Table 1.
Baseline characteristics of participants, weighted.
| Characteristic | Non asthma formers | Asthma formers | P-value |
|---|---|---|---|
| N=18199 | N=2883 | ||
| Age (years) | 47.185 ± 16.767 | 45.181 ± 16.927 | <0.00001 |
| BMI (kg/m2) | 28.651 ± 6.580 | 30.224 ± 7.835 | 0.00014 |
| Serum Cholesterol (mg/dl) | 194.433 ± 41.369 | 193.881 ± 44.088 | 0.51551 |
| METS-IR Index | 42.568 ± 12.190 | 45.108 ± 14.240 | <0.00001 |
| Gender (%) | <0.00001 | ||
| Male | 49.244 | 42.047 | |
| Female | 50.756 | 57.953 | |
| Race (%) | <0.00001 | ||
| Mexican American | 14.080 | 10.541 | |
| White | 67.944 | 69.123 | |
| Black | 10.851 | 12.836 | |
| Other Race | 7.125 | 7.499 | |
| Education Level (%) | 0.22757 | ||
| Less than high school | 20.142 | 19.952 | |
| High school | 27.82 | 26.464 | |
| More than high school | 52.038 | 53.584 | |
| Marital Status (%) | <0.00001 | ||
| Cohabitation | 65.694 | 59.137 | |
| Solitude | 34.306 | 40.863 | |
| Alcohol (%) | 0.01393 | ||
| Yes | 62.951 | 65.704 | |
| No | 21.235 | 19.821 | |
| Unclear | 15.814 | 14.475 | |
| High Blood Pressure (%) | <0.00001 | ||
| Yes | 30.637 | 36.563 | |
| No | 69.363 | 63.437 | |
| Diabetes (%) | 0.00064 | ||
| Yes | 8.585 | 10.49 | |
| No | 91.415 | 89.51 | |
| Smoked | <0.00001 | ||
| Yes | 44.968 | 51.544 | |
| No | 55.032 | 48.456 | |
| Physical Activity (%) | 0.68303 | ||
| Never | 29.095 | 28.843 | |
| Moderate | 31.978 | 32.772 | |
| Vigorous | 38.927 | 38.385 | |
| Blood Relative Has Asthma (%) | <0.00001 | ||
| Yes | 17.824 | 42.808 | |
| No | 80.212 | 53.679 | |
| Unclear | 1.965 | 3.513 | |
| Total Kcal (%) | 0.06913 | ||
| Tertile 1 | 25.646 | 27.239 | |
| Tertile 2 | 29.778 | 27.753 | |
| Tertile 3 | 32.487 | 32.27 | |
| Unclear | 12.089 | 12.738 | |
| Total Sugar (%) | 0.01264 | ||
| Tertile 1 | 25.233 | 25.086 | |
| Tertile 2 | 26.327 | 23.721 | |
| Tertile 3 | 26.544 | 28.025 | |
| Unclear | 21.896 | 23.168 | |
| Total Water (%) | 0.03568 | ||
| Tertile 1 | 25.482 | 27.576 | |
| Tertile 2 | 30.625 | 29.537 | |
| Tertile 3 | 31.803 | 30.149 | |
| Unclear | 12.089 | 12.738 | |
| Total Fat (%) | 0.09473 | ||
| Tertile 1 | 24.748 | 26.431 | |
| Tertile 2 | 29.905 | 29.221 | |
| Tertile 3 | 33.258 | 31.611 | |
| Unclear | 12.089 | 12.738 | |
| PIR (%) | <0.00001 | ||
| <1.3 | 18.72 | 24.539 | |
| ≥1.3,<3.5 | 34.778 | 33.355 | |
| ≥3.5 | 40.186 | 35.652 | |
| Unclear | 6.316 | 6.454 |
Statistically significant: p<0.05;Mean+SD for continuous variables: P value was calculated by weighted linear regression model. %for Categorical variables: P value was calculated by weighted chi-square test. BMI, Body mass index(kg/m2); PIR, Ratio of family income to poverty.