431A. During this pregnancy, did you have difficulty with your vision during daylight?
[ASK FOR MOST RECENT BIRTH ONLY]
YES 1
NO 2
DON'T KNOW 8
Categories
Value
Category
0
No
1
Yes
7
Don't know
8
Missing
9
NIU (not in universe)
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Description
Definition
ANVISION (M47) indicates whether the child's mother had difficulty with daylight vision while the child was in utero.