Table 1.

Criteria for population-based screening

Criterion	Evidence required
Epidemiology of disease	Prevalence and natural history are understood, and the condition poses a significant disease burden
Current screening practice and rates	Barriers and facilitators are understood
Acceptability	Women's preferences and values are understood
Efficacy and cost	Sensitive and specific cost-effective screening tests are available
Effective treatment	Available and accessible after diagnosis
Reliable follow-up systems	In place for those diagnosed at risk