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Monitoring healthcare quality in an obstetrics and gynaecology department using a CUSUM chart

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Please cite this paper as: Boulkedid R, Sibony O, Bossu-Salvador C, Oury J, Alberti C. Monitoring healthcare quality in an obstetrics and gynaecology department using a CUSUM chart. BJOG 2010;117:1225–1235. Objective 

To use cumulative sum (CUSUM) charts for the early detection of variations in quality of care in a maternity department. Design 

Retrospective analysis of prospectively collected data. Setting 

Maternity department of a teaching hospital in Paris (France). Population 

Data from 20 519 women and 21 448 infants were collected between January 2000 and December 2007. Methods 

CUSUM charts were used to monitor the rate of 19 pre-selected quality indicators over 3 years (2005–2007), against standards developed by department obstetrician gynaecologists. Periods with adverse event rates that did not meet the standards were identified. Main outcome measures 

Quality indicator rates. Results 

Indicators fell into three groups based on the number of periods with unacceptable rates: less than one per year [e.g. the rate of intensive care unit (ICU) admission of mothers and rate of third- or fourth-degree perineal tears]; one every 2–12 months on average (e.g. blood transfusion and sulprostone use in the overall population of women); and at least one per month (insufficient availability of epidural analgesia). Conclusion 

CUSUM charts for a broad range of quality indicators can be used to monitor the quality of care in an obstetrics department. A prospective study investigating the ability of CUSUM-based monitoring to improve maternal and neonatal outcomes would be of interest.
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Keywords: CUSUM; obstetrics; quality indicators

Document Type: Research Article

Affiliations: AP-HP, Hôpital Robert Debré, Pôle Gynécologie et Perinatalite, Hospitalisation Gynécologie–Obstétrique, Paris, France

Publication date: 2010-09-01

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