Table 3. Questions and respondent answers used to evaluate parents’ perceived usefulness of the information they received and their knowledge of Duchenne muscular dystrophy screening.

Question - Information received	Answer	%
Were you given any written information about screening for DMD? (n = 138)	Yes No Don't know/Don't remember	94.9 0.7 4.3
Did you feel you had enough time to read the written information? (n = 130)	Yes No Don't Know/Don't remember	78.5 17.7 3.8
How well did you understand the written information about DMD screening? (n = 125)	Very well/Well/Well enough Not well/Not at all	96.8 3.2
How helpful was the written information when deciding to have your son screened? (n = 128)	Very/Somewhat helpful Neutral Not very/Not helpful at all	68.8 24.2 7.0
Did anyone talk to you about the written information for screening? (n = 138)	Yes No Don't Know/Don't remember	90.6 4.3 5.1
How helpful was this person in explaining screening for DMD? (n = 123)	Very/Somewhat helpful Neutral Not very/Not helpful at all	94.3 4.1 1.6
Did this person give you enough time to ask questions about DMD screening? (n = 124)	Yes No Don't know/Don't remember	92.7 1.6 5.6
Question - Knowledge (n = 135)	Correct Answer	%
DMD is:	The most common form of muscular dystrophy	63.0
DMD is a genetic condition that weakens the:	All of the above (arm and leg, heart, and breathing muscles)	40.7
DMD can happen:	All of the above (in families with or without a relative with DMD, in all racial backgrounds)	60.7
Screening finds affected infants before symptoms start:	True	92.8
Once a child is found to have DMD:	Treatment may slow down the progress of the disorder	69.9