| American Indian | White |  |
---|---|---|---|
 | (n= 235) | (n= 246) |  |
Risk factors | % | % | Χ 2 p-value |
Age, years | Â | Â | Â |
   18 - 24 | 26 | 13 | 0.01 |
   25 - 34 | 31 | 33 |  |
   35 - 44 | 25 | 29 |  |
   45 - 54 | 12 | 18 |  |
   55 - 65 | 6 | 8 |  |
Sexual partners | Â | Â | Â |
   1 | 7 | 23 | < 0.001 |
   2 - 3 | 24 | 29 |  |
   4 - 5 | 12 | 12 |  |
   6 - 9 | 33 | 24 |  |
   ≥ 10 | 24 | 12 |  |
HPV prevalence a | % (95% CI) | % (95% CI) | Χ 2 p-value |
Infection status | Â | Â | Â |
   Not infected | 58 (51-65) | 77 (71-82) | < 0.001 |
   Infected by single HPV type | 23 (18-30) | 16 (12-21) |  |
   Infected by multiple HPV types | 19 (15-24) | 7 (4-11) |  |
Alpha 7 oncogenic infectionb | 12 (9-16) | 8 (5-13) | 0.03 |
Alpha 9 oncogenic infectionc | 18 (13-24) | 9 (6-14) | < 0.001 |
Other oncogenic infectiond | 8 (5-11) | 2 (1-4) | 0.001 |
Any oncogenic infection | 30 (25-36) | 16 (11-21) | < 0.001 |