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Table 4 Cervical cancer risk in relation to age of sexual debut

From: Determinants of sexual activity and its relation to cervical cancer risk among South African Women

 

Age of sexual debut

Cases (N = 524)

Controls (N = 1541)

Crude OR CI (95%)

Adjusted OR* CI (95%)

  

N (%)

N (%)

  

All women**

     
 

≥ 20 years

76 (15)

305 (20)

[1.0]***

[1.0]***

 

16–19 years

266 (51)

838 (54)

1.3 (1.0 – 1.7)

1.1 (0.8–1.5)

 

< 16 years

168 (32)

357 (23)

1.9 (1.4 – 2.6)

1.6 (1.2–2.2)

Coloured women+

 

(N = 391)

(N = 1155)

  
 

≥ 20

60 (15)

265 (23)

[1.0]***

[1.0]***

 

16–19 years

200 (51)

616 (53)

1.4 (1.0 – 2.0)

1.2 (0.9–1.7)

 

< 16 years

127 (33)

268 (23)

2.1 (1.5 – 3.0)

1.7 (1.2–2.4)

Black women++

 

(N = 133)

(N = 386)

  
 

≥ 20

16 (12)

40 (10)

[1.0] ***

[1.0]***

 

16–19 years

66 (50)

222 (58)

0.7 (0.4 – 1.4)

0.9 (0.5–1.4)

 

< 16 years

41 (31)

89 (23)

1.2 (0.6 – 2.3)

1.3 (0.7–2.4)

  1. * Adjusted for number of sexual partners controlled for age, race, marital status, hormonal contraceptive use, years formal education, residence, ever smoked, ever alcohol consumption and ever having had a pap smear
  2. ** 14 & 41 women with missing or unknown values for cases and controls respectively are not shown
  3. *** Reference category
  4. +&++ 4 & 6 women with missing or unknown values for cases and controls and 10 & 35 women with missing or unknown values for cases and controls respectively are not shown