TABLE 1.
Participant Characteristics at Baseline
| All Enrolled Children | Children With Persistent Symptoms at Baseline | |||||||
|---|---|---|---|---|---|---|---|---|
| UC | SBAT | UC | SBAT | |||||
| Overall | Group | Group | P | Overall | Group | Group | P | |
| (n = 525a) | (n = 263) | (n = 262) | (n = 338) | (n = 167) | (n = 171) | |||
| Child’s age, mean (SD), y | 7.13 (1.9) | 7.21 (1.89) | 7.06 (2.0) | .382 | 6.94 (2.0) | 7.04 (2.0) | 6.85 (2.0) | .4 |
| Male child, % | 58.29 | 55.89 | 60.69 | .265 | 57.4 | 52.69 | 62 | .08 |
| Child’s race, % | ||||||||
| White | 8.95 | 7.98 | 9.92 | .703 | 8.28 | 7.19 | 9.36 | .47 |
| Black | 63.43 | 63.5 | 63.36 | 64.5 | 67.66 | 61.4 | ||
| Other | 27.62 | 28.52 | 26.72 | 29.24 | 25.15 | 29.2 | ||
| Hispanic ethnicity, % | 28.38 | 26.24 | 30.53 | .275 | 28.11 | 23.95 | 32.2 | .09 |
| Medicaid insurance, % | 73.52 | 74.9 | 72.14 | .472 | 75.74 | 79.04 | 72.5 | .16 |
| Smoker at home, % | 53.52 | 54.37 | 52.67 | .696 | 56.21 | 55.69 | 56.7 | .85 |
| Cotinine level, mean (SD) | 1.41 (2.31) | 1.57(2.83) | 1.25 (1.61) | NS | ||||
| Caregiver education less than high school, % | 38.86 | 37.64 | 40.08 | .567 | 39.35 | 37.72 | 40.9 | .55 |
| Maternal depression, mean (SD) score | 19.7 (9.1) | 19.51 (8.9) | 19.87 (9.3) | .648 | 20.67 (9.3) | 20.4 (8.9) | 20.9 (9.8) | .59 |
| Baseline asthma severity in past 2 wk | ||||||||
| SFDs, mean (SD) | 8.04 (4.8) | 8.05 (4.8) | 8.03 (4.9) | .964 | 5.48 (4.1) | 5.46 (4.0) | 5.49 (4.2) | .95 |
| Days with rescue medication, mean (SD) | 3.94 (4.6) | 3.84 (4.5) | 4.03 (4.7) | .638 | 5.4 (4.9) | 5.2 (4.8) | 5.6 (5.0) | .52 |
| Days absent due to asthma, mean (SD) | 0.40 (1.1) | 0.37 (1.03) | 0.42 (1.08) | .523 | 0.58 (1.3) | 0.54 (1.2) | 0.62 (1.27) | .57 |
| Severe persistent asthma at baseline, % | 64.38 | 63.5 | 65.27 | .672 | ||||
a
The number of records per child varied from 1 to 10 with the average of 7.5 interviews per child (similar across the groups).