K
Ken Kleinman
Researcher at University of Massachusetts Amherst
Publications - 299
Citations - 28682
Ken Kleinman is an academic researcher from University of Massachusetts Amherst. The author has contributed to research in topics: Population & Pregnancy. The author has an hindex of 88, co-authored 298 publications receiving 26066 citations. Previous affiliations of Ken Kleinman include Harvard University & Indiana University.
Papers
More filters
Journal ArticleDOI
Incidence of erectile dysfunction in men 40 to 69 years old: longitudinal results from the massachusetts male aging study
Catherine B. Johannes,Andre B. Araujo,Henry A. Feldman,Carol A. Derby,Ken Kleinman,John B. McKinlay +5 more
TL;DR: The incidence of erectile dysfunction in men 40 to 69 years old in Massachusetts was estimated during an average 8.8-year followup, and how risk varied with age, socioeconomic status and medical conditions was determined.
Journal ArticleDOI
The Prevalence and Geographic Distribution of Crohn’s Disease and Ulcerative Colitis in the United States
Michael D. Kappelman,Michael D. Kappelman,Sheryl L. Rifas Shiman,Ken Kleinman,Dan Ollendorf,Athos Bousvaros,Richard J. Grand,Jonathan A. Finkelstein,Jonathan A. Finkelstein +8 more
TL;DR: The prevalence of Crohn's disease and ulcerative colitis in a large national sample and to compare the prevalence across geographic regions and other sociodemographic characteristics should help quantify the overall burden of disease and inform the planning of appropriate clinical services.
Journal ArticleDOI
A nearly continuous measure of birth weight for gestational age using a United States national reference
TL;DR: Birth weight rose with greater gestational age, with increasing slopes during the third trimester and a leveling off beyond 40 weeks, which should prove useful for researchers investigating the predictors and outcomes of altered fetal growth.
Journal ArticleDOI
Much ado about nothing: A comparison of missing data methods and software to fit incomplete data regression models.
Nicholas J. Horton,Ken Kleinman +1 more
TL;DR: These routines to incorporate observations with incomplete variables in regression models are reviewed in the context of a motivating example from a large health services research dataset, and it is feasible to incorporate partially observed values.
Journal ArticleDOI
Gestational weight gain and child adiposity at age 3 years.
TL;DR: New recommendations for gestational weight gain may be required in this era of epidemic obesity, according to 1990 Institute of Medicine guidelines with child outcomes among mother-child pairs in Project Viva.