Table 2.
Bivariate associations of baseline characteristics with incident CKD
| No CKD | Incident CKD | P value | |
|---|---|---|---|
| n = 9991 (95.9%) | n = 429 (4.1%) | ||
| n (%) | n (%) | ||
| Age at time zero, years | 54.8 (11.8)/54.3 | 59.8 (11.0) | <0.0001 |
| Male sex | 4510 (45.1%) | 162 (37.8%) | 0.003 |
| Race/ethnicity | 2696 (27.0%) | 109 (25.4%) | |
| African American | 4335 (43.4%) | 221 (51.5%) | |
| Hispanic | 2633 (26.4%) | 89 (20.8%) | |
| White | 201 (2.0%) | 8 (1.9%) | |
| Other | 126 (1.3%) | 2 (0.5%) | 0.008 |
| Missing | |||
| Marital status | 3081 (30.8%) | 143 (33.3%) | |
| Married | 6208 (62.1%) | 259 (60.4%) | |
| Other | 702 (7.0%) | 27 (6.3%) | 0.51 |
| Unknown | |||
| Language | 6866 (68.7%) | 291 (67.8%) | |
| English | 1707 (17.1%) | 78 (18.2%) | |
| Spanish | 367 (3.7%) | 17 (4.0%) | |
| Other | 1051 (10.5%) | 43 (10.0%) | 0.91 |
| Missing | |||
| Duration in hypertension registry, months | 61.2 (19.2) | 69.6 (16.8) | <0.0001 |
| Period of observation, months | 44.1 (20.0) | 57.2 (18.6) | <0.0001 |
| Comorbidities | |||
| Diabetes | 3539 (35.4%) | 283 (66.0%) | <0.0001 |
| Vascular | 1606 (16.1%) | 115 (26.8%) | <0.0001 |
| Congestive heart failure | 34 (0.3%) | 3 (0.7%) | 0.19 |
| Dyslipidemia | 1685 (16.9%) | 81 (18.9%) | 0.28 |
| Mental health | 2537 (25.4%) | 77 (18.0%) | 0.0005 |
| Substance abuse | 1623 (16.2%) | 43 (10.0%) | 0.0006 |
| Baseline eGFR (mL/min/1.73 m2) | 99.3 (23.5) | 84.2 (20.2) | <0.0001 |
Data are presented as mean (SD) or n (%). eGFR = estimated glomerular filtration rate; CKD = chronic kidney disease.