Concepedia

Surgical repair of perforated peptic ulcers: laparoscopic versus open approach

Victor Vakayil, Brent D. Bauman, Keaton Joppru, Reema Mallick, Christopher J. Tignanelli, John E. Connett, Sayeed Ikramuddin, James V. Harmon

Surgical Endoscopy · 2018 · 32 citations · 47 references

DOI

Concepts

References

47

A new method of classifying prognostic comorbidity in longitudinal studies: Development and validation

Mary E. Charlson, Peter Pompei, Kathy L. Aleš et al. · Journal of Chronic Diseases · 1987 · 49.9K citations

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Balance diagnostics for comparing the distribution of baseline covariates between treatment groups in propensity‐score matched samples

Peter C. Austin · Statistics in Medicine · 2009 · 6.5K citations · Full text

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Optimal caliper widths for propensity‐score matching when estimating differences in means and differences in proportions in observational studies

Peter C. Austin · Pharmaceutical Statistics · 2010 · 3.9K citations · Full text

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New ICD-10 version of the Charlson comorbidity index predicted in-hospital mortality

Vijaya Sundararajan, Toni Henderson, Catherine Perry et al. · Journal of Clinical Epidemiology · 2004 · 2.5K citations

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New 5-Factor Modified Frailty Index Using American College of Surgeons NSQIP Data

Sneha Subramaniam, Jeffrey J. Aalberg, Rainier P. Soriano et al. · Journal of the American College of Surgeons · 2017 · 1.1K citations

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