ( r=−0.28, P=0.005) and positively correlated with education ( r=+0.24, P=0.012). There was no significant correlation between cognitive function and exacerbations, emergency room (ER) visits, or hospitalizations. There was no association between the MOCA score and self-management abilities or quality of life. We tested the interaction of living situation and the MOCA with self-management abilities and found statistical significance ( P=0.017), indicating that individuals living alone with higher cognitive function report lower self-management abilities.


          Cognitive impairment in COPD does not appear to be meaningfully associated with COPD severity, health outcomes, or self-management abilities. The routine screening for cognitive impairment due to a diagnosis of COPD may not be indicated. Living alone significantly affects the interaction between self-management abilities and cognitive function.

          Related collections

          Most cited references 14

          • Record: found
          • Abstract: found
          • Article: not found

          Gait speed at usual pace as a predictor of adverse outcomes in community-dwelling older people an International Academy on Nutrition and Aging (IANA) Task Force.

          The use of a simple, safe, and easy to perform assessment tool, like gait speed, to evaluate vulnerability to adverse outcomes in community-dwelling older people is appealing, but its predictive capacity is still questioned. The present manuscript summarises the conclusions of an expert panel in the domain of physical performance measures and frailty in older people, who reviewed and discussed the existing literature in a 2-day meeting held in Toulouse, France on March 12-13, 2009. The aim of the IANA Task Force was to state if, in the light of actual scientific evidence, gait speed assessed at usual pace had the capacity to identify community-dwelling older people at risk of adverse outcomes, and if gait speed could be used as a single-item tool instead of more comprehensive but more time-consuming assessment instruments. A systematic review of literature was performed prior to the meeting (Medline search and additional pearling of reference lists and key-articles supplied by Task Force members). Manuscripts were retained for the present revision only when a high level of evidence was present following 4 pre-selected criteria: a) gait speed, at usual pace, had to be specifically assessed as a single-item tool, b) gait speed should be measured over a short distance, c) at baseline, participants had to be autonomous, community-dwelling older people, and d) the evaluation of onset of adverse outcomes (i.e. disability, cognitive impairment, institutionalisation, falls, and/or mortality) had to be assessed longitudinally over time. Based on the prior criteria, a final selection of 27 articles was used for the present manuscript. Gait speed at usual pace was found to be a consistent risk factor for disability, cognitive impairment, institutionalisation, falls, and/or mortality. In predicting these adverse outcomes over time, gait speed was at least as sensible as composite tools. Although more specific surveys needs to be performed, there is sufficient evidence to state that gait speed identifies autonomous community-dwelling older people at risk of adverse outcomes and can be used as a single-item assessment tool. The assessment at usual pace over 4 meters was the most often used method in literature and might represent a quick, safe, inexpensive and highly reliable instrument to be implemented.
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            Glasgow supported self-management trial (GSuST) for patients with moderate to severe COPD: randomised controlled trial

            Objective To determine whether supported self management in chronic obstructive pulmonary disease (COPD) can reduce hospital readmissions in the United Kingdom. Design Randomised controlled trial. Setting Community based intervention in the west of Scotland. Participants Patients admitted to hospital with acute exacerbation of COPD. Intervention Participants in the intervention group were trained to detect and treat exacerbations promptly, with ongoing support for 12 months. Main outcome measures The primary outcome was hospital readmissions and deaths due to COPD assessed by record linkage of Scottish Morbidity Records; health related quality of life measures were secondary outcomes. Results 464 patients were randomised, stratified by age, sex, per cent predicted forced expiratory volume in 1 second, recent pulmonary rehabilitation attendance, smoking status, deprivation category of area of residence, and previous COPD admissions. No difference was found in COPD admissions or death (111/232 (48%) v 108/232 (47%); hazard ratio 1.05, 95% confidence interval 0.80 to 1.38). Return of health related quality of life questionnaires was poor (n=265; 57%), so that no useful conclusions could be made from these data. Pre-planned subgroup analysis showed no differential benefit in the primary outcome relating to disease severity or demographic variables. In an exploratory analysis, 42% (75/150) of patients in the intervention group were classified as successful self managers at study exit, from review of appropriateness of use of self management therapy. Predictors of successful self management on stepwise regression were younger age (P=0.012) and living with others (P=0.010). COPD readmissions/deaths were reduced in successful self managers compared with unsuccessful self managers (20/75 (27%) v 51/105 (49%); hazard ratio 0.44, 0.25 to 0.76; P=0.003). Conclusion Supported self management had no effect on time to first readmission or death with COPD. Exploratory subgroup analysis identified a minority of participants who learnt to self manage; this group had a significantly reduced risk of COPD readmission, were younger, and were more likely to be living with others. Trial registration Clinical trials NCT 00706303.
              • Record: found
              • Abstract: found
              • Article: not found

