Table 1:
Demographics of study participants (asthma and non-asthma groups) and excluded participants
| Variables | Study participants (n = 2168) | Asthma (n = 290) | No asthma (n = 1878) | Asthma vs. non-asthma p-value | Excluded (n = 317) | Study vs excluded. p-value | |
|---|---|---|---|---|---|---|---|
| Sex [n (%)] | .010 | .789 | |||||
| Male | 920 (42.4) | 103 (35.5) | 817 (43.5) | 132 (41.6) | |||
| Female | 1248 (57.6) | 187 (64.5) | 1061 (56.5) | 185 (58.4) | |||
| Race/Ethnicity [n (%)] | .277 | .225 | |||||
| Non-Hispanic African American | 1111 (51.2) | 140 (48.3) | 971 (51.7) | 174 (54.9) | |||
| Non-Hispanic White | 721 (33.3) | 114 (39.3) | 607 (32.3) | 84 (26.59) | |||
| Hispanic | 291 (13.4) | 28 (9.7) | 263 (14.0) | 56 (17.7) | |||
| Other | 45 (2.1) | 8 (2.8) | 37 (2.0) | 3 (0.9) | |||
| Smoking Status [n(%)] | .320 | .532 | |||||
| Current Smoker | 489 (22.6) | 72 (24.8) | 417 (22.2) | 57 (24.4) | |||
| Not a Smoker | 1679 (77.4) | 218 (75.2) | 1461 (77.8) | 177 (75.6) | |||
| Age in years [M(SD)] | 50.42 (10.3) | 50.23 (10.4) | 50.45 (10.3) | .736 | 51.78 (10.2) | .029 | |
| Education in years [M(SD)] | 12.69 (2.2) | 12.74 (2.0) | 12.68 (2.2) | .676 | 12.04 (2.5) | <.001 | |
| Body Mass Index (BMI) [M(SD)] | 31.28 (7.5) | 32.83 (8.7) | 31.04 (7.2) | <.001 | 30.87 (7.5) | .377 |