Objective: to examine women's knowledge of and preference for the DOMI
NO (Domiciliary In and Out) delivery option in order to explain why up
take is lower than might be expected. Design: descriptive study using
a self completion postal questionnaire. Setting: Mid Staffordshire Hea
lth Authority (now part of South Staffordshire Health Authority). Subj
ects: a systematic random sample of 1568 women aged 16-44 drawn from t
he Staffordshire Family Health Services Authority register of patients
registered with a general practitioner. All women were included, rega
rdless of childbirth experience. Main outcome measures: preference and
knowledge levels for this delivery option. Main findings: the respons
e rate was 74%. Thirty-nine per cent had heard of the DOMINO option pr
ior to receiving the questionnaire. Sixteen per cent expressed a prefe
rence for this option (95% CI 11.1-21.9). Some women who expressed a p
reference were excluded owing to high risk factors, giving an adjusted
preference of 11% (95% CI 5.2-16.4). Preference was not related to ei
ther age, pregnancy experience or previous knowledge. Conclusions: mor
e women expressed a preference for the option than would be expected f
rom examination of national and local uptake figures. Lack of knowledg
e appears to be an important factor in explaining the low uptake. Purc
hasers, therefore, need to set contracts reflecting more realistic pre
ferences and ensure that women have information on all options availab
le to them, so that at the beginning of pregnancy women are enabled to
make a shared decision on the choice of delivery. Both purchasers and
providers need to monitor uptake and levels of knowledge.