              Screening for cognitive impairment in older adults: A systematic review for the U.S. Preventive Services Task Force.

              Earlier identification of cognitive impairment may reduce patient and caregiver morbidity. To systematically review the diagnostic accuracy of brief cognitive screening instruments and the benefits and harms of pharmacologic and nonpharmacologic interventions for early cognitive impairment. MEDLINE, PsycINFO, and the Cochrane Central Register of Controlled Trials through December 2012; systematic reviews; clinical trial registries; and experts. English-language studies of fair to good quality, primary care–feasible screening instruments, and treatments aimed at persons with mild cognitive impairment or mild to moderate dementia. Dual quality assessment and abstraction of relevant study details. The Mini-Mental State Examination (k = 25) is the most thoroughly studied instrument but is not available for use without cost. Publicly available instruments with adequate test performance to detect dementia include the Clock Drawing Test (k = 7), Mini-Cog (k = 4), Memory Impairment Screen (k = 5), Abbreviated Mental Test (k = 4), Short Portable Mental Status Questionnaire (k = 4), Free and Cued Selective Reminding Test (k = 2), 7-Minute Screen (k = 2), and Informant Questionnaire on Cognitive Decline in the Elderly (k = 5). Medications approved by the U.S. Food and Drug Administration for Alzheimer disease (k = 58) and caregiver interventions (k = 59) show a small benefit of uncertain clinical importance for patients and their caregivers. Small benefits are also limited by common adverse effects of acetylcholinesterase inhibitors and limited availability of complex caregiver interventions. Although promising, cognitive stimulation (k = 6) and exercise (k = 10) have limited evidence to support their use in persons with mild to moderate dementia or mild cognitive impairment. Limited studies in persons with dementia other than Alzheimer disease and sparse reporting of important health outcomes. Brief instruments to screen for cognitive impairment can adequately detect dementia, but there is no empirical evidence that screening improves decision making. Whether interventions for patients or their caregivers have a clinically significant effect in persons with earlier detected cognitive impairment is still unclear. Agency for Healthcare Research and Quality.

                Author and article information

                Int J Chron Obstruct Pulmon Dis
                Int J Chron Obstruct Pulmon Dis
                International Journal of COPD
                International Journal of Chronic Obstructive Pulmonary Disease
                Dove Medical Press
                10 September 2015
                : 10
                : 1883-1889
                [1 ]Division of Pulmonary and Critical Care Medicine, Mindful Breathing Laboratory, Rochester, MN, USA
                [2 ]Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
                Author notes
                Correspondence: Roberto P Benzo, Division of Pulmonary and Critical Care Medicine, Mindful Breathing Laboratory, Mayo Clinic, 200 First Street SW Rochester, MN 55905, USA, Tel +1 50 7774 0561, Fax +1 50 7266 4372, Email benzo.roberto@
                © 2015 Dulohery et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

                The full terms of the License are available at Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

                Original Research

                Respiratory medicine

                self-management ability, copd, cognitive impairment


                Comment on this article