Concepedia

Validation of a one-page patient-reported Charlson comorbidity index questionnaire for upper aerodigestive tract cancer patients

Steven Habbous, Karen Chu, Luke Harland, Anthony La Delfa, Ehab Fadhel, Bin Sun, Wei Xu, Amy E. Wong, Doris Howell, Jolie Ringash,

Oral Oncology · 2013 · 36 citations · 27 references

DOI

Concepts

References

27

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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Understanding interobserver agreement: the kappa statistic.

Anthony J. Viera, Joanne M. Garrett · PubMed · 2005 · 7.1K citations

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High agreement but low Kappa: I. the problems of two paradoxes

Alvan R. Feinstein, Domenic V. Cicchetti · Journal of Clinical Epidemiology · 1990 · 2.9K citations

, , +7

High agreement but low kappa: II. Resolving the paradoxes

Domenic V. Cicchetti, Alvan R. Feinstein · Journal of Clinical Epidemiology · 1990 · 1.8K citations

, , +7

The self‐administered comorbidity questionnaire: A new method to assess comorbidity for clinical and health services research

Gerold Stucki, Matthew H. Liang, Anne H. Fossel et al. · Arthritis Care & Research · 2003 · 1.8K citations

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