International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2025
Cervical cytology-based screening identifies trichomonas vaginalis as a significant correlate of non-16/18 high-risk human papillomavirus infection in high-altitude tibetan agro-pastoral communities: A cross-sectional study of 62,657 women.
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Chen Min, Lhamo Yeshi, Chödrön Kelsang, Chen Le
Аннотация
BACKGROUND: The epidemiological relationship between Trichomonas vaginalis (TV) and high-risk human papillomavirus (HR-HPV) remains controversial in high-altitude populations.
METHODS: This was a cross-sectional analysis of 62,657 asymptomatic women from China's Cervical and Breast Cancer Screening Program in Tibetan agro-pastoral communities (2019-2024). TV was microscopically identified through microbial evaluation via Pap smear in cervical cytology; HR-HPV genotypes were detected using commercial kit. Statistical analyses included χ² tests, odds ratios (ORs) with 95% confidence intervals (CIs), and age-stratified comparisons.
RESULTS: The TV prevalence was 1.32%, whereas HR-HPV affected 8.93% of the participants, with the former being dominated by non-16/18 genotypes (81.04-89.13%). TV showed an inverted U-shaped age distribution (peak: 40-49 y, 1.83%); HR-HPV exhibited a U-shaped curve (peaks<20 y/≥60 y). TV-positive women had elevated HR-HPV risk (OR = 1.28, 95% CI: 1.03-1.59), with a stronger association for non-16/18 genotypes (OR = 1.41, 95% CI: 1.12-1.78); this relationship was most pronounced in women aged 30-49 years (OR = 1.30-1.33).
CONCLUSION: TV infection is significantly associated with non-16/18 HR-HPV in Tibetan women aged 30-49 years, suggesting a potential cofactor role. This association requires cautious interpretation due to unmeasured factors, with future studies needed to clarify these influences.
METHODS: This was a cross-sectional analysis of 62,657 asymptomatic women from China's Cervical and Breast Cancer Screening Program in Tibetan agro-pastoral communities (2019-2024). TV was microscopically identified through microbial evaluation via Pap smear in cervical cytology; HR-HPV genotypes were detected using commercial kit. Statistical analyses included χ² tests, odds ratios (ORs) with 95% confidence intervals (CIs), and age-stratified comparisons.
RESULTS: The TV prevalence was 1.32%, whereas HR-HPV affected 8.93% of the participants, with the former being dominated by non-16/18 genotypes (81.04-89.13%). TV showed an inverted U-shaped age distribution (peak: 40-49 y, 1.83%); HR-HPV exhibited a U-shaped curve (peaks<20 y/≥60 y). TV-positive women had elevated HR-HPV risk (OR = 1.28, 95% CI: 1.03-1.59), with a stronger association for non-16/18 genotypes (OR = 1.41, 95% CI: 1.12-1.78); this relationship was most pronounced in women aged 30-49 years (OR = 1.30-1.33).
CONCLUSION: TV infection is significantly associated with non-16/18 HR-HPV in Tibetan women aged 30-49 years, suggesting a potential cofactor role. This association requires cautious interpretation due to unmeasured factors, with future studies needed to clarify these influences.