N (%) | Distribution of FeNO | |||||||
---|---|---|---|---|---|---|---|---|
Median (IQR) | 0.2 | 0.4 | 0.6 | 0.8 | Mean (SD) | P-values | ||
Age [mean(range)] | 9.3 (6.4,11.7) | 9.75 (8.4) | 6.5 | 8.5 | 11.3 | 17.3 | 11.1 (1.9) | <0.001 |
Gender | ||||||||
Girl | 489 (52%) | 10.2(7.9) | 6.6 | 8.8 | 11.5 | 17 | 11.2 (1.9) | 0.72 |
Boy | 451 (48%) | 9.3(8.85) | 6.4 | 8.3 | 10.8 | 17.9 | 11 (2) | |
Ethnicity | ||||||||
Hispanic White | 607 (64.6%) | 10(8.55) | 6.6 | 8.5 | 11.9 | 17.8 | 11.4 (2) | 0.16 |
Non-Hispanic White | 333 (35.4%) | 9.5(7.3) | 6.3 | 8.5 | 10.9 | 16.5 | 10.7 (1.9) | |
Asthma | ||||||||
No | 807 (85.9%) | 9.6(7.75) | 6.4 | 8.4 | 11.1 | 16.3 | 10.6 (1.8) | <0.001 |
Yes | 133 (14.1%) | 10.7(22) | 7 | 8.9 | 14.2 | 36.4 | 14.8 (2.4) | |
History of Respiratory Allergy | ||||||||
No | 418 (44.5%) | 9.5(5.975) | 6.6 | 8.4 | 10.5 | 14.7 | 10.2 (1.8) | <0.001 |
Yes | 522 (55.5%) | 10.15(10.575) | 6.4 | 8.6 | 12.8 | 21.6 | 11.9 (2) | |
Exposure to Secondhand Smoke | ||||||||
No | 909 (96.7%) | 9.7(8.4) | 6.5 | 8.5 | 11.3 | 17.3 | 11.1 (1.9) | 0.92 |
Yes | 31 (3.3%) | 10.8(7.65) | 6.5 | 8.4 | 12.4 | 15.2 | 11 (2) | |
Body mass index | ||||||||
Underweight (< 5th percentile) | 11 (1.2%) | 13.5(6.3) | 7.5 | 11.2 | 13.8 | 14.4 | 12.5 (2) | 0.90 |
Normal (5th to <85th percentile) | 550 (58.5%) | 9.7(8.3) | 6.6 | 8.5 | 11.1 | 17.1 | 11 (1.9) | |
Overweight (85th to <95th percentile) | 183 (19.5%) | 9.5(8) | 6.4 | 8.2 | 10.9 | 17.8 | 11.1 (2) | |
Obese (≥ 95th percentile) | 191 (20.3%) | 10(8.35) | 6.5 | 8.7 | 12.1 | 18.2 | 11.3 (2) | |
Parental Education | ||||||||
<12th grade | 238 (25.3%) | 11.15(8.925) | 7.4 | 9.7 | 13.2 | 19.0 | 12.3 (1.9) | 0.08 |
12th grade | 163 (17.3%) | 9.6(8.85) | 6.1 | 7.7 | 11.3 | 17.5 | 11 (2.1) | |
Some college | 302 (32.1%) | 9.3(7.375) | 6.4 | 8.1 | 10.4 | 16.6 | 10.9 (2) | |
College | 125 (13.3%) | 9.3(8.5) | 6.3 | 8.4 | 10.98 | 16.0 | 10.6 (1.9) | |
Some graduate | 112 (11.9%) | 9.35(7.45) | 6.4 | 8.0 | 10.8 | 16.5 | 10.2 (1.8) | |
Annual family income | ||||||||
<$15,000 | 275 (29.3%) | 10.7(9.5) | 7.2 | 9.5 | 12.9 | 19.4 | 12.3 (2) | 0.003 |
$15,000 - $49,999 | 240 (25.5%) | 10.35(8.2) | 6.5 | 8.7 | 12.4 | 18.3 | 11.4 (2) | |
≥$50,000 | 425 (45.2%) | 9.1(6.9) | 6.3 | 8.1 | 10.3 | 15.7 | 10.3 (1.9) |