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The impact of guidelines on mild hypertension in pregnancy: Time series analysis

Lookup NU author(s): Dr Robbie Foy, Professor Jeremy Grimshaw, Professor Luke ValeORCiD


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Objective: To determine the impact of a national strategy to promote implementation of a guideline on the management of mild, non-proteinuric hypertension in pregnancy. Design: Simple, interrupted time series analysis. Setting: Four maternity units in Scotland. Population: Women delivering a live or stillborn baby. Methods: Dissemination of the guideline under the auspices of a national clinical effectiveness programme, supported by a national launch meeting and feedback from a survey of obstetricians highlighting aspects of care that could be improved. Main outcome measures: Appropriateness of initial investigation and subsequent clinical management, and costs of guideline development and implementation activities. Data collection: Twenty-four months pre-intervention and 12 months post-intervention data were abstracted from a random sample of case notes. Results: Initial investigation was consistent with recommendations for 59.9% out of 1263 women and subsequent clinical management for 67.6% out of 1081 in whom a diagnosis could be made from available data. There were no significant changes in the appropriateness of initial investigation (10.6%; 95% confidence interval [CI] -0.1% to 19.3%; decreasing by 1.2% per month post-implementation, 95% CI -2.5% to 0.1%) or clinical management (-0.3%; 95% CI -8.7% to 11.2%). Guideline development and implementation cost an estimated £2784 per maternity unit in Scotland. Conclusions: Clinical care of mild hypertension in pregnancy remains highly inconsistent. The lack of the intervention effect may be related to the complexity of the guideline recommendations and the nature of the implementation strategy.

Publication metadata

Author(s): Foy R, Ramsay CR, Grimshaw JM, Penney GC, Vale L, Thomson A, Greer IA

Publication type: Article

Publication status: Published

Journal: BJOG: An International Journal of Obstetrics and Gynaecology

Year: 2004

Volume: 111

Issue: 8

Pages: 765-770

ISSN (print): 1470-0328

ISSN (electronic): 0140-7686

Publisher: Wiley-Blackwell


DOI: 10.1111/j.1471-0528.2004.00212.x

PubMed id: 15270921


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