TABLE 1.

Descriptive analyses of study cohort

Age, mean ± S.D.	52 ± 13 years
Sex	63% male
BMI, mean ± S.D.	29.9 ± 5 kg/m2
Weight, mean ± S.D.	83.6 ± 19.3 kg
Tribal affiliation
Navajo	58%
Hopi	21%
Other	21%
Duration posttransplant, mean ± S.D.	30 ± 23 months
Twice daily dose, mean ± S.D.a	1.27 ± 0.644 mg (0.016 ± 0.010 mg/kg)
Presence of diabetes mellitus before transplant	67%
Presence of acute rejection	25%
Presence of new onset diabetes mellitus	13%

^a Excluding one patient who had been on therapy less than 4 months, such that, per hospital protocol, the target trough level was higher for this patient.