Table 3. Correlations (r) between ΔTAmp, ΔTpTe, ΔQTcF and results of principal component (PC) analysis in discovery (n = 489, in bold) and replication (n = 495, highlighted in italic) cohort.

Correlation (r)	ΔTAmp	ΔTpTe	ΔQTcF	PC1	PC2	PC3
ΔTAmp	1	0.59	0.40	-0.83	0.36	-0.43
ΔTpTe	0.58	1	0.45	-0.85	0.23	0.47
ΔQTcF	0.47	0.46	1	-0.73	-0.68	-0.06
PC1	-0.84	-0.84	-0.78	1	0	0
PC2	0.28	0.3	-0.63	0	1	0
PC3	-0.46	0.45	0.01	0	0	1