The Patient Outcomes Research To Advance Learning (PORTAL) Network Adult Overweight and Obesity Cohort: Development and Description

Deborah R Young   ^{1 *} , PhD ;   Beth A Waitzfelder   ^{2 *} , PhD ;   David Arterburn   ^{3 *} , MD ;   Gregory A Nichols   ^{4 *} , PhD ;   Assiamira Ferrara   ^{5 *} , MD, PhD ;   Corinna Koebnick   ^{1 *} , PhD ;   Ayae Yamamoto   ^{1 *} , ScM ;   Matthew F Daley   ^{6 *} , MD ;   Nancy E Sherwood   ^{7 *} , PhD ;   Michael A Horberg   ^{8 *} , MD ;   Lee Cromwell   ^{9 *} , MS ;   Kristina H Lewis   ^{10 *} , MD, MPH, SM

¹ Kaiser Permanente Southern California, Department of Research & Evaluation, Pasadena, CA, US

² Kaiser Permanente Hawaii, Center for Health Research, Honolulu, HI, US

³ Group Health Research Institute, Seattle, WA, US

⁴ Kaiser Permanente Northwest, Center for Health Research, Portland, OR, US

⁵ Kaiser Permanente Northern California, Division of Research, Oakland, CA, US

⁶ Kaiser Permanente Colorado, Institute for Health Research, Denver, CO, US

⁷ HealthPartners Institute, Bloomington, MN, US

⁸ Mid-Atlantic Permanente Research Institute, Rockville, MD, US

⁹ Kaiser Permanente Georgia, Atlanta, GA, US

¹⁰ Wake Forest Baptist Medical Center, Department of Epidemiology & Prevention, Winston-Salem, NC, US

*all authors contributed equally