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Table 1 Characteristics of the study population (mean ± SD) [range]

From: The prognostic value of blood pH and lactate and metformin concentrations in severe metformin-associated lactic acidosis

  All patients (n = 56) Survivors (n = 30) Non-survivors (n = 26) p-value for the survivor/non-survivor comparison
Age 62.9 ± 12.1 [39–83] 61.7 ± 11.1 [40–81] 64.2 ± 13.1 [39–83] 0.44
Creatinine, μmol/L 587 ± 270 [57–1000] 672 ± 265 [133–1000] 508 ± 310 [57–929] 0.09
pH 6.75 ± 0.17 [6.28-6.99] 6.73 ± 0.17 [6.30-6.98] 6.79 ± 0.17 [6.28-6.99] 0.16
Lactate, mmol/L 23.07 ± 6.94 [10.9-55.7] 22.24 ± 4.72 [14–35.3] 24.0 ± 8.9 [10.9-55.7] 0.26
Plasma metformin level, mg/L 48.3 ± 39.6 [0.8-188] 39.66 ± 34.22 [0.8-160] 63.3 ± 47.4 [1.01-188] 0.04