2014 · Journal of clinical microbiology · paywalled
Head-to-head comparison of second-generation nucleic acid amplification tests for detection of Chlamydia trachomatis and Neisseria gonorrhoeae on urine samples from female subjects and self-collected vaginal swabs
Chernesky et al.
The finding, in our words
Self-collected vaginal swabs detected more chlamydia and gonorrhoeae infections than first-void urine across all four assays, with chlamydia sensitivities of 84.6-98.1% on swabs versus 75.5-88.7% on urine. This indicates vaginal swabs are the more sensitive specimen for decentralised STI screening in women.
A paraphrase to the Library’s standard, never the abstract. The source is one link away and is always the authority.
This meta-analysis found that HPV testing using self-collected vaginal and urine samples showed sensitivities of 88.6% and 81% for detecting cervical precancer. Using a standardised device for first-void urine increased sensitivity to 86.6%, supporting decentralised patient-centric screening, though data on specificity and specific commercial devices were not consistently reported.
Hsiao et al., The journal of obstetrics and gynaecology research (paywalled) · source ↗
This meta-analysis found that self-collected urine samples for HPV testing had lower sensitivity for detecting high-grade lesions compared to physician-collected cervical specimens. The use of a first-void collection device such as Colli-Pee was associated with marginally higher sensitivity than general urine sampling.
Chen et al., Journal of lower genital tract disease (paywalled) · source ↗
Vaginal self-sampling achieved higher pooled sensitivity and specificity than urine self-sampling for detecting high-risk HPV, making it the preferred option, while urine self-sampling remains a useful non-invasive choice for under-screened populations.
For decentralised testing, a study found dry vaginal self-samples using Copan FLOQSwabs stored up to two weeks at room temperature maintain DNA quality. However, first-void urine collected with the Colli-Pee device may be less sensitive for HPV detection, showing lower positivity and higher cycle threshold values, median Ct 30 versus 27 for other samples.
Chu et al., BJOG : an international journal of obstetrics and gynaecology · source ↗
The Phase HPV Urine Test detected 14 high-risk HPV types from first-void urine samples, showing 93 per cent concordance with the Roche cobas 4800 reference assay after sequencing adjudication. The test demonstrated high precision, a low limit of detection, and ten-day stability at ambient temperature, supporting non-invasive, self-collected screening to improve access and participation.
Manjeshwar et al., Journal of clinical microbiology · source ↗