to systematically review all surveys of CAT use by midwives.
six electronic databases were searched using text terms and MeSH for CAT and midwifery.
surveys were included if they reported quantitative data on the prevalence of CAT use by midwives.
full-text articles of all relevant surveys were obtained. Data were extracted according to pre-defined criteria.
19 surveys met the inclusion criteria. Most were recent and from the USA. Prevalence data varied but were usually high, often close to 100 % . Much use of CATs does not seem to be supported by strong evidence for efficacy.
most midwives seem to use CATs. As not all CATs are without risks, the issue should be debated openly.