Mother race
| | | | | | | | | |
White
|
75.3
|
3463
|
(545)
|
32103
|
76.2
|
22160
|
66.8
|
266329
|
76.0
|
African-American
|
7.4
|
3236
|
(638)
|
2938
|
7.0
|
3994
|
12.0
|
24530
|
7.0
|
Asian
|
6.0
|
3241
|
(510)
|
2471
|
5.9
|
2194
|
6.6
|
20900
|
6.0
|
Hispanic
|
11.0
|
3306
|
(565)
|
4531
|
10.8
|
4730
|
14.3
|
37691
|
10.8
|
Native American
|
0.2
|
3371
|
(581)
|
66
|
0.2
|
68
|
0.2
|
537
|
0.2
|
Missing
|
0.1
|
3426
|
(622)
|
0
|
0
|
38
|
0.1
|
417
|
0.1
|
Mother education
| | | | | | | | | |
Primary and secondary (≤ 8 years)
|
2.6
|
3296
|
(561)
|
1307
|
3.1
|
1126
|
3.4
|
8073
|
2.3
|
High school (>8 – 12 years)
|
29.0
|
3338
|
(576)
|
15190
|
36.1
|
11453
|
34.5
|
96981
|
27.7
|
Some college (13 – 15 years)
|
39.9
|
3481
|
(533)
|
13354
|
31.7
|
11012
|
33.2
|
145698
|
41.6
|
College or postgraduate
|
22.6
|
3433
|
(562)
|
9118
|
21.7
|
7269
|
21.9
|
79975
|
22.8
|
(≥ 16 years)
| | | | | | | | | |
Missing
|
5.9
|
3333
|
(573)
|
3140
|
7.5
|
2324
|
7.0
|
19677
|
5.6
|
APNCU
| | | | | | | | | |
None
|
0.6
|
3267
|
(714)
|
251
|
0.6
|
337
|
1.0
|
1825
|
0.5
|
Inadequate
|
7.8
|
3308
|
(571)
|
4511
|
10.7
|
3147
|
9.5
|
25652
|
7.3
|
Intermediate
|
8.0
|
3487
|
(509)
|
3842
|
9.1
|
1036
|
3.1
|
28985
|
8.3
|
Appropriate
|
48.1
|
3507
|
(487)
|
20185
|
47.9
|
3263
|
9.8
|
181619
|
51.8
|
Appropriate plus
|
35.5
|
3301
|
(627)
|
13320
|
31.6
|
25401
|
76.5
|
112323
|
32.1
|
Mother age at birth
| | | | | | | | | |
<20
|
8.9
|
3246
|
(565)
|
5616
|
13.3
|
4020
|
12.1
|
28308
|
8.1
|
20 – 29
|
36.6
|
3389
|
(550)
|
16783
|
39.9
|
12007
|
36.2
|
127149
|
36.3
|
30 – 34
|
33.7
|
3465
|
(546)
|
12143
|
28.8
|
10017
|
30.2
|
121240
|
34.6
|
35 – 39
|
17.4
|
3462
|
(574)
|
6196
|
14.7
|
5762
|
17.4
|
61997
|
17.7
|
>39
|
3.4
|
3422
|
(600)
|
1371
|
3.3
|
1378
|
4.2
|
11710
|
3.3
|
Number of cigarettes smoked during pregnancy (per day)
| | | | | | | | | |
None
|
90.0
|
3438
|
(555)
|
33410
|
79.3
|
29001
|
87.4
|
320511
|
91.5
|
Any amount
|
9.8
|
3208
|
(558)
|
8655
|
20.6
|
4115
|
12.4
|
29301
|
8.4
|
Missing
|
0.2
|
3369
|
(648)
|
44
|
0.1
|
68
|
0.2
|
592
|
0.2
|
Number of cigarettes smoked before pregnancy (per day)
| | | | | | | | | |
None
|
83.0
|
3437
|
(556)
|
30580
|
72.6
|
26896
|
81.1
|
295766
|
84.4
|
Any amount
|
16.6
|
3309
|
(566)
|
11398
|
27.1
|
6120
|
18.4
|
53238
|
15.2
|
Missing
|
0.4
|
3384
|
(620)
|
131
|
0.3
|
168
|
0.5
|
1400
|
0.4
|
Previous infant ≥ 4000 grams
| | | | | | | | | |
None
|
98.6
|
3411
|
(556)
|
41851
|
99.4
|
32730
|
98.6
|
344956
|
98.4
|
Yes
|
0.9
|
3938
|
(546)
|
63
|
0.1
|
175
|
0.5
|
3626
|
1.0
|
Missing
|
0.5
|
3355
|
(712)
|
195
|
0.5
|
279
|
0.8
|
1822
|
0.5
|
Previous preterm birth
| | | | | | | | | |
None
|
98.6
|
3419
|
(556)
|
41256
|
98.0
|
31946
|
96.3
|
346553
|
98.9
|
Yes
|
0.9
|
3011
|
(678)
|
658
|
1.6
|
959
|
2.9
|
2029
|
0.6
|
Missing
|
0.5
|
3355
|
(712)
|
195
|
0.5
|
279
|
0.8
|
1822
|
0.5
|
Gender of infant
| | | | | | | | | |
Male
|
51.2
|
3473
|
(572)
|
21631
|
51.4
|
18172
|
54.8
|
178071
|
50.8
|
Female
|
48.8
|
3355
|
(540)
|
20478
|
48.6
|
15012
|
45.2
|
172333
|
49.2
|