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. 2015 Oct 22;3:e1354. doi: 10.7717/peerj.1354

Table 2. Correlation between electrocardiographic parameters and clinical variables in the current cohort.

Coefficient (p value) PR intervals QRS duration QTc interval
Albumin (g/dL) 0.05 (0.76) 0.26 (0.11) 0.13 (0.41)
Creatinine (mg/dL) −0.02 (0.89) 0.2 (0.22) 0.02 (0.9)
Hemoglobin (mg/dL) −0.09 (0.62) 0.28 (0.07) 0.15 (0.34)
Potassium (meq/L) 0.27 (0.11) −0.07 (0.66) −0.11 (0.51)
Calcium (mg/dL) −0.07 (0.69) 0.23 (0.16) 0.05 (0.77)
CRP (mg/dL) −0.25 (0.17) −0.11 (0.54) −0.17 (0.34)
Strawbridge questionnaire score 0.17 (0.33) −0.05 (0.75) −0.03 (0.84)
Edmonton Frailty Scale score 0.13 (0.46) −0.3 (0.049) −0.15 (0.36)
Simple FRAIL scale score 0.16 (0.34) −0.28 (0.08) −0.12 (0.47)
Groningen Frailty Indicator score 0.06 (0.73) −0.11 (0.52) −0.09 (0.59)
G8 questionnaire score 0.09 (0.58) 0.13 (0.43) 0.05 (0.75)
Tilburg Frailty Indicator score −0.02 (0.89) −0.07 (0.66) −0.1 (0.53)

Notes.

CRP
C-reative protein