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Table 1 Comparation between asthma group and non-asthma group in characteristics of children and adolescents

From: Multivitamin consumption and childhood asthma: a cross-sectional study of the NHANES database

Variables

Total (n=4715)

Asthma (n=487)

Non-asthma (n=4228)

P

Age, year, Mean (S.E)

10.10 (0.10)

10.59 (0.25)

10.04 (0.11)

0.054

Age, n (%)

   

0.017

 2-6

1434 (26.9)

104 (19.6)

1330 (27.7)

 

 7-11

1544 (29.4)

193 (33.7)

1351 (28.9)

 

 12-17

1737 (43.7)

190 (46.7)

1547 (43.4)

 

Gender, n (%)

   

0.107

 Male

2348 (50.5)

275 (55.3)

2073 (50.0)

 

 Female

2367 (49.5)

212 (44.7)

2155 (50.0)

 

Race, n (%)

   

<0.001

 White

1482 (53.2)

138 (48.2)

1344 (53.8)

 

 Black

1065 (13.0)

161 (20.9)

904 (12.1)

 

 Other

2168 (33.8)

188 (30.9)

1980 (34.1)

 

PIR, n (%)

   

0.223

 < 1

1226 (19.6)

144 (23.3)

1082 (19.2)

 

 ≥ 1

3101 (73.9)

302 (70.0)

2799 (74.3)

 

 Unknown

388 (6.6)

41 (6.7)

347 (6.6)

 

Household smoke exposure, n (%)

   

0.399

 Yes

1352 (27.1)

149 (29.1)

1203 (26.9)

 

 No

109 (1.8)

13 (2.6)

96 (1.7)

 

 Unknown

3254 (71.1)

325 (68.3)

2929 (71.4)

 

Family history of asthma, n (%)

   

<0.001

 Yes

1195 (27.0)

270 (55.3)

925 (23.9)

 

 No

2306 (50.5)

129 (27.8)

2177 (53.0)

 

 Unknown

1214 (22.5)

88 (16.9)

1126 (23.1)

 

Physical activity, n (%)

   

0.645

 Not ideal

1265 (24.5)

131 (23.3)

1134 (24.7)

 

 Ideal

1749 (32.8)

170 (31.2)

1579 (33.0)

 

 Unknown

1701 (42.7)

186 (45.5)

1515 (42.4)

 

Sedentary time, n (%)

   

0.991

 < 3

867 (18.7)

81 (18.4)

786 (18.7)

 

 3-6

1078 (20.4)

122 (20.2)

956 (20.5)

 

 ≥ 6

1950 (39.5)

204 (40.5)

1746 (39.4)

 

 Unknown

820 (21.4)

80 (21.0)

740 (21.4)

 

Pregnant smoking, n (%)

   

0.217

 Yes

487 (10.6)

64 (13.0)

423 (10.4)

 

 No

3580 (73.2)

360 (72.4)

3220 (73.3)

 

 Unknown

648 (16.2)

63 (14.6)

585 (16.3)

 

Breast feeding, n (%)

   

0.003

 No

343 (5.7)

24 (3.3)

319 (5.9)

 

 Yes

1091 (21.2)

80 (16.3)

1011 (21.8)

 

 Unknown

3281 (73.1)

383 (80.4)

2898 (72.3)

 

Low birth weight, n (%)

   

<0.001

 No

3399 (70.5)

323 (65.8)

3076 (71.0)

 

 Yes

572 (11.1)

93 (16.8)

479 (10.5)

 

 Unknown

744 (18.4)

71 (17.4)

673 (18.5)

 

Vitamin A, mcg, Mean (S.E)

591.13 (12.68)

589.42 (29.91)

591.32 (12.34)

0.944

Vitamin C, mg, Mean (S.E)

69.53 (2.22)

77.53 (4.29)

68.65 (2.23)

0.032

Vitamin D, mcg, Mean (S.E)

5.05 (0.14)

4.81 (0.25)

5.08 (0.14)

0.216

Vitamin E, mg, Mean (S.E)

8.25 (0.24)

8.31 (0.32)

8.25 (0.25)

0.840

Vitamin B1, mg, Mean (S.E)

1.52 (0.01)

1.58 (0.05)

1.52 (0.01)

0.177

Vitamin B2, mg, Mean (S.E)

1.85 (0.02)

1.88 (0.06)

1.85 (0.02)

0.615

Niacin, mg, Mean (S.E)

21.34 (0.27)

23.01 (1.06)

21.15 (0.25)

0.081

Vitamin B6, mg, Mean (S.E))

1.70 (0.03)

1.77 (0.08)

1.69 (0.03)

0.314

Vitamin B12, mcg, Mean (S.E)

5.62 (0.12)

5.47 (0.29)

5.64 (0.12)

0.569

Folic acid, mcg, Mean (S.E)

202.71 (3.20)

221.16 (12.42)

200.67 (3.34)

0.125

Choline, mg, Mean (S.E)

248.44 (3.49)

254.66 (11.34)

247.76 (3.58)

0.557

Vitamin K, mcg, Mean (S.E)

67.22 (1.76)

64.78 (3.53)

67.49 (1.81)

0.440

BMI Z-score, Mean (S.E)

0.62 (0.03)

0.90 (0.07)

0.59 (0.03)

<0.001

Energy intake, kcal, Mean (S.E)

1905.24 (15.23)

2037.80 (60.20)

1890.63 (13.96)

0.018

  1. S.E Standard error, PIR Poverty-to-income ratio, BMI Body mass index
  2. Statistics: t test for the comparation of continuous variable and chi-square test for that of classified variables