Supplemental Table 2Correlation Coefficients and P Values between Each Variable and Patient Outcomes in the Learning Data Set

Variable / Good (CPC ≤ 2;n = 34) / Poor (CPC ≥ 3;n = 43) / r / pvalue
Age / 62.3 ± 13.7 / 60.1 ± 17.2 / 0.07 / 0.550
Witness, n (%) / 22 (91.7) / 21 (65.6)
Time until ROSC, min / 20.1 ± 17.6 / 28.9 ± 14.8
Witness/ Time until ROSC / - 0.48 / < 0.01
Bystander, n (%) / 19 (55.9) / 24 (55.8) / 0.00 / 0.995
Initial rhythm, shockable, n (%)a / 24 (72.7) / 14 (32.6) / 0.40 / < 0.01
GCS, M≥2, n (%)b, h / 29 (87.9) / 13 (31.7) / 0.56 / < 0.01
Mydriasisc, h / 7 (21.2) / 19 (45.2) / - 0.25 / 0.030
pHd, i / 7.23 ± 0.13 / 6.98 ± 0.21 / 0.58 / < 0.01
Lactate (mmol/dL)e, i / 8.0 ± 4.0 / 11.0 ± 4.2 / - 0.35 / < 0.01
WBC (103/L)i / 10.3 ± 3.4 / 11.4 ± 4.8 / - 0.13 / 0.263
CRP (mg/dL)f, i / 0.20 ± 0.30 / 1.83 ± 4.24 / - 0.25 / 0.031
Glucose (mg/dL)i / 253 ± 89 / 266 ± 119 / - 0.06 / 0.601
Creatinine (mg/dL)i / 2.1 ± 3.2 / 2.3 ± 3.3 / -0.03 / 0.769
Albumin (g/dL)i / 3.9 ± 0.4 / 3.2 ± 0.7 / 0.48 / < 0.01
Hemoglobin (g/dL)i / 14.1 ± 1.8 / 12.3 ± 2.5 / 0.37 / < 0.01
GWRg, j / 1.26 ± 0.05 / 1.21 ± 0.08 / 0.33 / < 0.01

Data are presented as mean ± standard deviation or as absolute frequencies with percentages. r= correlation ratio.

ROSCreturn of spontaneous circulation, GCS Glasgow Coma Scale, CRP C-reactive protein, GWR gray matter attenuation to white matter attenuation ratio

Missing data; an = 1 and 0; b n = 1 and 2; c n = 1 and 1; d n = 1 and 3; en = 1 and 6; fn = 1 and 2; g n = 3 and 5.

hThese data was obtained just after return of spontaneous circulation.

iThese data was obtained about 15 minutes before and after return of spontaneous circulation.

jThe CT was performed within 6h after the patient had the return of his or her spontaneous circulation.