Table 2 Discriminant validity of the ACT at the first study visit in AA and nAA adolescents
| Â | African-Americans | Non-African-Americans | ||||||
|---|---|---|---|---|---|---|---|---|
Physician Assessment of Asthma | ||||||||
| Â | n | Mean (SD) ACT Score | p | n | Mean (SD) ACT Score | p | ||
 Controlled | 21 | 22.4 (2.2) | < 0.0001 | 19 | 22.8 (2.4) | 0.0003 | ||
 Not well controlled | 32 | 18.3 (3.7) | 14 | 18.2 (4.1) | ||||
Spirometry | ||||||||
| Â | n | Mean (SD) ACT Score | F | p | n | Mean (SD) ACT Score | F | p |
% predicted FEV1 | ||||||||
  < 60% | 1 | 24 (0) | 0.5 | 0.68 | 1 | 13 (0) | 1.51 | 0.23 |
 60–79% | 8 | 19.25 (2.32) | 2 | 21.5 (0.71) | ||||
 80–100% | 26 | 19.73 (3.92) | 23 | 21.17 (4.05) | ||||
  > 100% | 18 | 20.17 (4.20) | 7 | 20.43 (3.16) | ||||
FEV1/FVC | ||||||||
  < 60% | 0 | – | – | 0.32†| 1 | 13 (0) | 2.83 | 0.07 |
 60–79% | 25 | 19.72 (3.04) | 11 | 20.09 (4.53) | ||||
 80–100% | 28 | 20.04 (4.39) | 21 | 21.52 (3.20) | ||||
  > 100% | 0 | – | 0 | – | ||||
FEF25–75 | ||||||||
  < 60% | 21 | 19.62 (3.12) | 0.88 | 0.46 | 5 | 18.2 (3.96) | 0.89 | 0.46 |
 60–79% | 12 | 21.33 (2.64) | 12 | 21 (4.41) | ||||
 80–100% | 9 | 18.78 (5.17) | 10 | 21.3 (3.37) | ||||
  > 100% | 11 | 19.73 (4.69) | 6 | 21.67 (3.67) | ||||