category

count

percent (%)^a

birth defects

chromosomal

14

0.22

circulatory

85

1.33

digestive

88

1.38

ear, face, or neck

42

0.66

eye

34

0.53

genital

87

1.36

musculoskeletal

514

8.06

nervous

25

0.39

respiratory

11

0.17

skin

98

1.54

urinary

83

1.30

other

15

0.24

total^b

1096

developmental disabilities

developmental delays

267

4.19

emotional disturbance

25

0.39

hyperactivity

134

2.10

mental retardation

20

0.31

total^b

446

total^b

1542