Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Int J Chron Obstruct Pulmon Dis. 2012;7:427-35. doi: 10.2147/COPD.S32222. Epub 2012 Jul 10.

Clinical diaries in COPD: compliance and utility in predicting acute exacerbations.

Author information

  • 1Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia.

Abstract

BACKGROUND:

Daily diaries are often used to collect data on disease activity, but are burdensome and compliance may be poor. Their use in chronic obstructive pulmonary disease (COPD) and impact on the prevention and treatment of exacerbations is poorly researched.

METHODS:

We investigated diary-keeping in COPD and ascertained items that best predicted emergency attendances for exacerbations. Participants in the active limb of a clinical trial in COPD kept daily diaries rating breathlessness, cough, sputum, physical activity, and use of reliever medication.

RESULTS:

Data on 55 participants, 67% of whom were female, showed that overall compliance with diary-keeping was 62%. Participants educated to primary school level only had lower compliance (P = 0.05). Twenty patients had at least one emergency attendance, in whom the relative risk of an acute exacerbation for an increase in item score rose from six days prior to hospitalization, most sharply in the last two days. Even for optimal combinations of items, the positive predictive value was poor, the best combination being cough, activity level, and inhaler use.

CONCLUSION:

Good compliance can be achieved using daily diaries in COPD, although this is worse in those with a poor educational level. Diary-keeping is not accurate in predicting acute exacerbations, but could be substantially simplified without loss of efficiency.

KEYWORDS:

chronic obstructive pulmonary disease; daily diary; secondary prevention

PMID:
22848156
[PubMed - indexed for MEDLINE]
PMCID:
PMC3402058
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Dove Medical Press Icon for PubMed Central
    Loading ...
    Write to the Help Desk