4.6 Article

Two self-sampling strategies for HPV primary cervical cancer screening compared with clinician-collected sampling: an economic evaluation

期刊

BMJ OPEN
卷 13, 期 6, 页码 -

出版社

BMJ PUBLISHING GROUP
DOI: 10.1136/bmjopen-2022-068940

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health economics; oncology; health policy

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This study compares the costs and effects of three sampling strategies for HPV primary screening, and finds that self-sampling could be a less expensive alternative to clinician-collected sampling, and can expand the reach of cervical screening to under-screened women.
ObjectiveTo compare the costs and effects of three sampling strategies for human papillomavirus (HPV) primary screening.DesignCost-consequence analysis from a health system perspective using a deterministic decision tree model.SettingEngland.ParticipantsA cohort of 10000women aged 25-65 years eligible for the National Health Service Cervical Screening Programme (NHSCSP).MethodsThe model was based on the NHSCSP HPV primary screening pathway and adapted for self-sampling. It used a 3-year cycle: routine screening (year 1) and recall screening (years 2/3). Parameter inputs were informed using published studies, NHSCSP reports and input from experts and manufacturers. Costs were from 2020/2021, British pound sterling ().InterventionsThree sampling strategies were implemented: (1) routine clinician-collected cervical sample, (2) self-collected first-void (FV) urine, (3) self-collected vaginal swab. The hypothetical self-sampling strategies involved mailing women a sampling kit.Main outcome measuresPrimary outcomes: overall costs (for all screening steps to colposcopy), number of complete screens and cost per complete screen. Secondary outcomes: number of women screened, number of women lost to follow-up, cost per colposcopy and total screening costs for a plausible range of uptake scenarios.ResultsIn the base case, the average cost per complete screen was 56.81 pound for clinician-collected cervical sampling, 38.57 pound for FV urine self-sampling and 40.37 pound for vaginal self-sampling. In deterministic sensitivity analysis, the variables most affecting the average cost per screen were the cost of sample collection for clinician-collected sampling and the cost of laboratory HPV testing for the self-sampling strategies. Scaled to consider routine screening in England, if uptake in non-attenders increased by 15% and 50% of current screeners converted to self-sampling, the NHSCSP would save 19.2million pound (FV urine) or 16.5million pound (vaginal) per year.ConclusionSelf-sampling could provide a less costly alternative to clinician-collected sampling for routine HPV primary screening and offers opportunities to expand the reach of cervical screening to under-screened women.

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