Table 1.

Baseline characteristics

CharacteristicMeDi Score <5 (n=455)MeDi Score ≥5 (n=445)P Value
Mean age, yr64.2 (8.2)64.1 (7.9)0.58
Male sex177 (39)193 (43)0.17
Race/ethnicity
 White69 (15)68 (15)Ref
 Black83 (18)74 (17)0.67
 Hispanic291 (64)295 (66)0.88
 Other12 (3)8 (2)n/a
High school education208 (46)196 (44)0.62
Medicare or private insurance249 (55)219 (49)0.10
Smoking status
 Never215 (47)210 (47)Ref
 Past163 (36)172 (39)0.60
 Current77 (17)63 (14)0.37
Physical activity (any exercise versus not)232 (51)270 (61)0.003
ACE inhibitor or ARB usage80 (18)76 (17)0.84
Hypertension312 (69)309 (69)0.78
Diabetes90 (20)80 (18)0.49
Mean BMI, kg/m228.2 (5.0)27.8 (4.5)0.37
Mean LDL, mg/dl130.3 (34.5)130.1 (34.5)0.78
Mean HDL, mg/dl45.6 (14.4)45.8 (13.7)0.75
Mean eGFR at baseline, ml/min per 1.73 m282.4 (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.