Table 1.
Demographic information for the full cohort, and for those with complete and incomplete follow-up
| Variable | Label | Full cohort at baseline (n = 440) | Completed follow-up (n = 246) | Did not complete follow-up (n = 194) | p-value a |
|---|---|---|---|---|---|
| Demographic information | |||||
| Age | Mean ± SD | 45.06 ± 15.82 | 46.59 ± 16.00 | 43.15 ± 15.43 | 0.02 |
| Median (min, max) | 45 (18–75) | 47 (18–75) | 42 (18–74) | ||
| Sex (1 missing) | Male | 164 (37.3%) | 85 (34.6%) | 79 (40.7%) | 0.20 |
| Female | 275 (62.5%) | 160 (65.0%) | 115 (59.3%) | ||
| Race (7 missing) | White | 343 (78.0%) | 200 (81.3%) | 143 (73.7%) | 0.05 |
| Non-white | 90 (20.5%) | 42 (17.1%) | 48 (24.7%) | ||
| Ethnicity (33 missing) | Hispanic or Latino | 31 (7.0%) | 20 (8.1%) | 11 (5.7%) | 0.36 |
| Not Hispanic or Latino | 376 (85.5%) | 211 (85.8%) | 165 (85.1%) | ||
| Education (6 missing) | Less than college graduate | 161 (36.6%) | 71 (28.9%) | 90 (46.4%) | < 0.001 |
| College graduate or higher | 273 (62.0%) | 172 (69.9%) | 101 (52.1%) | ||
| Income (66 missing) | $35,000 or less | 112 (25.5%) | 62 (25.2%) | 50 (25.8%) | 0.30 |
| $35,000 to $70,000 | 106 (24.1%) | 59 (24.0%) | 47 (24.2%) | ||
| Greater than 70,000 | 156 (35.5%) | 99 (40.2%) | 57 (29.4%) | ||
| Insurance (26 missing) | Private | 273 (62.0%) | 156 (63.4%) | 117 (60.3%) | 0.70 |
| Public | 75 (17.0%) | 46 (18.7%) | 29 (14.9%) | ||
| Other | 66 (15.0%) | 36 (14.6%) | 30 (15.5%) | ||
| Geographic region | Southeast | 275 (62.5%) | 146 (59.3%) | 129 (66.5%) | 0.10 |
| Midwest | 47 (10.7%) | 23 (9.3%) | 24 (12.4%) | ||
| West | 98 (22.3%) | 65 (26.4%) | 33 (17.0%) | ||
| Northeast | 20 (4.5%) | 12 (4.9%) | 8 (4.1%) | ||
a Group comparisons with independent samples t-tests for continuous variables and chi-square tests for categorical variables