Table 3.

Refined CMOs for component 1: uncertainties of risk.

Context	Mechanism	Outcome
Uncertainties of risk to the fetus regarding the effects of lower levels of alcohol consumption	Midwives	Midwives
1.Greater understanding of risk after undergoing ABI skills training so provided relevant alcohol advice to women 2.Women empowered to estimate alcohol units	1.Improved understanding of risk promoted positive change in attitudes 2.Improved capacity of alcohol assessment helped women to make informed alcohol consumption decisions
Pregnant women	Pregnant women
	Opportunities for women to discuss uncertainties of risk with midwives	Increased awareness of the risks of drinking in pregnancy positively influenced attitudes to antenatal alcohol consumption