Table 2. Responses to open questions in a questionnaire among 644 pregnant women on the Thai Burmese border.

Why does SMRU do ultrasound scanning for pregnant women?	% (N) 1696 answers
Position of the baby	22.1 (375)
Confirmation of pregnancy	20.2 (343)
Health of the baby	18.8 (318)
Sex of the baby	17.3 (293)
Normal hands and feet	8.7 (148)
Baby's breathing	6.8 (116)
At the most recent scan, what did they explain before starting?	% (N) 1414 answers
I would need to lie down	40.2 (569)
I would need to open my sarong	23.1 (326)
A machine would be used to check the baby	14.8 (209)
During or after the most recent ultrasound, what did they tell you?	% (N) 1224 answers
Everything is okay	24.5 (300)
They told me the sex of the baby	19.9 (243)
They told me the position	16.3 (200)
They told me that I am pregnant	10.5 (129)
Nothing	8.6 (105)

This table refers to questions 6–8 of the questionnaire in file S1.