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Table 2 Prevalence ratios and corresponding 95% confidence intervals (CI) for HPV awareness according to selected socio-demographic characteristics and smoking habits among 301 young primiparous women, Sao Paulo, Brazil, 2006-2007

From: Awareness and knowledge of HPV, cervical cancer, and vaccines in young women after first delivery in São Paulo, Brazil - a cross-sectional study

 

Total

HPV awareness

Prevalence ratio

95% CI

P

Age (years)

    

0.003*

   15-18

90

26.7%

1

  

   19-21

119

35.3%

1.32

[0.87-2.02]

 

   22-24

92

47.8%

1.79

[1.20-2.69]

 

Ethnic group

    

0.923

   White

190

37.9%

1

  

   Black

31

32.3%

0.85

[0.50-1.46]

 

   Mulatto

77

35.1%

0.93

[0.65-1.32 ]

 

   Indian

3

33.3%

0.88

[1.76-4.40 ]

 

Years of schooling

    

0.039*

   ≤7

37

29.7%

1

  

   8

67

28.4%

0.95

[0.51-1.78]

 

   9 or 10

64

35.9%

1.21

[0.67-2.19]

 

   ≥11

133

42.9%

1.44

[0.85-2.46]

 

Marital status

    

0.093

   Living with partner

245

38.8%

1

  

   Single

56

26.8%

0.69

[0.44-1.10]

 

Income 1

    

0.054*

   < 1

13

38.5%

1

  

   1-3

188

31.9%

0.83

[0.40-1.70]

 

   4-6

80

45.0%

1.17

[0.56-2.43]

 

   7-10

11

27.3%

0.71

[0.22-2.31]

 

   > 10

5

80.0%

2.08

[0.92-4.70]

 

Smoking habits

    

0.493

   Never

231

35.5%

1

  

   Ever 2

70

40.0%

1.13

[0.81-1.58]

 
  1. 1 In number of minimum wages per month (one minimum wage = R$250.00 or US$119.80; US$1.00 = R$ 2.09, February 2007). Data missing for 4 participants.
  2. 2 Included current and former smokers.
  3. *Chi-square for trend
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