0 = female
1 = male

1 = American Indian/Alaska Native
2 = Asian
3 = Native Hawaiian or Other Pacific Islander
4 = Black or African American
5 = White
6 = More than one race

Childs Ethnicity
1 = Hispanic or Latino
2 = Not Hispanic or Latino
3 = Unknown or not reported

1 = Trisomy 21
2 = Mosaicism
3 = Translocation

was child born premature
0 = no
1 = yes

how premature?
0 = not applicable

mothers race
1 = American indian/Alaska native
2 = Asian
3 = Native Hawaiian or Other Pacific Islander
4 = Black or African American
5 = White
6 = More than one race

mothers ethnicity
1 = Hispanic or Latino
2 = Not Hispanic or Latino
3 = Unknown or unreported

highest education level
1 = some high school
2 = high school graduate
3 = 1-3 years of college
4 = college graduate
5 = some graduate or terminal masters
6 = professional degree

fathers race
1 = American Indian/ Alaska Native
2 = Asian
3 = Native Hawaiian or Other Pacific Islander
4 = Black or African American
5 = White
6 = more than one race

fathers ethnicity
1 = Hispanic or Latino
2 = Not Hispanic or Latino
3 = Unknown or Unreported

highest education level
1 = some high school
2 = high school graduate
3 = 1-3 years college
4 = college graduate
5 = some graduate or terminal masters
6 = professional degree

1 = less than $5,000
2 = 5,000-10,000
3 = 10,001-15,000
4 = 15,001-20,000
5 = 20,001-25,000
6 = 25,001-30,000
7 = 30,001-35,000
8 = 35,001-40,000
9 = 40,001-45,000
10 = 45,001-50,000
11 = 50,001-60,000
12 = 60,001-70,000
13 = 70,001-80,000
14 = 80,001-90,000
15 = 90,001-100,000
16 = 100,001-150,000
17 = 150,001-200,000
18 = 200,001-250,000
19 = 250,001-300,000
20 = 300,000+