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Table 1 Selected Demographic Characteristics for 2568 Children with Valid FeNO measurements, Children's Health Study

From: Exhaled nitric oxide in a population-based study of Southern California Schoolchildren

 

Girls (N = 1316)

Boys (N = 1252)

Counts

Number

%

Number

%

Race/ethnicity

    

Non-Hispanic White

452

34.4

440

35.1

Hispanic

731

55.6

688

55.0

African-American

27

2.0

22

1.8

Asian-American

40

3.0

40

3.2

Other/Unknown

66

5.0

62

4.9

Age

    

< 8 yr

447

34.0

372

29.7

8–9 yr

644

48.9

592

47.3

>= 9 yr

225

17.1

288

23.0

Clinical Group

    

Healthy

613

46.6

557

44.5

Allergy Only

608

46.2

562

44.9

Asthma Only

20

1.5

26

2.1

Allergy + Asthma

75

5.7

107

8.5

Summary Statistics

Mean ± SD

Range

Mean ± SD

Range

Age, yr

8.3 ± 0.6

6.4 – 10.4

8.4 ± 0.7

7.0 – 10.5

Height, cm

129 ± 7

108 – 157

131 ± 7

113 – 158

Weight, kg

30 ± 8

17 – 70

32 ± 8

19 – 72

Residual height-for-age, cm[a]

0 ± 6

-18 – +24

0 ± 6

-17 – +22

Residual weight-for-height, kg[b]

0 ± 5

-21 – +28

0 ± 6

-17 – +35

  1. [a] Observed height minus predicted height for subject's age; predicted values determined from cubic polynomial fit to data for all subjects of the same sex in this population (see text).
  2. [b] Observed weight minus predicted weight for subject's height; predicted values determined as described in note [a].