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Master Thesis

Variability of the scoring strategies for the hospital survey on patient safety culture

Abstract : Objective - To assess the variability of safety culture dimensions scores and their associated rankings depending on three different scoring strategies using the Hospital Survey On Patient Safety Culture. Design - Cross-sectional study using a self-administered questionnaire. Setting - The study was conducted in a 1836-bed acute-care French university hospital with an annual volume of 90,000 stays, between April 2013 and November 2014. Participants - All caregivers and technical-administrative staff with at least six months of employment and doing at least half of their working time in the hospital were asked to participate. Respondents were secondarily excluded according to the Agency for Healthcare Research and Quality (AHRQ) criteria. Methods - Percentage of positive responses (M1), recommended by the AHRQ, averaged individual means (M2) and averaged individual sums (M3) were computed. Their 95% confidence intervals (95CI) were estimated using the bootstrap percentile method after rescaling. Results - The response rate was 78.6% (n=3978), mainly women caregivers. M1 underestimated dimensional scores compared to M2 and M3 in the 6 less developed dimensions, and gave more widely spread scores in the 6 most developed ones. Rankings across age classes, specialties, occupation and gender greatly varied depending on the scoring methods. 95CI of M1 were almost twice as wide as their M2 and M3 counterparts and were overlapping. Conclusion - Dimensional scores and rankings greatly depend on the used scoring method. Despite its recommended use, M1 had the worst results in terms of accuracy and rankings variability. The use of M2 should be preferred.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-01215692
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Submitted on : Wednesday, October 14, 2015 - 4:58:24 PM
Last modification on : Wednesday, July 15, 2020 - 8:58:04 AM
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  • HAL Id : dumas-01215692, version 1

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Joris Giai. Variability of the scoring strategies for the hospital survey on patient safety culture. Human health and pathology. 2015. ⟨dumas-01215692⟩

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