Table 1.

Characteristics of study population

Total SampleMDT CareUsual CarePa
N2,0022331769
Age, mean (SD)68.22 (12.18)67.62 (11.28)68.29 (12.29)0.2224
Female888 (44.36)111 (47.64)777 (43.92)0.2831
White1,365 (68.18)152 (65.24)1,213 (68.57)0.3259
African American144 (7.19)22 (9.44)122 (6.90)
Other/unknown race493 (24.63)59 (25.32)434 (24.53)
Hispanic176 (8.79)20 (8.58)156 (8.82)0.7296
Non-Hispanic1,460 (72.93)166 (71.24)1,294 (73.15)
Unknown366 (18.28)47 (20.17)319 (18.03)
Follow-up time in years, mean (SD)1.95 (1.05)1.95 (1.09)1.95 (1.04)0.9501
Loss to follow-up
    death103 (5.14)9 (3.86)94 (5.31)0.3459
    dialysis197 (9.84)13 (5.58)184 (10.40)0.0202
    health plan disenrollment313 (15.63)53 (22.75)260 (14.70)0.0015
MDT visitb
    any visit345 (17.23)219 (93.99)126 (7.12)<0.0001
    annualized visit rate, mean (SD)1.91 (1.78)1.78 (1.89)2.17 (1.54)0.0004
Outside nephrology visit
    any visit1,540 (76.92)1,540 (87.05)
    annualized visit rate, mean (SD)2.20 (2.11)2.20 (2.11)
Primary care visits
    any visit1,939 (96.85)229 (98.28)1,710 (96.66)0.1834
    annualized visit rate, mean (SD)5.69 (6.69)4.29 (36.97)5.88 (6.95)0.0032
Hospitalizations
    any inpatient hospitalization762 (39.56)76 (32.62)716 (40.47)0.0211
    annualized visit rate, mean (SD)0.55 (1.18)0.32 (0.85)0.57 (1.22)<0.0001
Number of chronic conditions,c mean (SD)4.45 (2.73)3.78 (2.19)4.53 (2.78)0.0002
Diagnosis of diabetes878114 (48.93)764 (43.19)0.0970
Baseline A1c value (%), mean (SD)7.7 (1.7)7.9 (1.9)7.7 (1.7)0.4252
Baseline GFR (ml/min per 1.73 m2)40.51 (6.56)40.89 (6.54)40.46 (6.56)0.3232
Baseline at BP goal (%)47.6 (26.3)43.1 (23.5)48.2 (26.6)0.6396
Baseline LDL (mg/dl)95.6 (35.9)91.5 (33.9)96.0 (36.1)0.1604
BMI, mean (SD)29.83 (6.46)31.39 (6.34)29.63 (6.44)<0.0001
  • a P values were obtained from χ2 (categorical), or t test or Mann Whitney U-test (continuous) statistics.

  • b Approximately 7% of the usual care group attended one or more MDT group visits.

  • c Based on the Quan adaptation of the Elixhauser morbidity index.(28)