K
Karen C. Johnson
Researcher at University of Tennessee Health Science Center
Publications - Â 454
Citations - Â 65159
Karen C. Johnson is an academic researcher from University of Tennessee Health Science Center. The author has contributed to research in topics: Women's Health Initiative & Randomized controlled trial. The author has an hindex of 84, co-authored 409 publications receiving 57823 citations. Previous affiliations of Karen C. Johnson include Veterans Health Administration & University of Southern California.
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Journal ArticleDOI
Risks and benefits of estrogen plus progestin in healthy postmenopausal women: Principal results from the Women's Health Initiative randomized controlled trial
Jacques E. Rossouw,Garnet L. Anderson,Ross L. Prentice,Andrea Z. LaCroix,Charles Kooperberg,Marcia L. Stefanick,Rebecca D. Jackson,Shirley A.A. Beresford,Barbara V. Howard,Karen C. Johnson,Jane Morley Kotchen,Judith K. Ockene +11 more
TL;DR: Overall health risks exceeded benefits from use of combined estrogen plus progestin for an average 5.2-year follow-up among healthy postmenopausal US women, and the results indicate that this regimen should not be initiated or continued for primary prevention of CHD.
Journal ArticleDOI
Effects of conjugated equine estrogen in postmenopausal women with hysterectomy: the Women's Health Initiative randomized controlled trial
Garnet L. Anderson,Marian C. Limacher,Annlouise R. Assaf,Tamsen Bassford,Shirley A.A. Beresford,Henry R. Black,Denise E. Bonds,Robert L. Brunner,Robert G. Brzyski,Bette J. Caan,Rowan T. Chlebowski,J. David Curb,Margery Gass,Jennifer Hays,Gerardo Heiss,Susan L. Hendrix,Barbara V. Howard,Judith Hsia,F. Allan Hubbell,Rebecca D. Jackson,Karen C. Johnson,Howard L. Judd,Jane Morley Kotchen,Lewis H. Kuller,Andrea Z. LaCroix,Dorothy S. Lane,Robert Langer,Norman L. Lasser,Cora E. Lewis,JoAnn E. Manson,Karen L. Margolis,Judith K. Ockene,Mary Jo O'Sullivan,Lawrence S. Phillips,Ross L. Prentice,Cheryl Ritenbaugh,John A Robbins,Jacques E. Rossouw,Gloria E. Sarto,Marcia L. Stefanick,Linda Van Horn,Jean Wactawski-Wende,Robert B. Wallace,Sylvia Wassertheil-Smoller +43 more
TL;DR: The use of conjugated equine estrogen (CEE) increases the risk of stroke, decreases therisk of hip fracture, and does not affect CHD incidence in postmenopausal women with prior hysterectomy over an average of 6.8 years, indicating no overall benefit.
Journal ArticleDOI
A Randomized Trial of Intensive versus Standard Blood-Pressure Control
Jackson T. Wright,Jeff D. Williamson,Paul K. Whelton,Joni K. Snyder,Kaycee M. Sink,Michael V. Rocco,David M. Reboussin,Mahboob Rahman,Mahboob Rahman,Suzanne Oparil,Cora E. Lewis,Paul L. Kimmel,Karen C. Johnson,David C. Goff,Lawrence J. Fine,Jeffrey A. Cutler,William C. Cushman,Alfred K. Cheung,Walter T. Ambrosius +18 more
TL;DR: In this article, the most appropriate targets for systolic blood pressure to reduce cardiovascular morbidity and mortality among persons without diabetes remain uncertain, and the authors propose a target of less than 120 mm Hg.
Journal ArticleDOI
Cardiovascular effects of intensive lifestyle intervention in type 2 diabetes.
Rena R. Wing,Paula Bolin,Frederick L. Brancati,George A. Bray,Jeanne M. Clark,Mace Coday,Richard S. Crow,Jeffrey M. Curtis,Caitlin Egan,Mark A. Espeland,Mary Evans,John P. Foreyt,Siran Ghazarian,Edward W. Gregg,Barbara Harrison,Helen P. Hazuda,James O. Hill,Edward S. Horton,S. Van Hubbard,John M. Jakicic,Robert W. Jeffery,Karen C. Johnson,Steven E. Kahn,Abbas E. Kitabchi,William C. Knowler,Cora E. Lewis,Barbara J. Maschak-Carey,Maria G. Montez,Anne Murillo,David M. Nathan,Jennifer Patricio,Anne L. Peters,Xavier Pi-Sunyer,Henry J. Pownall,David M. Reboussin,Judith G. Regensteiner,Amy D. Rickman,Donna H. Ryan,Monika M. Safford,Thomas A. Wadden,Lynne E. Wagenknecht,Delia Smith West,David F. Williamson,Susan Z. Yanovski +43 more
TL;DR: An intensive lifestyle intervention focusing on weight loss did not reduce the rate of cardiovascular events in overweight or obese adults with type 2 diabetes.
Journal ArticleDOI
Estrogen plus progestin and the risk of coronary heart disease
JoAnn E. Manson,Judith Hsia,Karen C. Johnson,Jacques E. Rossouw,Annlouise R. Assaf,Norman L. Lasser,Maurizio Trevisan,Henry R. Black,Susan R. Heckbert,Robert Detrano,Ora L. Strickland,Nathan D. Wong,John R. Crouse,Evan A. Stein,Mary Cushman +14 more
TL;DR: Estrogen plus progestin does not confer cardiac protection and may increase the risk of CHD among generally healthy postmenopausal women, especially during the first year after the initiation of hormone use.