Quality-Adjusted Life Years Lost from Nonfatal Motor Vehicle Accident Injuries
ABSTRACT A number of studies have estimated the quality-adjusted life years (QALYs) lost from nonfatal motor vehicle accident injuries, but these estimates have a number of limitations.
The goal of this study is to estimate the QALYs lost from the typical motor vehicle accident injury based on 1) data obtained through a standard preference elicitation procedure, 2) both permanent and nonpermanent injuries, and 3) a more realistic baseline quality-of-life level from which to determine the QALY decrement. This study also intends to demonstrate the advantages of using self-reported health status as the basis for determining a change in QALYs.
Ordered probit equations were estimated to determine the change in self-reported health status associated with 3 categories of injuries. These results were next converted to their marginal effects and weighted by the quality-of-life estimates for self-reported health status found in Nyman and others (2007). The quality-of-life decrements for the 3 categories of injury were then converted to QALY decrements by applying estimates of the duration of that injury type.
The data came from 8 years of the Medical Expenditure Panel Survey (MEPS), from 1997 to 2004.
Self-reported health status categories were excellent, very good, good, fair, or poor.
The reference case decrement for an average motor vehicle accident injury is 0.0612 QALYs or 0.0360 QALYs, if discounted at 3%.
Quality-of-life weights for self-reported health status can be used to exploit the data in large national surveys.
SourceAvailable from: Patricia Cubi-Molla[Show abstract] [Hide abstract]
ABSTRACT: The objective of this paper is to evaluate the effect of a nonfatal road crash on the health-related quality of life of injured people. A new approach is suggested, based on the cardinalization of categorical Self-Assessed Health valuations. Health losses have been estimated by using different Time Tradeoff and Visual Analogue Scale tariffs, in order to assess the robustness of the results. The methodology is based on the existing literature about treatment effects. Our main contribution focuses on evaluating the loss of health up to one year after the non-fatal accident, for those who are noninstitutionalized, which aids the appropriate estimation of the aggregated health losses in quality-of-life terms.
Medical Decision Making 04/2014; 34(8). DOI:10.1177/0272989X14526642 · 2.27 Impact Factor
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ABSTRACT: PURPOSE: As many as 3 million US residents are injured in traffic-related incidents every year leaving many victims with disabling conditions. To date, limited numbers of studies have examined the effects of traffic-related injuries on self-reported health. This study aims to examine the association between health-related quality of life (HRQOL) and traffic-related injuries longitudinally in a nationally representative sample of US adult population. METHODS/APPROACH: This is a longitudinal study of adult participants (age ≥18) from seven panels (2000-2007) of the Medical Expenditure Panel Survey. The dependent variables included the physical and mental components of the SF-12, a measure of self-reported health. The outcome was assessed twice during the follow-up period: round 2 (~4-5 months into the study) and round 4 (~18 months into the study) for 62,298 individuals. Two methods estimate the association between traffic-related injuries and HRQOL: a within person change using paired tests and a between person change using multivariable regression adjusting for age, sex, income and educational level. RESULTS: Nine hundred and ninety-three participants reported traffic-related injuries during the follow-up period. Compared to their pre-crash HRQOL, these participants lost 2.7 of the physical component score while their mental component did not change. Adjusted results showed significant deficits in the physical component (-2.84, p value = <.001) but not the mental component (-0.07, p value = .83) of HRQOL after controlling for potential confounders. CONCLUSION: Traffic injuries were significantly associated with the physical component of HRQOL. These findings highlight the individual and societal burden associated with motor vehicle crash-related disability in the United States.Quality of Life Research 06/2013; DOI:10.1007/s11136-013-0444-3 · 2.86 Impact Factor