Indian Health Service, Division of Oral Health
: Questions were asked of each of the dental directors of Indian Health Service or local service units that serve at least 30,000 people. At baseline 33 units met the definition: 1 headquarters or national program, 20 field programs, 12 Regional or Area Offices.
Data Years Available
: 2003, 2004, 2006, 2010
Response rate and sample size