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  • 1
    Online Resource
    Online Resource
    An evaluation of solid versus liquid transport media for high-risk HPV detection and cervical cancer screening on self-collected specimens
    Springer Science and Business Media LLC ; 2020
    In:  Infectious Agents and Cancer Vol. 15, No. 1 ( 2020-12)
    Details
    In: Infectious Agents and Cancer, Springer Science and Business Media LLC, Vol. 15, No. 1 ( 2020-12)
    Abstract: The solid transport media is a small size card that allows fast, easy DNA extraction from a variety of biological samples. In 2016 we developed a solid media transport card; for that pilot study to control the self-collection we used a pseudo-self-collection technique. The current study expands this prior work using true self-collections and only the POI card, and aims to evaluate the solid media transport card to detect HR-HPV in self-samples compared to liquid transport media. Methods Ten thousand eight hundred eighty-five women between the ages of 30–59 with no screening for 3 years were enrolled. The self-collected sample was first applied to a new solid media transport card (Labeled as SC) then the brush placed in 6 ml ThinPrep liquid (Labeled as SL). Then a physician collected a direct endocervical specimen into ThinPrep liquid (Labeled as DL). Samples were tested with Cobas 4800 and the SeqHPV NGS assay for HR-HPV. Patients positive on any test were recalled for colposcopy and biopsy. Results Ten thousand three hundred thirty-nine participants had complete data. The mean age was 43.9 years. CIN 2+ rates were 1.4% (142/10339). The agreement in HPV detection between the two different self-sample collection media was also good (Cobas HPV kappa = 0.86; SeqHPV kappa = 0.98). Tested with Cobas, the sensitivity of Cobas-SL and Cobas-SC for CIN 2+ was95.07 and 94.37%; and for CIN3+ was 96.30, 96.30% respectively. The specificity of Cobas-SC, and Cobas-SL for CIN2+ was 88.74 and 87.35%; for CIN3 was 88.04and 86.65% respectively. Tested with SeqHPV, the sensitivity for CIN2+ of Seq-SC and Seq-SL was 95.77 and 96.48%; for CIN3+, both the SC and SL specimens had a sensitivity of 100%. The specificity for CIN2+ of Seq-SC and Seq-SL was 89.54 and 89.53%; for CIN3+ was 88.84,88.82% respectively. For both HR-HPV assays, the sensitivities were similar for the two self-sample media (SC vs SL, p  = 1.00). Conclusions The solid transport card for collecting vaginal self-samples as accurate as liquid transport media assayed by two different PCR based HR-HPV tests. The solid transport media is a suitable medium for collecting and storing vaginal self-samples.
    Type of Medium: Online Resource
    ISSN: 1750-9378
    URL: Article
    DOI: 10.1186/s13027-020-00333-4
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 2251117-9
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  • 2
    Online Resource
    Online Resource
    Evaluation of Cobas HPV and SeqHPV Assays in the Chinese Multicenter Screening Trial
    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Journal of Lower Genital Tract Disease Vol. 25, No. 1 ( 2021-1), p. 22-26
    Details
    In: Journal of Lower Genital Tract Disease, Ovid Technologies (Wolters Kluwer Health), Vol. 25, No. 1 ( 2021-1), p. 22-26
    Abstract: The aim of the study was to evaluate the Cobas 4800 Assay and the SeqHPV Assay with self (S) and direct (D) cervical samples in the Chinese Multicenter Screening Trial (CHIMUST). Materials and Methods The CHIMUST is a large population-based multicenter clinical trial, and 10,885 women aged 30–59 years from 15 sites in 7 provinces with no cervical cancer screening for 3 years were eligible. All participating women contributed one self-collected sample (S) and 1 physician-collected endocervical sample (DL). The self-collected sample was first applied to the solid media transport card (SS), and then, the brush placed in 6 mL of ThinPrepSolution (SL). All samples were tested with Cobas 4800 and SeqHPV high-risk HPV assays. Patients human papillomavirus positive (self or direct) were recalled for colposcopy and biopsies. Results A total of 10,399 women had complete data. The mean age was 43.9 years. A total of 1.4% (142/10,399) had cervical intraepithelial neoplasia (CIN) 2+ and 0.5% (54/10,339) had CIN 3+. In the liquid specimens, the overall HPV infection rates were 10.8% for Cobas and 10.9% for SeqHPV in D sample, and 13.7% for Cobas and 11.6% for SeqHPV in SL sample, respectively. The sensitivity of Cobas-DL, Cobas-SL, SeqHPV-DL, and SeqHPV-SL for CIN 2+ was 95.07%, 95.07%, 94.33%, and 96.48%, respectively. The specificity of Cobas-DL, Cobas-SL, SeqHPV-DL, and SeqHPV-SL for CIN 2+ was 90.38%, 87.35%, 90.21%, and 89.53%, respectively. There were no differences in sensitivity when applying the 2 assays to both self- and directly collected samples in liquid transport media ( p 〉 .05). Conclusions Both Cobas and SeqHPV screening assays using both self-collected and directly endocervical collected specimens demonstrate similar sensitivity for the detection of CIN 2+ and CIN 3+.
    Type of Medium: Online Resource
    ISSN: 1526-0976
    URL: Article
    DOI: 10.1097/LGT.0000000000000577
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
    detail.hit.zdb_id: 2006922-4
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