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The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study
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| Zeitschriftentitel: | Statistical Methods in Medical Research |
|---|---|
| Personen und Körperschaften: | , |
| In: | Statistical Methods in Medical Research, 25, 2016, 5, S. 2214-2237 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
SAGE Publications
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| Schlagwörter: |
| author_facet |
Austin, Peter C Schuster, Tibor Austin, Peter C Schuster, Tibor |
|---|---|
| author |
Austin, Peter C Schuster, Tibor |
| spellingShingle |
Austin, Peter C Schuster, Tibor Statistical Methods in Medical Research The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study Health Information Management Statistics and Probability Epidemiology |
| author_sort |
austin, peter c |
| spelling |
Austin, Peter C Schuster, Tibor 0962-2802 1477-0334 SAGE Publications Health Information Management Statistics and Probability Epidemiology http://dx.doi.org/10.1177/0962280213519716 <jats:p> Observational studies are increasingly being used to estimate the effect of treatments, interventions and exposures on outcomes that can occur over time. Historically, the hazard ratio, which is a relative measure of effect, has been reported. However, medical decision making is best informed when both relative and absolute measures of effect are reported. When outcomes are time-to-event in nature, the effect of treatment can also be quantified as the change in mean or median survival time due to treatment and the absolute reduction in the probability of the occurrence of an event within a specified duration of follow-up. We describe how three different propensity score methods, propensity score matching, stratification on the propensity score and inverse probability of treatment weighting using the propensity score, can be used to estimate absolute measures of treatment effect on survival outcomes. These methods are all based on estimating marginal survival functions under treatment and lack of treatment. We then conducted an extensive series of Monte Carlo simulations to compare the relative performance of these methods for estimating the absolute effects of treatment on survival outcomes. We found that stratification on the propensity score resulted in the greatest bias. Caliper matching on the propensity score and a method based on earlier work by Cole and Hernán tended to have the best performance for estimating absolute effects of treatment on survival outcomes. When the prevalence of treatment was less extreme, then inverse probability of treatment weighting-based methods tended to perform better than matching-based methods. </jats:p> The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study Statistical Methods in Medical Research |
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The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_unstemmed |
The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_full |
The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_fullStr |
The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_full_unstemmed |
The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_short |
The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_sort |
the performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: a simulation study |
| topic |
Health Information Management Statistics and Probability Epidemiology |
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http://dx.doi.org/10.1177/0962280213519716 |
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2016 |
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2214-2237 |
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<jats:p> Observational studies are increasingly being used to estimate the effect of treatments, interventions and exposures on outcomes that can occur over time. Historically, the hazard ratio, which is a relative measure of effect, has been reported. However, medical decision making is best informed when both relative and absolute measures of effect are reported. When outcomes are time-to-event in nature, the effect of treatment can also be quantified as the change in mean or median survival time due to treatment and the absolute reduction in the probability of the occurrence of an event within a specified duration of follow-up. We describe how three different propensity score methods, propensity score matching, stratification on the propensity score and inverse probability of treatment weighting using the propensity score, can be used to estimate absolute measures of treatment effect on survival outcomes. These methods are all based on estimating marginal survival functions under treatment and lack of treatment. We then conducted an extensive series of Monte Carlo simulations to compare the relative performance of these methods for estimating the absolute effects of treatment on survival outcomes. We found that stratification on the propensity score resulted in the greatest bias. Caliper matching on the propensity score and a method based on earlier work by Cole and Hernán tended to have the best performance for estimating absolute effects of treatment on survival outcomes. When the prevalence of treatment was less extreme, then inverse probability of treatment weighting-based methods tended to perform better than matching-based methods. </jats:p> |
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| description | <jats:p> Observational studies are increasingly being used to estimate the effect of treatments, interventions and exposures on outcomes that can occur over time. Historically, the hazard ratio, which is a relative measure of effect, has been reported. However, medical decision making is best informed when both relative and absolute measures of effect are reported. When outcomes are time-to-event in nature, the effect of treatment can also be quantified as the change in mean or median survival time due to treatment and the absolute reduction in the probability of the occurrence of an event within a specified duration of follow-up. We describe how three different propensity score methods, propensity score matching, stratification on the propensity score and inverse probability of treatment weighting using the propensity score, can be used to estimate absolute measures of treatment effect on survival outcomes. These methods are all based on estimating marginal survival functions under treatment and lack of treatment. We then conducted an extensive series of Monte Carlo simulations to compare the relative performance of these methods for estimating the absolute effects of treatment on survival outcomes. We found that stratification on the propensity score resulted in the greatest bias. Caliper matching on the propensity score and a method based on earlier work by Cole and Hernán tended to have the best performance for estimating absolute effects of treatment on survival outcomes. When the prevalence of treatment was less extreme, then inverse probability of treatment weighting-based methods tended to perform better than matching-based methods. </jats:p> |
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| spelling | Austin, Peter C Schuster, Tibor 0962-2802 1477-0334 SAGE Publications Health Information Management Statistics and Probability Epidemiology http://dx.doi.org/10.1177/0962280213519716 <jats:p> Observational studies are increasingly being used to estimate the effect of treatments, interventions and exposures on outcomes that can occur over time. Historically, the hazard ratio, which is a relative measure of effect, has been reported. However, medical decision making is best informed when both relative and absolute measures of effect are reported. When outcomes are time-to-event in nature, the effect of treatment can also be quantified as the change in mean or median survival time due to treatment and the absolute reduction in the probability of the occurrence of an event within a specified duration of follow-up. We describe how three different propensity score methods, propensity score matching, stratification on the propensity score and inverse probability of treatment weighting using the propensity score, can be used to estimate absolute measures of treatment effect on survival outcomes. These methods are all based on estimating marginal survival functions under treatment and lack of treatment. We then conducted an extensive series of Monte Carlo simulations to compare the relative performance of these methods for estimating the absolute effects of treatment on survival outcomes. We found that stratification on the propensity score resulted in the greatest bias. Caliper matching on the propensity score and a method based on earlier work by Cole and Hernán tended to have the best performance for estimating absolute effects of treatment on survival outcomes. When the prevalence of treatment was less extreme, then inverse probability of treatment weighting-based methods tended to perform better than matching-based methods. </jats:p> The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study Statistical Methods in Medical Research |
| spellingShingle | Austin, Peter C, Schuster, Tibor, Statistical Methods in Medical Research, The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study, Health Information Management, Statistics and Probability, Epidemiology |
| title | The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_full | The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_fullStr | The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_full_unstemmed | The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_short | The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| title_sort | the performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: a simulation study |
| title_unstemmed | The performance of different propensity score methods for estimating absolute effects of treatments on survival outcomes: A simulation study |
| topic | Health Information Management, Statistics and Probability, Epidemiology |
| url | http://dx.doi.org/10.1177/0962280213519716 |