1. Institute for Health Research Kaiser Permanente Colorado Aurora CO USA
2. Division of General Internal Medicine, Department of Medicine University of Colorado School of Medicine Aurora CO USA
3. Colorado Permanente Medical Group, Denver, CO, USA
4. Department of Sociology University of Michigan Ann Arbor MI USA
5. Institute for Social Research‐Populations Studies Center University of Michigan Ann Arbor MI USA
6. Department of Sociology University of California Berkeley CA USA
7. Berkeley Population Center University of California Berkeley CA USA