Table 3: Respondents' opinions on what they disliked about MSS*
	Group; no. (and %) of respondents
Opinion	Family physicians n = 394		Obstetricians n = 124		Midwives n = 30
Has high false-positive rate	172	(44)	60	(48)	9	(30)
Causes anxiety	111	(28)	30	(24)	6	(20)
Is complex (hard to explain, hard to understand, difficult to communicate concept of screening test and risk)	43	(11)	12	(10)	1	(3)
Raises timing issues (is performed late in pregnancy, is arranged in small window of time)	36	(9)	11	(9)	3	(10)
Is not cost-effective	36	(9)	9	(7)	1	(3)
Involves extra time to be spent counselling and filling in requisitions	34	(9)	11	(9)	0
Raises ethical issues	37	(9)	1	(1)	7	(23)
Involves increased use of ultrasound	31	(8)	5	(4)	4	(13)
Has high false-negative rate (gives illusion that negative result means normal baby, detects only 70% of babies with Down syndrome)	12	(3)	3	(2)	2	(7)
Does not give results soon enough	7	(2)	2	(2)	0
Offers inadequate payment for time spent counselling	8	(2)	1	(1)	0
Other†	43	(11)	22	(18)	4	(13)
*Multiple responses were possible. †Includes the following: "loss of normal babies with amniocentesis," "too disease oriented" and "increased amniocentesis in women under 35."

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