Skip to main content

Table 1 Characteristics of U.S. Children between birth and 17 years old by birth characteristics, NSCH (2011–2012)

From: Is preterm birth associated with asthma among children from birth to 17 years old? -A study based on 2011-2012 US National Survey of Children’s Health

Variable

Total

Term born(n = 80,295)

Preterm birth(n = 10,426)

P value

Normal Birth Weight(n = 82,519)

Low Birth Weight(n = 8202)

P value

 

Unweighted n(weight%)

Unweighted n(weight%)

Unweighted n(weight%)

Unweighted n(weight%)

Unweighted n(weight%)

Asthma

   

< 0.001*

  

< 0.001*

 Yes

12,839 (15%)

10,763 (14%)

2076 (21%)

 

11,294 (14%)

1545 (19%)

 

 No

77,882 (85%)

69,532 (86%)

8350 (79%)

 

71,225 (86%)

6657 (81%)

 

Gender of Child

   

0.337

  

< 0.001*

 Male

46,673 (51%)

41,091 (51%)

5582 (52%)

 

42,763 (52%)

3910 (46%)

 

 Female

43,953 (49%)

39,115 (49%)

4838 (48%)

 

39,671 (48%)

4282 (54%)

 

Child’s age at interview (years)

   

0.0075*

  

0.0307

 <=3

19,036 (22%)

16,848 (22%)

2188 (23%)

 

17,379 (22%)

1657 (22%)

 

 4~6

14,912 (17%)

13,031 (17%)

1881 (19%)

 

13,383 (17%)

1529 (20%)

 

 7~12

29,915 (33%)

26,351 (33%)

3564 (33%)

 

27,077 (33%)

2838 (33%)

 

 13~17

26,858 (28%)

24,065 (28%)

2793 (58%)

 

24,680 (28%)

2178 (26%)

 

Race/Ethnicity of Child

   

0.001*

  

< 0.001*

 Hispanic

11,758 (23%)

10,417 (23%)

1341 (21%)

 

10,525 (23%)

1233 (24%)

 

 Non-Hispanic white

59,186 (54%)

52,727 (54%)

6459 (51%)

 

54,690 (55%)

4496 (42%)

 

 Non-Hispanic black

8231 (13%)

7069 (13%)

1162 (17%)

 

6977 (12%)

1254 (23%)

 

 Non-Hispanic other

9472 (10%)

8271 (10%)

1201 (11%)

 

8474 (10%)

998 (11%)

 

Parents’ Education

   

0.89

  

0.0149

 Less than high school

11,903 (20%)

10,459 (20%)

1444 (20%)

 

10,569 (20%)

1334 (22%)

 

 High school graduate

29,176 (32%)

25,784 (32%)

3392 (33%)

 

26,539 (32%)

2637 (33%)

 

 More than high school

44,745 (48%)

39,774 (48%)

4971 (47%)

 

41,042 (48%)

3703 (45%)

 

Family Structure

       

 Currently married

64,235 (66%)

57,302 (67%)

6933 (62%)

< 0.001*

59,112 (67%)

5123 (58%)

< 0.001*

 Cohabiting

5533 (8.8%)

4839 (8.7%)

694 (9.7%)

 

4909 (8.7%)

624 (10%)

 

 Living apart

10,559 (14%)

9153 (13%)

1406 (15%)

 

9459 (13%)

1100 (16%)

 

 Never married

6674 (9.1%)

5764 (8.8%)

910 (11%)

 

5843 (8.8%)

831 (12%)

 

 No parents in household

2678 (2.4%)

2321 (2.4%)

357 (2.7%)

 

2263 (2.3%)

415 (3.8%)

 

Difficulty paying for bills

   

< 0.001*

   

 Never

43,447 (43%)

38,913 (43%)

4534 (39%)

 

39,832 (43%)

3615 (42%)

 

 Not very often

26,836 (32%)

23,745 (32%)

3091 (31%)

 

24,510 (32%)

2326 (30%)

 

 Somewhat often

13,920 (19%)

12,075 (18%)

1845 (21%)

 

12,415 (19%)

1505 (20%)

 

 Very often

4927 (6.9%)

4144 (6.7%)

783 (8.7%)

 

4334 (6.8%)

593 (8.3%)

 

Use of cigarettes, cigars, or pipe tobacco in the household

   

0.0013*

  

0.0094*

 Yes

20,950 (24%)

18,254 (24%)

2696 (27%)

 

18,714 (24%)

2236 (27%)

 

 No

68,942 (76%)

61,303 (76%)

7639 (73%)

 

63,061 (76%)

5881 (73%)

 

Litter or garbage on the street or sidewalk

   

0.7236

  

0.3326

 Yes

13,341 (16%)

11,772 (16%)

1569 (16%)

 

12,058 (16%)

1283 (17%)

 

 No

76,024 (84%)

67,321 (84%)

8703 (84%)

 

69,241 (84%)

6783 (83%)

 
  1. *p < 0.05