Table 2.
Frequency of outcomes due to wheezing among children with asthma, 6-19 years of age, United States, 2003-2010
| ETS exposeda (n=520) % (SE) |
Unexposed (n=405) % (SE) |
p-valueb | |
|---|---|---|---|
| Missed school days past 12m | |||
| 0 days | 67.5 (2.9) | 71.3 (3.0) | 0.14 |
| 1-7 days | 22.7 (2.8) | 23.9 (2.9) | |
| 8+ days | 9.8 (2.1) | 4.9 (1.0) | |
| Healthcare visits past 12m for wheezing | |||
| No visits | 60.0 (3.3) | 65.6 (3.4) | 0.02 |
| 1-2 visits | 25.2 (2.4) | 26.9 (2.9) | |
| 3+ visits | 14.7 (2.1) | 7.5 (1.9) | |
| Number of nights disturbed sleep past 12m | |||
| None | 60.2 (3.1) | 65.3 (3.6) | 0.11 |
| <1 night per week | 21.4 (2.7) | 23.0 (2.7) | |
| 1+ nights per week | 18.5 (2.6) | 11.6 (2.4) | |
| Activity limitation past 12m | |||
| None | 64.7 (3.2) | 68.9 (2.9) | 0.12 |
| A little | 20.3 (2.9) | 21.5 (2.5) | |
| Fair/moderate amount/a lot | 15.1 (2.1) | 9.6 (1.8) | |
| Wheezing during exercise past 12m | |||
| No | 52.4 (2.7) | 58.3 (3.4) | 0.10 |
| Yes | 47.6 (2.7) | 41.7 (3.4) |
a
Defined as serum cotinine level 0.5-10.0 ng/mL
b
p-value for family-wide chi square test