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Table 3 Association between HPV infection and variables associated with clinical behavior

From: HPV infection and cervical neoplasia: associated risk factors

Risk factor OR (95 % CI)a p-value OR (95%CI)b p-value OR (95%CI)c p-value
Age       
<35 years 0.86(0.35-2.10) 0.71 0.87(0.33-2.29) 0.76 0.97(0.51-1.85) 0.02
≥35 years       
Initiation of sexual activity       
<16 years 4.41(1.20-19.33) 0.01 4.68(1.20-21.32) 0.01 0.9(0.46-1.76) 0.7
≥16 years       
Number of partners       
1 0.8(0.32-1.97) 0.3 1.2(0.37-3.88) 0.7 0.9(0.40-2.04) 0.8
≥2       
Number of partners       
<3 1.21(0.5-2.95) 0.6 1.2(0.45-3.08) 0.7 1.06(0.55-2.05) 0.85
≥3       
Pregnancies       
None 0.64(0.14-2.45) 0.48 0.7(0.15-3.32) 0.67 0.7(0.3-1.80) 0.46
≥1       
Oral contraceptive       
Yes 1.1(0.38-2.93) 0.88 1.49(0.48-4.57) 0.44 0.5(0.25-1.19) 0.09
No       
Smoking      
Yes 1.6(0.50-5.99) 0.38 1.8(0.50-6.97) 0.32 0.83(0.38-1.82) 0.62
No       
  1. aconfidence interval. HPV: Human papillomavirus
  2. bHPV types 16 and 18, Reference HPV-negative
  3. cOther HPV types except HPV 16 and 18, Reference HPV 16 and 18