Table 1.
Sample characteristics
| Data show N (%) unless otherwise specified | Total (n = 2133) | Food Intolerance | P-Value | |
|---|---|---|---|---|
| No (n = 1604) | Yes (n = 529) | |||
| Age, median (IQR) | 34 (28 – 44) | 35 (28.5 – 44) | 33 (27 – 42) | <0.01 |
| Female | 1434 (67.2%) | 1060 (66.1%) | 374 (70.7%) | 0.05 |
| Race | <0.01 | |||
| Caucasian | 1583 (74.2%) | 1229 (76.6%) | 354 (66.9%) | |
| African American | 200 (9.4%) | 133 (8.3%) | 67 (12.7%) | |
| Asian | 174 (8.2%) | 120 (7.5%) | 54 (10.2%) | |
| Multiple Races | 93 (4.4%) | 67 (4.2%) | 26 (4.9%) | |
| Other | 52 (2.4%) | 37 (2.3%) | 15 (2.8%) | |
| Prefer not to say | 31 (1.5%) | 18 (1.1%) | 13 (2.5%) | |
| Hispanic | 194 (9.1%) | 136 (8.5%) | 58 (11.0%) | 0.09 |
| Region | 0.17 | |||
| Midwest | 465 (21.8%) | 355 (22.1%) | 110 (20.8%) | |
| Northeast | 388 (18.2%) | 298 (18.6%) | 90 (17.0%) | |
| South | 855 (40.1%) | 649 (40.5%) | 206 (38.9%) | |
| West | 425 (19.9%) | 302 (18.8%) | 123 (23.3%) | |
| Born in USA | 1963 (92.0%) | 1476 (92.0%) | 487 (92.1%) | 0.98 |
| Number of Prescription medications | <0.01 | |||
| 0 | 1095 (51.3%) | 857 (53.4%) | 238 (45.0%) | |
| 1–2 | 722 (33.8%) | 513 (32.0%) | 209 (39.5%) | |
| 3 or more | 316 (14.8%) | 234 (14.6%) | 82 (15.5%) | |
Median and interquartile range (IQR) are reported for age due to the skewness of the distribution. P-values are derived based on the Wilcoxon rank sum test for age and the Pearson’s chi-square test for other variables.