P
Patrick Graham
Researcher at University of Otago
Publications - 53
Citations - 5538
Patrick Graham is an academic researcher from University of Otago. The author has contributed to research in topics: Population & Public health. The author has an hindex of 24, co-authored 52 publications receiving 4304 citations. Previous affiliations of Patrick Graham include University of Alaska Fairbanks & Christchurch Hospital.
Papers
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Journal ArticleDOI
Updating and Validating the Charlson Comorbidity Index and Score for Risk Adjustment in Hospital Discharge Abstracts Using Data From 6 Countries
Hude Quan,Bing Li,Chantal Marie Couris,Kiyohide Fushimi,Patrick Graham,Phil Hider,Jean-Marie Januel,Vijaya Sundararajan +7 more
TL;DR: The updated Charlson index of 12 comorbidities showed good-to-excellent discrimination in predicting in-hospital mortality in data from 6 countries and may be more appropriate for use with more recent administrative data.
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Vitamin A supplementation to prevent mortality and short- and long-term morbidity in very low birth weight infants.
Brian A Darlow,Patrick Graham +1 more
TL;DR: Whether clinicians decide to utilise repeat intramuscular doses of vitamin A to prevent chronic lung disease may depend upon the local incidence of this outcome and the value attached to achieving a modest reduction in the outcome balanced against the lack of other proven benefits and the acceptability of the treatment.
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The analysis of ordinal agreement data: beyond weighted kappa
Patrick Graham,Rodney Jackson +1 more
TL;DR: The use of statistical models in the analysis of epidemiologic agreement data is illustrated and it is concluded that modelling ordinal agreement data produces insights which cannot be obtained through the use of weighted kappa statistics.
Journal ArticleDOI
High iron status in very low birth weight infants is associated with an increased risk of retinopathy of prematurity
TL;DR: The hypothesis that excessive iron loads may increase the formation of free radicals and the development of retinopathy of prematurity in preterm infants is explored.
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Compression, expansion, or dynamic equilibrium? The evolution of health expectancy in New Zealand
TL;DR: The dynamic equilibrium scenario provides the best fit to current New Zealand evidence on changes in population health, and although an aging population is likely to lead to an increase in demand for disability support services, the fiscal impact of this increase may be partially offset by a shift from major to moderate limitations.