Table 1.
Patient Characteristics
| Characteristic | All patients | Iron stain positive | P-value† |
|---|---|---|---|
| Total | 849 | 293 (35%) | |
| Male sex (No.) | 309 | 175 (57%) | <0.0001 |
| Age category: (years) | 0.34 | ||
| <40 | 198 (23%) | 60 (30%) | |
| 40<60 | 505 (60%) | 179 (35%) | |
| ≥60 | 146 (17%) | 54 (37%) | |
| Age mean (years) | 48.4 ± 11.7 | 49.0 ± 11.3 | 0.49 |
| BMI catagory: (kg/m2) | 0.004 | ||
| <25 | 34 (4%) | 18 (53%) | |
| 25<30 | 197 (23%) | 80 (41%) | |
| ≥30 | 616 (73%) | 194 (31%) | |
| BMI mean (kg/m2) | 34.3 ± 6.3 | 33.2 ± 6.0 | 0.0002 |
| Race: (No.) | 0.08 | ||
| White | 696 (82%) | 236 (34%) | |
| Black | 24 (3%) | 9 (38%) | |
| Asian | 43 (5%) | 23 (53%) | |
| AI or AN | 25 (3%) | 7 (28%) | |
| Other | 61(7%) | 18 (30%) | |
| Ethnicity: (No.) | 0.04 | ||
| Non-Hispanic | 750 (88%) | 268 (36%) | |
| Hispanic | 99 (12%) | 25 (25%) |
*
Values are N (%) or mean ± SD
†
P-values from Fisher’s exact test for categorical variables and Wilcoxon rank-sum test for continuous variables.