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. 2011 Sep;22(9):1758–1768. doi: 10.1681/ASN.2011010006

Table 4.

Renal function by treatment arm

I. Geometric Mean Serum Cr Level */ SE (in mg/dl)1
Post-Tx Month N TAC/SRL N TAC/MMF N CSA/SRL P-Value
    12 48 1.40 */ 1.04 43 1.25 */ 1.05 45 1.48 */ 1.06 0.08
    24 46 1.54 */ 1.07 45 1.31 */ 1.06 44 1.54 */ 1.05 0.07
    36 41 1.39 */ 1.05 44 1.36 */ 1.06 44 1.60 */ 1.06 0.08
    60 30 1.47 */ 1.09 26 1.33 */ 1.07 33 1.62 */ 1.07 0.19
    84 27 1.38 */ 1.06 18 1.15 */ 1.08 27 1.44 */ 1.08 0.10
II. Mean eGFR ± SE (in ml/min per 1.73 m2) Using the Abbreviated MDRD Formula
Post-Tx Month N TAC/SRL N TAC/MMF N CSA/SRL P-Value
    12 48 58.3 ± 2.5 43 65.5 ± 3.7 45 55.1 ± 2.8 0.06
    24 46 53.9 ± 2.7 45 62.5 ± 3.2 44 51.4 ± 2.5 0.02
    36 41 58.6 ± 3.5 44 60.2 ± 3.2 44 50.4 ± 2.9 0.06
    60 30 57.2 ± 4.4 26 59.1 ± 4.1 33 48.8 ± 3.0 0.12
    84 27 59.5 ± 4.2 18 67.4 ± 6.2 27 53.8 ± 4.2 0.16
III. Mean eGFR ± SE, stratifying by donor age
Donor Age <37.5 yr
    Post-Tx Month N TAC/SRL N TAC/MMF N CSA/SRL
        12 28 62.8 ± 3.2 19 76.7 ± 6.2 23 63.0 ± 4.1
        24 27 57.2 ± 3.8 19 70.6 ± 5.7 22 60.4 ± 3.5
        36 25 64.1 ± 4.7 18 69.8 ± 4.8 22 59.7 ± 4.0
        60 20 63.8 ± 5.8 11 66.9 ± 7.3 17 53.1 ± 4.7
        84 19 65.2 ± 5.0 10 72.8 ± 10.0 15 60.5 ± 6.3
Donor Age ≥37.5 yr
    Post-Tx Month N TAC/SRL N TAC/MMF N CSA/SRL
        12 20 51.9 ± 3.7 24 56.6 ± 3.7 22 47.0 ± 3.1
        24 19 49.1 ± 3.6 26 56.6 ± 3.3 22 42.4 ± 2.3
        36 16 50.0 ± 4.2 26 53.5 ± 3.8 22 41.0 ± 3.1
        60 10 43.9 ± 3.5 15 53.4 ± 4.4 16 44.2 ± 3.5
        84 8 45.8 ± 5.5 8 60.7 ± 6.5 12 45.4 ± 4.1

Cr, creatinine; eGFR, estimated glomerular filtration rate; SE, standard error; TAC, Tacrolimus; MMF, mycophenolate mofetil; CSA, cyclosporine microemulsion; SRL, Sirolimus.

1Due to the skewness of each of the serum creatinine distributions, the geometric means rather than arithmetic means were reported. Proper assessment of variability requires that the geometric mean be multiplied and divided by its standard error.