J
John A. Shepherd
Researcher at University of Hawaii
Publications - 392
Citations - 16089
John A. Shepherd is an academic researcher from University of Hawaii. The author has contributed to research in topics: Breast cancer & Bone mineral. The author has an hindex of 63, co-authored 351 publications receiving 13036 citations. Previous affiliations of John A. Shepherd include University of California, San Francisco & University of San Francisco.
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Journal ArticleDOI
Comparisons of percentage body fat, body mass index, waist circumference, and waist-stature ratio in adults
Katherine M. Flegal,John A. Shepherd,Anne C. Looker,Barry I. Graubard,Lori G. Borrud,Cynthia L. Ogden,Tamara B. Harris,James E. Everhart,Nathaniel Schenker +8 more
TL;DR: BMI, WC, and WSR perform similarly as indicators of body fatness and are more closely related to each other than with percentage body fat.
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Executive summary of the 2013 International Society for Clinical Densitometry Position Development Conference on bone densitometry.
TL;DR: The methodology of the 2013 ISCD Body Composition PDC is described, the recommendations pertain to clinically relevant issues regarding DXA indications of use, acquisition, analysis, quality control, interpretation, and reporting are addressed and the results are summarized.
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Revised Reference Curves for Bone Mineral Content and Areal Bone Mineral Density According to Age and Sex for Black and Non-Black Children: Results of the Bone Mineral Density in Childhood Study
Babette S. Zemel,Heidi J. Kalkwarf,Vicente Gilsanz,Joan M. Lappe,Sharon E. Oberfield,John A. Shepherd,Margaret M. Frederick,Xangke Huang,Ming Lu,Soroosh Mahboubi,Thomas N. Hangartner,Karen K. Winer +11 more
TL;DR: These reference curves provide the most robust reference values for the assessment and monitoring of bone health in children and adolescents in the literature to date.
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Height adjustment in assessing dual energy x-ray absorptiometry measurements of bone mass and density in children
Babette S. Zemel,Mary B. Leonard,Andrea Kelly,Joan M. Lappe,Vicente Gilsanz,Sharon E. Oberfield,Soroosh Mahboubi,John A. Shepherd,Thomas N. Hangartner,Margaret M. Frederick,Karen K. Winer,Heidi J. Kalkwarf +11 more
TL;DR: Most methods to adjust BMC/BMD Z-scores for height were biased by age and/or HAZ, and Adjustments using HAZ were least biased relative to HAZ and age and can be used to evaluate the effect of short or tall stature on BMC/ BMD Z -scores.
Journal ArticleDOI
The Bone Mineral Density in Childhood Study: Bone Mineral Content and Density According to Age, Sex, and Race
Heidi J. Kalkwarf,Babette S. Zemel,Vicente Gilsanz,Joan M. Lappe,Mary Horlick,Sharon E. Oberfield,Soroosh Mahboubi,Bo Fan,Margaret M. Frederick,Karen K. Winer,John A. Shepherd +10 more
TL;DR: Age-, race-, and sex-specific reference curves can be used to help identify children with bone deficits and for monitoring changes in bone in response to chronic diseases or therapies.