Acknowledgments: The AI-SUPERPFP would not have been possible without the significant contributions of many people. The following interviewers, computer/data management, and administrative staff supplied energy and enthusiasm for an often difficult job: Anna E. Barón, PhD, Antonita Begay, Amelia T. Begay, Cathy A. E. Bell, Phyllis Brewer, Nelson Chee, Mary Cook, Helen J. Curley, Mary C. Davenport, Rhonda Wiegman Dick, Marvine D. Douville, Pearl Dull Knife, Geneva Emhoolah, Fay Flame, Roslyn Green, Billie K. Greene, Jack Herman, Tamara Holmes, Shelly Hubing, Cameron R. Joe, Louise F. Joe, Cheryl L. Martin, Jeff Miller, Robert H. Moran, Jr, Natalie K. Murphy, Melissa Nixon, Ralph L. Roanhorse, Margo Schwab, PhD, Jennifer Settlemire, Donna M. Shangreaux, Matilda J. Shorty, Selena S. S. Simmons, Wileen Smith, Tina Standing Soldier, Jennifer Truel, Lori Trullinger, Arnold Tsinajinnie, Jennifer M. Warren, Intriga Wounded Head, Theresa (Dawn) Wright, Jenny J. Yazzie, and Sheila A. Young. We would also like to acknowledge the contributions of the Methods Advisory Group: Margarita Alegria, PhD, Evelyn J. Bromet, PhD, Dedra Buchwald, MD, Peter Guarnaccia, PhD, Steven G. Heeringa, PhD, Ronald Kessler, PhD, R. Jay Turner, PhD, and William A. Vega, PhD. Finally, we thank the tribal members who so generously answered all the questions asked of them.