Association of life-style factors and HPV types with delayed onset of cervical cancer.

aPatient group ≤40 yrs was taken as reference group and odds ratios were calculated using a logistic regression model including all significant variables of table 3; reference variable (OR = 1), p value and 95% confidence interval are shown. bOther HPVs includes single infections other than HPV16/18/45/39 and double infections. cInformation of six patients was missed. dInclude nulliparous (3.4% of total cases). ePatients that have been assisted at least once to Pap screening. *Lower-risk factor or reference factor for CC. Association of life-style factors and HPV types with delayed onset of cervical cancer.