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Naihua Duan
Researcher at Columbia University
Publications - 177
Citations - 21481
Naihua Duan is an academic researcher from Columbia University. The author has contributed to research in topics: Health care & Mental health. The author has an hindex of 60, co-authored 174 publications receiving 18824 citations. Previous affiliations of Naihua Duan include Cleveland Clinic & RAND Corporation.
Papers
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Journal ArticleDOI
Purposeful Sampling for Qualitative Data Collection and Analysis in Mixed Method Implementation Research.
Lawrence A. Palinkas,Sarah M. Horwitz,Carla A. Green,Jennifer P. Wisdom,Naihua Duan,Kimberly Hoagwood +5 more
TL;DR: This paper reviews the principles and practice of purposeful sampling in implementation research, summarizes types and categories of purposefully sampling strategies and provides a set of recommendations for use of single strategy or multistage strategy designs, particularly for state implementation research.
Posted Content
Health insurance and the demand for medical care: evidence from a randomized experiment.
Willard G. Manning,Joseph P. Newhouse,Naihua Duan,Emmett B. Keeler,Arleen Leibowitz,M S Marquis +5 more
TL;DR: This work estimates how cost sharing, the portion of the bill the patient pays, affects the demand for medical services and rejects the hypothesis that less favorable coverage of outpatient services increases total expenditure.
Journal ArticleDOI
Prevalence of Mental Illness in Immigrant and Non-Immigrant U.S. Latino Groups
Margarita Alegría,Glorisa Canino,Patrick E. Shrout,Meghan Woo,Naihua Duan,Doryliz Vila,L.M.H.C. Maria Torres,Chih-Nan Chen,Xiao-Li Meng +8 more
TL;DR: It is suggested that immigrants benefit from a protective context in their country of origin, possibly inoculating them against risk for substance disorders, particularly if they emigrated to the United States as adults.
Journal ArticleDOI
Evidence‐Based Medicine, Heterogeneity of Treatment Effects, and the Trouble with Averages
TL;DR: The difficulties of applying global evidence ("average effects" measured as population means) to local problems (individual patients or groups who might depart from the population average) are discussed.
Journal ArticleDOI
Effectiveness of a quality improvement intervention for adolescent depression in primary care clinics: a randomized controlled trial.
Joan Rosenbaum Asarnow,Lisa H. Jaycox,Naihua Duan,Anne P. LaBorde,Margaret M. Rea,Pamela J. Murray,Martin Anderson,Christopher Landon,Lingqi Tang,Kenneth B. Wells +9 more
TL;DR: A 6-month quality improvement intervention aimed at improving access to evidence-based depression treatments through primary care was significantly more effective than usual care for depressed adolescents from diverse primary care practices.