Self-collection increased screening without lowering detection
Offering self-collected human papillomavirus tests through primary care greatly increased cervical screening, especially in under-screened women, while biopsy-confirmed detection of serious disease remained similar.
*Retrospective cohort study; Level 2b (OCEBM).
Citation
Sultana F, Smith M, Saville M, et al. Uptake and performance of self-collection offered through primary care to all eligible participants in a national cervical screening programme in Australia: a retrospective cohort study. Lancet Public Health. 2026;11:e101–e110.
Background
Self-collection for human papillomavirus testing may reduce barriers to cervical screening, but real-world programme data are limited. Australia expanded self-collection eligibility in 2022 and evaluated uptake and clinical performance.
Patients
People with a cervix in Australia aged 25–74 years in the national screening register. Excluded: tests done for symptoms or post-treatment surveillance; and, for disease-detection analyses, those with prior/same-day specialist exam, no follow-up exam, or missing key results.
Intervention
Self-collected vaginal sample for human papillomavirus testing offered through primary care (universal eligibility from July 1, 2022).
Control
Clinician-collected cervical sample for human papillomavirus testing.
Outcome
Self-collection uptake; biopsy-confirmed serious precancer changes and cervical cancer among those referred for specialist cervical exam (colposcopy).
Follow-up Period
Uptake: Dec 1, 2017–Dec 31, 2023. Disease detection cohort: July 1, 2022–June 30, 2023, with outcome capture to Dec 31, 2023.
Results
| Measure |
Result |
| Self-collection uptake among all valid screening tests |
1.2% (Q2 2022) to 26.9% (Q4 2023) |
| Highest uptake subgroups (Q4 2023) |
>10 years overdue: 51.9%; very remote areas: 53.9%; age 70–74: 33.5% |
Among women referred for colposcopy, adjusted comparisons showed similar odds of biopsy-confirmed serious precancer changes and cancer for self-collected versus clinician-collected samples (no meaningful differences after accounting for age and other baseline differences). Follow-up information was less complete after self-collection (about 70%) than clinician collection (about 82%).
Limitations
Retrospective design with baseline differences between groups and short outcome follow-up. More missing follow-up after self-collection, partly due to care pathways not matching guidelines, could bias detection estimates.
Funding
None; national register infrastructure supported by Australian Government.
Clinical Application
Offer self-collection routinely in primary care to raise screening in under-screened patients, and ensure reliable follow-up systems and clinician training to prevent missed specialist assessment.