User profiles for A. James O’Malley

A. James O'Malley

Professor of Biostatistics, Dartmouth
Verified email at Dartmouth.edu
Cited by 19645

Receiver-operating characteristic analysis for evaluating diagnostic tests and predictive models

KH Zou, AJ O'Malley, L Mauri - Circulation, 2007 - Am Heart Assoc
When evaluating a continuous-scale diagnostic test, we need to account for the changes of
specificity and sensitivity when the test threshold t varies. One may wish to report the sum of …

Diabetes and cardiovascular disease during androgen deprivation therapy for prostate cancer

NL Keating, AJ O'Malley, MR Smith - Journal of clinical oncology, 2006 - ascopubs.org
Purpose Androgen deprivation therapy with a gonadotropin-releasing hormone (GnRH)
agonist is associated with increased fat mass and insulin resistance in men with prostate cancer…

[HTML][HTML] Endovascular vs. open repair of abdominal aortic aneurysms in the Medicare population

ML Schermerhorn, AJ O'Malley, A Jhaveri… - … England Journal of …, 2008 - Mass Medical Soc
Background Randomized trials have shown reductions in perioperative mortality and morbidity
with endovascular repair of abdominal aortic aneurysm, as compared with open surgical …

[HTML][HTML] Breast-cancer tumor size, overdiagnosis, and mammography screening effectiveness

HG Welch, PC Prorok, AJ O'Malley… - New England Journal …, 2016 - Mass Medical Soc
Background The goal of screening mammography is to detect small malignant tumors before
they grow large enough to cause symptoms. Effective screening should therefore lead to …

Diabetes and cardiovascular disease during androgen deprivation therapy: observational study of veterans with prostate cancer

NL Keating, AJ O'Malley, SJ Freedland… - Journal of the National …, 2010 - academic.oup.com
Background Previous studies indicate that androgen deprivation therapy for prostate cancer
is associated with diabetes and cardiovascular disease among older men. We evaluated …

[HTML][HTML] Long-term outcomes of abdominal aortic aneurysm in the Medicare population

ML Schermerhorn, DB Buck, AJ O'Malley… - New england journal …, 2015 - Mass Medical Soc
Background Randomized trials and observational studies have shown that perioperative
morbidity and mortality are lower with endovascular repair of abdominal aortic aneurysm than …

[HTML][HTML] Improving the management of chronic disease at community health centers

BE Landon, LRS Hicks, AJ O'Malley… - … England Journal of …, 2007 - Mass Medical Soc
Background The Health Disparities Collaboratives of the Health Resources and Services
Administration (HRSA) were designed to improve care in community health centers, where …

[HTML][HTML] Flattening the mental health curve: COVID-19 stay-at-home orders are associated with alterations in mental health search behavior in the United States

…, G Price, MV Heinz, M Song, AJ O'Malley… - JMIR mental …, 2020 - mental.jmir.org
Background The coronavirus disease (COVID-19) has led to dramatic changes worldwide
in people’s everyday lives. To combat the pandemic, many governments have implemented …

Access to specialty care and medical services in community health centers

NL Cook, LRS Hicks, AJ O'Malley, T Keegan… - Health …, 2007 - healthaffairs.org
Although community health centers (CHCs) provide primary health services to the medically
underserved and poor, limited access to off-site specialty services may lead to poorer …

The analysis of social networks

AJ O'malley, PV Marsden - Health services and outcomes research …, 2008 - Springer
Many questions about the social organization of medicine and health services involve
interdependencies among social actors that may be depicted by networks of relationships. Social …