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Nicholas J. Christian
Researcher at University of Pittsburgh
Publications - 15
Citations - 1738
Nicholas J. Christian is an academic researcher from University of Pittsburgh. The author has contributed to research in topics: Weight loss & Weight change. The author has an hindex of 13, co-authored 15 publications receiving 1532 citations.
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Journal ArticleDOI
Weight change and health outcomes at 3 years after bariatric surgery among individuals with severe obesity.
Anita P. Courcoulas,Nicholas J. Christian,Steven H. Belle,Paul D. Berk,David R. Flum,Luis Garcia,Mary Horlick,Melissa A. Kalarchian,Wendy C. King,James E. Mitchell,Emma J. Patterson,John R. Pender,Alfons Pomp,Walter J. Pories,Richard C. Thirlby,Susan Z. Yanovski,Bruce M. Wolfe +16 more
TL;DR: There was substantial weight loss 3 years after bariatric surgery, with the majority experiencing maximum weight change during the first year, however, there was variability in the amount and trajectories of weight loss and in diabetes, blood pressure, and lipid outcomes.
Journal ArticleDOI
Psychopathology before surgery in the Longitudinal Assessment of Bariatric Surgery-3 (LABS-3) Psychosocial Study
James E. Mitchell,Faith Selzer,Melissa A. Kalarchian,Michael J. Devlin,Gladys W. Strain,Katherine A. Elder,Marsha D. Marcus,Steve Wonderlich,Nicholas J. Christian,Susan Z. Yanovski +9 more
TL;DR: The current and lifetime rates of psychopathology are high in bariatric surgery candidates, and the Lifetime rates of affective disorder and alcohol use disorders are particularly prominent.
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Baseline characteristics of participants in the Longitudinal Assessment of Bariatric Surgery-2 (LABS-2) study.
Steven H. Belle,Paul D. Berk,William H. Chapman,Nicholas J. Christian,Anita P. Courcoulas,Greg Dakin,David R. Flum,Mary Horlick,Wendy C. King,Carol A. McCloskey,James E. Mitchell,Emma J. Patterson,John R. Pender,Kristine J. Steffen,Richard C. Thirlby,Bruce M. Wolfe,Susan Z. Yanovski +16 more
TL;DR: Baseline characteristics of participants in the Longitudinal Assessment of Bariatric Surgery-2 (LABS-2) study Steven H. Belle, Ph.D., M.P.H.H., F.A.C.Hyg.
Journal ArticleDOI
Postoperative Behavioral Variables and Weight Change 3 Years After Bariatric Surgery.
James E. Mitchell,Nicholas J. Christian,David R. Flum,Alfons Pomp,Walter J. Pories,Bruce M. Wolfe,Anita P. Courcoulas,Steven H. Belle +7 more
TL;DR: The results suggest the importance of assessing behaviors related to eating behavior, eating problems, weight control practices, and the problematic use of alcohol, smoking, and illegal drugs in bariatric surgery candidates and patients who have undergonebariatric surgery, and they suggest that the utility of programs to modify problematic eating behaviors and eating patterns should be addressed in research.
Journal ArticleDOI
Changes in Sexual Functioning and Sex Hormone Levels in Women Following Bariatric Surgery
David B. Sarwer,Jacqueline C. Spitzer,Thomas A. Wadden,James E. Mitchell,Kathryn Lancaster,Anita P. Courcoulas,William Gourash,Raymond C. Rosen,Nicholas J. Christian +8 more
TL;DR: Women who underwent bariatric surgery had significant improvements in overall sexual functioning, in most reproductive hormones of interest, and in psychosocial status, with improvements being maintained through the second postoperative year.