Table 1.
Baseline characteristics
| Characteristic | MeDi Score <5 (n=455) | MeDi Score ≥5 (n=445) | P Value |
|---|---|---|---|
| Mean age, yr | 64.2 (8.2) | 64.1 (7.9) | 0.58 |
| Male sex | 177 (39) | 193 (43) | 0.17 |
| Race/ethnicity | |||
| White | 69 (15) | 68 (15) | Ref |
| Black | 83 (18) | 74 (17) | 0.67 |
| Hispanic | 291 (64) | 295 (66) | 0.88 |
| Other | 12 (3) | 8 (2) | n/a |
| High school education | 208 (46) | 196 (44) | 0.62 |
| Medicare or private insurance | 249 (55) | 219 (49) | 0.10 |
| Smoking status | |||
| Never | 215 (47) | 210 (47) | Ref |
| Past | 163 (36) | 172 (39) | 0.60 |
| Current | 77 (17) | 63 (14) | 0.37 |
| Physical activity (any exercise versus not) | 232 (51) | 270 (61) | 0.003 |
| ACE inhibitor or ARB usage | 80 (18) | 76 (17) | 0.84 |
| Hypertension | 312 (69) | 309 (69) | 0.78 |
| Diabetes | 90 (20) | 80 (18) | 0.49 |
| Mean BMI, kg/m2 | 28.2 (5.0) | 27.8 (4.5) | 0.37 |
| Mean LDL, mg/dl | 130.3 (34.5) | 130.1 (34.5) | 0.78 |
| Mean HDL, mg/dl | 45.6 (14.4) | 45.8 (13.7) | 0.75 |
| Mean eGFR at baseline, ml/min per 1.73 m2 | 82.4 (21.1) | 83.9 (18.7) | 0.06 |
Results are presented as n (%) or mean (SD). Baseline characteristics are for the entire study sample (N=900). For the primary outcome of incident eGFR <60 ml/min per 1.73 m2, 97 participants had an eGFR <60 ml/min per 1.73 m2 at baseline and were excluded (n=803 for this analysis). ACE, angiotensin-converting enzyme; ARB, angiotensin receptor blocker; BMI, body mass index; MeDi, Mediterranean Diet scoring system; Ref, reference; n/a, not applicable.