1. Division of Epidemiology and Community Health, and University of Minnesota School of Public Health, Minneapolis, Minnesota, USA.
2. Division of Biostatistics, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA.
3. University of Alabama at Birmingham School of Nursing, Birmingham, Alabama, USA.
4. Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA.
5. Department of Urology, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
6. Division of Research, Kaiser Permanente Northern California, Oakland, California, USA.
7. Department of Urology, University of California, San Francisco, San Francisco, California, USA.
8. Department of Medicine, Division of Gerontology, Geriatrics, and Palliative Care and the Birmingham/Atlanta Geriatrics Research, Education, and Clinical Center, University of Alabama at Birmingham School of Medicine and Birmingham VA Health Care System, Birmingham, Alabama, USA.