Demographic characteristics
| Urban, n (%) | Rural, n (%) | P value | |
| Total participants, n (%) | 12 476 (100) | 1837 (100) | 0.040 |
| Age in years, mean (SD) | 28.9 (18.06) | 27.9 (19.33) | 0.040 |
| Child (<13 years) | 1188 (9.5) | 224 (12.2) | <0.001 |
| Adolescent (13–<18 years) | 3567 (28.6) | 609 (33.2) | |
| Young adult (18–<26 years) | 2951 (23.7) | 415 (22.6) | |
| Adult (26+ years) | 4770 (38.2) | 589 (32.1) | |
| Gender, n (%) | 0.316 | ||
| Female | 6375 (51.1) | 964 (52.5) | |
| Male | 6097 (48.9) | 872 (47.5) | |
| Transgender | 4 (0.0) | 1 (0.1) | |
| Race/ethnicity, n (%) | <0.001 | ||
| White non-Hispanic | 10 399 (83.4) | 1697 (92.4) | |
| Black non-Hispanic | 565 (4.5) | 25 (1.4) | |
| Hispanic or Latino | 982 (7.9) | 60 (3.3) | |
| Other | 530 (4.2) | 55 (3.0) | |
| Annual income, n (%) | <0.001 | ||
| Missing/unreported | 5881 (47.1) | 883 (48.1) | |
| <$50 000 | 1726 (26.2) | 338 (35.4) | |
| $50 000–$75 000 | 934 (14.2) | 203 (21.3) | |
| >$75 000 | 3935 (59.7) | 413 (43.3) | |
| Education, n (%) | <0.001 | ||
| Missing/unreported | 3493 (28.0) | 557 (30.3) | |
| Less than HS diploma | 2362 (26.3) | 416 (32.5) | |
| HS diploma/GED | 2500 (27.8) | 402 (31.4) | |
| Associate’s degree | 565 (6.3) | 118 (9.2) | |
| Bachelor’s degree | 2047 (22.8) | 226 (17.7) | |
| Master’s degree | 1092 (12.2) | 94 (7.3) | |
| Professional/doctoral degree | 417 (4.6) | 24 (1.9) | |
| Insurance status, n (%) | <0.001 | ||
| Private | 9477 (77.1) | 1240 (69.2) | |
| Other | 2728 (22.2) | 533 (29.7) |
GED, General Educational Diploma; HS, high school.