| Non-overweight(BMI <25)(n (weighted %†)) | Overweight(25⩽BMI<30)(n (weighted %)) | Obese(BMI ⩾30)(n (weighted %)) | p Value | |
| Gender | ||||
| Male | 294 (30)* | 398 (43) | 291 (27) | |
| Female | 786 (38)* | 595 (28) | 731 (34) | <0.01 |
| Race/ethnicity | ||||
| White, non-Hispanic | 814 (38)* | 682 (33)* | 675 (29)* | |
| African–American, non-Hispanic | 93 (30)* | 109 (28)* | 154 (42)* | |
| Hispanic | 104 (32)* | 113 (35)* | 126 (33)* | |
| Other | 58 (27)* | 76 (43)* | 58 (30)* | 0.01 |
| Age (y) | ||||
| 18–24 | 192 (50) | 101 (29) | 70 (21) | |
| 25–44 | 422 (34) | 370 (33) | 390 (33) | |
| 45–64 | 347 (29) | 365 (35) | 445 (36) | |
| 65+ | 119 (31) | 157 (42) | 117 (27) | <0.01 |
| Smoking status | ||||
| Current—every day | 145 (40)* | 110 (29)* | 137 (31)* | |
| Current —some days | 69 (44)* | 52 (32)* | 54 (24)* | |
| Past smoker | 269 (31)* | 289 (38)* | 270 (31)* | |
| Never smoker | 591 (35)* | 541 (34)* | 559 (31)* | 0.10 |
| Education | ||||
| Less than 12th grade | 112 (32) | 98 (30) | 159 (38)* | |
| High school graduate | 243 (27) | 260 (37) | 294 (36)* | |
| Some college | 282 (38) | 278 (31) | 278 (31)* | |
| College grad + | 443 (40) | 357 (36) | 288 (24)* | <0.01 |
| Income (US$) | ||||
| <25 000 | 384 (35) | 347 (29) | 470 (36) | |
| 25 000–44 999 | 191 (31) | 186 (36) | 187 (33) | |
| 45 000–74 999 | 199 (33) | 210 (39) | 191 (28) | |
| ⩾75 000 | 306 (38) | 250 (38) | 174 (24) | <0.01 |
| Employment status | ||||
| Full time | 477 (33)* | 498 (37)* | 460 (30)* | |
| Part time | 155 (42)* | 120 (31)* | 108 (27)* | |
| Unemployed (by choice) | 260 (39)* | 209 (36)* | 159 (25)* | |
| Unemployed | 184 (32)* | 163 (27)* | 292 (41)* | <0.01 |
| Parent with asthma | ||||
| Yes | 275 (34) | 270 (33) | 291 (33) | |
| No | 754 (35) | 671 (35) | 670 (30) | |
| Don’t know | 51 (36) | 52 (33) | 61 (31) | 0.92 |
| State of residence | ||||
| Alabama | 268 (34) | 235 (29) | 305 (37) | |
| California | 282 (36) | 264 (35) | 221 (29) | |
| Illinois | 255 (32) | 236 (32) | 255 (36) | |
| Texas | 275 (36) | 258 (33) | 241 (31) | 0.03 |
| Residence in a metropolitan statistical area | ||||
| Yes | 918 (29)* | 817 (35)* | 796 (36)* | |
| No | 152 (36)* | 171 (34)* | 221 (30)* | 0.10 |
*Data missing for some participants.
†Percentages (in parentheses) are weighted to reflect the 2003 population of patients with asthma in participating states.
BMI, body mass index; GINA, Global Initiative for Asthma Guidelines; N/A, not available.