Five randomised controlled trials were identified: three on provider of follow-up care and two on standard compared to intensive follow-up. However, much information on follow-up was from comparative and observational studies (level IV), and some additional information was identified through qualitative research such as surveys, focus groups and interviews.
Limited high-quality quantitative information was available on follow-up care after breast cancer:
- many international guidelines were identified; however, most were not specific and all acknowledged a paucity of definitive evidence
- eight systematic reviews were identified, with limited definitive information on follow-up procedures
- no trials were identified to suggest the optimal frequency or duration of follow-up.