Dena R. Ramey
Stanford University
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Featured researches published by Dena R. Ramey.
Arthritis & Rheumatism | 2001
John Wong; Dena R. Ramey; Gurkirpal Singh
OBJECTIVE To estimate the morbidity, mortality, and lifetime costs of care for rheumatoid arthritis (RA). METHODS We developed a Markov model based on the Arthritis, Rheumatism, and Aging Medical Information System Post-Marketing Surveillance Program cohort, involving 4,258 consecutively enrolled RA patients who were followed up for 17,085 patient-years. Markov states of health were based on drug treatment and Health Assessment Questionnaire scores. Costs were based on resource utilization, and utilities were based on visual analog scale-based general health scores. RESULTS The cohort had a mean age of 57 years, 76.4% were women, and the mean duration of disease was 11.8 years. Compared with a life expectancy of 22.0 years for the general population, this cohort had a life expectancy of 18.6 years and 11.3 quality-adjusted life years. Lifetime direct medical care costs were estimated to be
Pharmacology & Therapeutics | 1994
Gurkirpal Singh; Dena R. Ramey; Dianne Morfeld; James F. Fries
93,296. Higher costs were associated with higher disability scores. CONCLUSION A Markov model can be used to estimate lifelong morbidity, mortality, and costs associated with RA, providing a context in which to consider the potential value of new therapies for the disease.
JAMA Internal Medicine | 1996
Gurkirpal Singh; Dena R. Ramey; Dianne Morfeld; Hong Shi; Hind T. Hatoum; James F. Fries
Comparative toxicity of non-steroidal anti-inflammatory drugs was assessed using the Stanford Toxicity Index consisting of weighted symptoms, laboratory abnormalities and hospitalizations in 2976 consecutively enrolled rheumatoid arthritis patients from eight data bank centers with 27,936 patient-years of observation. Scores ranged from 1.77 (SE 0.20) for aspirin to 5.94 (SE 0.92) for meclofenamate, with many differences between drugs being 2- to 3-fold and highly statistically significant. Results are consistent with our prior data, persist when assessed by several different scoring algorithms, are consistent across data bank centers and are consistent with data of others. There are major and reproducible differences in the overall toxicity of different non-steroidal anti-inflammatory drugs.
Arthritis Care and Research | 1992
Dena R. Ramey; Jean-Pierre Raynauld; James F. Fries
Arthritis & Rheumatism | 1993
James F. Fries; Catherine A. Williams; Dena R. Ramey; Daniel A. Bloch
JAMA Internal Medicine | 2002
Benjamin W. E. Wang; Dena R. Ramey; Jared D. Schettler; Helen B. Hubert; James F. Fries
The Journal of Rheumatology | 1997
James F. Fries; Dena R. Ramey
JAMA Internal Medicine | 1993
James F. Fries; Dena R. Ramey; Gurkirpal Singh; Dianne Morfeld; Daniel A. Bloch; Jean-Pierre Raynauld
The Journal of Rheumatology | 1997
James F. Fries; Catherine A. Williams; Gurkirpal Singh; Dena R. Ramey
Archive | 2017
Benjamin W. E. Wang; Dena R. Ramey; Jared D. Schettler; Helen B. Hubert; James F. Fries