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. 2022 Jul 14;66(8):e00438-22. doi: 10.1128/aac.00438-22

TABLE 2.

Summary of the meropenem population pharmacokinetic parameter estimatesa

Parameters Median 95% credibility interval Mean SD Shrinkage (%)
ke, hr−1 1.26 1.07, 1.56 1.33 0.36 0.001
Vplasma, L 5.38 3.98, 7.42 6.14 2.87 0.003
VCSF, L 0.55 0.08, 0.98 0.55 0.42 0.001
Vbrain, L 0.28 0.11, 0.71 0.57 0.70 0.000
k12, hr−1 2.56 0.95, 3.81 2.43 1.56 0.000
k21, hr−1 1.39 1.11, 1.86 1.44 0.46 0.009
k13, hr−1 0.001 4 × 10−4, 0.01 0.003 0.004 0.007
k31, hr−1 0.03 4 × 10−4, 0.08 0.04 0.03 0.001
k14, hr−1 0.02 0.01, 0.03 0.02 0.01 0.004
k41, hr−1 0.52 0.34, 1.20 0.75 0.55 0.001
k34, hr−1 0.67 0.31, 0.81 0.57 0.31 0.001
k43, hr−1 0.04 0, 0.11 0.08 0.13 0.000
a

CSF, cerebrospinal fluid; ke, elimination rate constant; kxy, rate of transfer from the compartment x to y, where compartment 1 is the plasma central, 2 is the plasma peripheral, 3 is the CSF, and 4 is the brain compartment; V, central volume of distribution.