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Methodological Considerations When Studying the Association between Patient-Reported Care Experiences and Mortality.
Xiao Xu1, Eugenia Buta2, Rebecca Anhang Price3
1Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT.
Health Services Research
|December 9, 2014
Summary
Patient care experiences are linked to mortality, especially for deaths not amenable to medical care. However, patient experiences can change yearly, impacting the observed relationship with mortality.
Area of Science:
- Health Services Research
- Epidemiology
- Biostatistics
Background:
- Assessing the link between patient care experiences and mortality is crucial for healthcare quality improvement.
- Understanding methodological challenges in this research area is essential for accurate interpretation of findings.
Purpose of the Study:
- To highlight key methodological considerations in evaluating the association between patient care experiences and mortality.
- To examine how time-varying patient care experiences influence mortality outcomes.
Main Methods:
- Utilized longitudinal data from the Medical Expenditure Panel Survey (2000-2005), linked with National Health Interview Survey and National Death Index data.
- Employed Cox proportional hazards models to analyze mortality as a function of patient experience measures.
- Assessed the stability of patient care experiences over time using quartile analysis.
Main Results:
- A significant association was found between overall care experiences and mortality for deaths not amenable to medical care and all-cause mortality.
- No significant association was observed for deaths amenable to medical care.
- Only time spent with the patient demonstrated a significant association with mortality among individual experience questions.
Conclusions:
- The relationship between patient care experiences and mortality is influenced by the type of death (amenable vs. not amenable to medical care).
- The dynamic and multifaceted nature of patient care experiences necessitates careful consideration in research designs.
- Time-varying patient experiences and deaths not amenable to medical care are critical factors for future studies.
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