Gavin, Stuart, Gregory, Taylor, Christina M, Bancej, Jennifer, Beaulac, Terence, Colgan, Eduardo L, Franco, Rhonda Y, Kropp, Robert, Lotocki, Verna, Mai, C Meg, McLachlin, Jay, Onysko, Ruth Elwood, Martin, Laurie, Elit, Fernando, Guijon, Janice, Mann, Gina, Ogilvie, Barbara, Romanowski, and Margaret, Tromp
Objective : To develop evidence-based consensus recommendations on the delivery of cervical cancer screening, human papillomavirus (HPV) education, HPV testing, and the optimal tool for cervical cytology within the Canadian health system. Participants : Leading up to a forum held in Ottawa on November 21 and 22, 2003, 254 registrants reviewed position papers through a Web-based discussion group. Experts in program management, clinicat practice, epidemiology, public health, economies, and women’s health, representing 48 organizations, then participated in the 2-day forum to develop consensus recommendations. Evidence : Writing groups prepared position papers on optimal methods for cervical cytology; education concerning HPV; HPV testing in primary screening; HPV testing as a triage tool in cytopathology; and delivery mechanisms for cervical screening. Systematic reviews were the primary source of evidence supplemented by literature searches. Consensus Process : Feedback from Web-based discussions was incorporated into consecutive drafts of position papers. At the forum, recommendations and supporting evidence were presented, further debated in small-group sessions, and discussed in a plenary session. Despite divergent professional mandates and opinions, consensus was achieved on 15 recommendations across all areas. Final recommendations were posted to the Web for further input and circulated for written consensus by participants. Conclusions : The recommendations cover the use of new evidence and technologies in cervical cancer prevention in Canada and provide a framework for provision of HPV education, planning the implementation of new cervical screening technologies in Canada, the development of evaluation plans, and new research areas. Recommendations : 1. In keeping with the ultimate goal of implementing an organized cervical screening program, each province and territory should prioritize the components of an organized screening program, and then incrementally implement the components as feasible. (III-B) 2. Each province and territory should implement a comprehensive population-based cervical screening database that includes data on the target population of eligible women, all screening tests completed, results of all screening tests, all follow-up tests, the diagnoses, and outcomes. The information in this database should be available to the patient and health-care provider to inform their screening decisions. (II-3-B) 3. A set of population-based performance indicators and targets for cervical screening should be developed on a pan-Canadian basis, building on the work previously completed by the Cervical Cancer Prevention Network (CCPN); provincial/territorial cervical screening programs should be regularly evaluated at a provincial/territorial/national level using these indicators. (III-B) 4. HPV information, within a broader sexual health context, should be provided to all Canadians. Education initiatives should be developed to be specific and sensitive to age, sex/gender, culture, language, and sexual orientation, among ether factors. Education initiatives should be devised with input from representatives of the target audience and their educators to maximize effectiveness. Multiple mediums, including public education; health-care providers; and media sources, among ether modes of outreach, should deliver the HPV information. Education topics should include the link between HPV and cervical cancer; epidemiology of HPV in Canada; types of HPV; transmission; symptoms; risk and protective factors; prevention; possible consequences of HPV infection, including cervical cancer; and the importance of cervical screening. Adequate resources need to be allocated to this education plan. (III-3-B) 5. HPV information should be provided to those (including health educators, teachers, youth counsellors, and health-care providers) educating the Canadian public about HPV. (III-B) 6. An expert working group should be convened to prepare a consensus statement on the scientific evidence regarding the link between HPV and cervical cancer, including evidence on HPV transmission, symptoms, risk and protective factors, methods of prevention, and possible consequences of HPV infection, including cervical cancer. This statement should outline what the evidence indicates and where evidence is lacking, and should recognize HPV as a health issue for both men and women. (III-B) 7. Funding should support a research agenda to provide a knowledge base to inform and support HPV education initiatives. (III-B) 8. Liquid-based cytology (LBC) screening should be implemented within the context of an organized program. This recommendation should be re-evaluated within the context of emerging knowledge of the role of HPV testing in primary screening. (II-2-B) 9. The implementation of LBC within the context of an organized screening program should include: (a) a clinical/economic analysis to determine the most appropriate screening interval for LBC; the analysis should include evaluation of the most appropriate ages from initiation to cessation of screening; (b) investment in laboratory equipment and support for operational costs; (c) a comprehensive program of training and continuing education for cytopathologists and cytotechnologists; (d) a program for educating health-care providers in the proper techniques for obtaining LBC specimens and monitoring their quality; (e) enhancement of existing laboratory quality assurance and external review programs to monitor the performance of LBC; (f) a review of the slide limits set by Canadian professional and regulatory bodies for screening LBC slides; (g) evaluation of the use of automated screening instruments for LBC samples including clinical and cost-effectiveness. (III-B) 10. Combined cytology-HPV testing in primary screening of women aged 30 to 69 years should be evaluated within the context of an adequate Canadian organized screening program. Scientific evidence supports the performance of HPV testing in primary screening, but there is insufficient knowledge regarding its implementation within the context of a Canadian public health program to recommend it in routine primary screening. (II-2-B) 11. Evaluation of HPV testing in primary screening should be conducted within a Canadian organized program to optimize screening intervals, screening modalities (including cytologie method and primary screening tool(s)), and target age ranges. Evaluation should establish appropriate assessment and management strategies to triage positive women, cost-effectiveness, and the acceptance of screening policies by health-service providers and women, and should permit the assessment of emerging technologies that are indicated by strong evidence. (II-1-A) 12. A formal Canadian network of researchers and service deliverers should be established to facilitate collaboration and timely diffusion of research and evaluation data to identify adaptation requirements for Canadian organized programs and to coordinate the evaluated implementation of HPV testing in primary screening. (III-B) 13. HPV testing should be used to triage among women 30 years of age and older with an ASC-US (atypical squamous cells of undetermined significance) Papanicolaou (Pap) test. (II-1-A) 14. A nationally led and facilitated pan-Canadian effort should establish a national consensus management algorithm. (III-B) 15. Pan-Canadian coordination and development of quality improvement initiatives should be centrally supported to facilitate consistent, comparable evidence-based approaches to cervical cancer prevention and management. (III-B)