Perceived Control of Asthma and Quality of Life Among Adults with Asthma

Details

• Personal Author:
  Blanc PD ; Eisner MD ; Katz PP ; Yelin EH
• Description:
  Background: Perceived control of certain chronic conditions influences both quality of life (QOL) and psychological adjustment. We wished to establish this relationship among adults with asthma. Methods: Data were drawn from multiple waves of a longitudinal cohort study of adults with asthma surveyed by telephone at 18-month intervals (n=128). A scale measuring perceived control of asthma (PCoA) was administered at baseline and follow-up. This 12-item scale was derived from a validated arthritis perceived control measure. The PCoA showed high internal consistency (Cronbach's a = .76) and was significantly correlated with asthma severity both at baseline (r=-.27, p=.002) and at follow-up (r=-.23, p=.008). The Marks Asthma Quality of Life Questionnaire (AQLQ) and CES-D depressive symptom scale were also administered longitudinally. We estimated the association between changes in PCoA over time and AQLQ and CES-D scores at follow-up, controlling for baseline AQLQ, CES-D, and changes in asthma severity. Results: Even controlling for changes in severity and prior AQLQ, decreases in PCoA were associated with worse QOL at follow-up (p<.0001). Similarly, controlling for changes in severity and prior CES-D scores, decreases in PCoA were associated with higher levels of depressive symptoms at follow-up (p=.004). In these models, PCoA explained 11% of the variance in AQLQ (model R2=.25) and 6% of the variance in CES-D (model R2=.12). Conclusions: Although changes in asthma severity are associated with changes in individuals' perceived control of asthma, PCoA has an independent effect on asthma-specific QOL and psychological adjustment. [Description provided by NIOSH]
• Subjects:
  Mental Health Occupational Health Respiratory System Respiratory Tract Diseases Safety
• Keywords:
  Breathing Psychological-effects Psychological-factors Psychological-reactions Psychological-responses Respiration Respiratory-system-disorders
• ISSN:
  1073-449X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Abstract or Summary
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  163
• Issue:
  5
• NIOSHTIC Number:
  nn:20035690
• Citation:
  Am J Respir Crit Care Med 2001 Apr; 163(5)(2)(Suppl):A315
• Email:
  eisner@itsa.ucsf.edu
• Federal Fiscal Year:
  2001
• NORA Priority Area:
  Research Tools and Approaches: Social and Economic Consequences
• Performing Organization:
  Cardiovascular Research Institute, The University of California, San Fransico California
• Peer Reviewed:
  False
• Part Number:
  2
• Start Date:
  19970930
• Source Full Name:
  American Journal of Respiratory and Critical Care Medicine. Abstracts of the American Thoracic Society 2001 International Conference, May 18-23, 2001, San Francisco, California
• Supplement:
  Suppl
• End Date:
  20010929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:978a211dce73ce2ea0bf2b6469e042f841513f027a3d414a673c93eb9f7c012b555cb1439117d21c810e54fc6310758c3857f0c228807a9c2d4db098ab4ceda1
• Download URL:
  https://stacks.cdc.gov/view/cdc/187470/cdc_187470_DS1.pdf
• File Type:
  [PDF - 308.50 KB ]