Association between ventricular repolarization variables and cardiac diastolic function: A cross-sectional study of a healthy Chinese population

Table 2 Correlation analysis between electrocardiography repolarization variables and other variables

	QT (ms)	QTc (ms)	Tpe (ms)	Tpec (ms)	Tpe/QT	Tpe/QTc
Age (yr)	0.223b	0.281b	0.167b	0.169b	0.109a	0.090
BMI (kg/m2)	0.073	0.109a	0.119a	0.124a	0.120a	0.100a
SBP (mmHg)	0.082	0.167b	0.059	0.089	0.049	0.004
DBP (mmHg)	-0.031	0.029	-0.034	-0.008	-0.005	-0.036
TG (mmol/L)	-0.02	0.028	0.058	0.073	0.086	0.058
TC (mmol/L)	0.009	0.115a	0.054	0.094	0.071	0.020
HDL-C (mmol/L)	-0.061	-0.067	-0.132b	-0.122a	-0.140b	-0.130b
LDL-C (mmol/L)	-0.046	0.155b	0.088	0.127a	0.098a	0.042
FBG ( mmol/L )	-0/089	0.080	0.015	0.074	0.081	0.001
SCr (μmol/L)	-0/013	-0.055	0.089	0.068	0.123a	0.146b
E (cm/s)	0.051	-0.093	-0.072	-0.121a	-0.138b	-0.060
A (cm/s)	0.152b	0.324b	0.189b	0.237b	0.157b	0.079
E/A	-0.070	-0.288b	-0.155b	-0.223b	-0.175b	-0.067
DT (ms)	0.244b	-0.028	0.073	-0.047	-0.039	0.102a
LAV (mL)	0.312b	0.209b	0.157b	0.099a	0.038	0.100a
LAVI (mL/m2)	0.354	0.255b	0.148b	0.091	0.002	0.062

P-values are from analysis of variance:

^aSignificant difference (P < 0.05);

^bSignificant difference (P < 0.01). BMI: Body mass index; SBP: Systolic blood pressure; DBP: Diastolic blood pressure; TG: Triglyceride; TC: Total cholesterol; HDL-C-C: High-density lipoprotein cholesterol; LDL-C: Low-density lipoprotein cholesterol; FBG: Fasting blood glucose; SCr: Serum creatinine; E: Early diastolic inflow velocity; A: Late diastolic inflow velocity; DT: E-wave deceleration time; LAV: Left atrial volume; LAVI: Left atrial maximum volume index.