Grade table 1

Question: Peak flow self-management versus regular doctor review for self-management education for adults with asthma

Settings:

Bibliography: Powell H, Gibson PG (1)

Quality assessmentSummary of findingsImportance
No of patientsEffectsQuality
No of studiesDesignLimitationsInconsistencyIndirectnessImprecisionOther considerationsPeak flow self-managementRegular doctor reviewRelative (95% CI)Absolute
FEV1 adjusted (mean) (better indicated by lower values)
3randomised trialsserious1no serious inconsistencyno serious indirectnessserious2none344363–SMD 0 higher (0.14 lower to 0.15 higher)⊕⊕○○
LOW		–
PEF adjusted (mean) (better indicated by lower values)
3randomised trialsserious1no serious inconsistencyno serious indirectnessserious2none344363–SMD 0.06 higher (0.09 lower to 0.21 higher)⊕⊕○○
LOW		–
1

Allocation and blinding of outcome assessment inconsistent.

2

CI may include clinically important difference in both directions.

From: Annex 4, Grade tables

Cover of Prevention and Control of Noncommunicable Diseases
Prevention and Control of Noncommunicable Diseases: Guidelines for Primary Health Care in Low Resource Settings.
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