HPV Positive Women and Risk Factors in Development Cervical Intraepithelial Lesions

Background: Human papillomavirus is a risk factor in the development of cervical cancer. Other risk factors are frequent vaginal infections, cigarette smoking, use of oral contraceptives, but also lack of lacrobacillus in women with HPV infection. Objective: The objective of our study was to determine the risk factors for the development of cervical intraepithelial lesions in women with normal and pathological Pap test results. Methods: The research is a prospective study conducted in the Gynecology Center "Dr. Mahira Jahić" Tuzla and Dom Zdravlja Tešanj since February. 2023 to March 2024. The research included 200 respondents aged 25 to 50. Tested group: 100 subjects with pathological Pap smear findings (ASCUS, LSIL and HSIL) and a control group of 100 subjects with normal Pap smear findings. Sociodemographic data were obtained from the subjects during interviews and examinations: age, cigarette consumption and frequency of previous vaginal infections and the presence of lactobacilli. The obtained results were processed using the methods of descriptive statistics, student's t test and X2 test. A difference for a value of p<0.5 was considered statistically significant. Results: The mean age of the dpbo examined group was 38.1±1.7, while in the control group it was 39.6±1.9 years. Cigarettes were consumed by 62 (31%), 38 (19%) of the examined group, and 24 (12%) of the control group with a statistically significant difference of p<0.05. Out of a total of 100 in the examined group, 60 subjects had LSIL, 9 subjects had HSIL (CIN 2 two subjects and CIN 3 had 7), and ASCUS 29 and ASC-H 2 subjects. Subjects with pathological findings had significantly more vaginal infections during one year (p<0.05). HPV was positive in 65 (65%) subjects with a pathological Pap smear test, and negative HPV in 35 (35%). HPV 16,18 was present in 19 (19%) test subjects in combined form, and mono-isolate HPV 16 in 14 (14%) and HPV 18 in one case. In the combined form of several HPVs, HPV 16 and HPV 31, 33, 35, 45, 56 were found in 5 (5%), and HPV 18 in 4 (4%) with HPV 36, 59, 68. The most frequently isolated HPV 16 in 38 (38%) as monoisolate and in combined form. Lactobacilli were present in 26 (13%) subjects in the test group and in 60 (30%) subjects in the control group, with a statistically significant difference (p<0.05). The presence of Lactobacillus in subjects with a regular Pap test is significantly more frequent compared to women with cervical intraepithelial lesions (ASCUS, LSIL, ASC-H and HSIL) ) in the finding of the Pap test. Conclusion: Altered microflora of the vagina, lack of lactobacilli, frequent vaginal infections and smoking are risk factors for the development of CIN lesions in women positive for high-risk HPV.