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Table 1 Distribution of risk factors and HPV prevalence by clinic site

From: HPV infection among rural American Indian women and urban white women in South Dakota: an HPV prevalence study

 

American Indian

White

 
 

(n= 235)

(n= 246)

 

Risk factors

%

%

Χ 2 p-value

Age, years

   

   18 - 24

26

13

0.01

   25 - 34

31

33

 

   35 - 44

25

29

 

   45 - 54

12

18

 

   55 - 65

6

8

 

Sexual partners

   

   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

   

   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

  1. a Prevalence estimates are standardized by age and number of sexual partners; b HPV types 16, 31, 33, 35, 52, 58, and 67; c HPV types 18, 39, 45, 59, 68, and 70; d HPV types 51, 56, 66, 73, 82.