Table 3.

Repolarization‐Related ECG Variables by Hormone Use Category, Adjusted for Multiple Covariates

ECG Interval	No MHT	Past MHT	EST	COMB
QRS (ms)	85.5 ± 0.1	85.6 ± 0.1	86.0 ± 0.1†	85.2 ± 0.1†,‡,§
QT (ms)	406.8 ± 0.3	407.4 ± 0.5	410.3 ± 0.3†	406.3 ± 0.3
QTC (ms)	423.1 ± 0.2	423.9 ± 0.3	425.6 ± 0.2†	424.0 ± 0.2
QTLC	415.8 ± 0.2	416.3 ± 0.3	417.9 ± 0.2†	415.0 ± 0.2
JT (ms)	321.3 ± 0.3	321.8 ± 0.5	324.3 ± 0.3†	321.1 ± 0.3

Covariates used were age, systolic and diastolic blood pressure, and body mass index. COMB = combine estrogen and progesterone use; EST = estrogen use alone; MHT = menopause hormone therapy.

^† P < 0.05 versus no MHT, ^‡ P < 0.05 versus EST, § P < 0.05 versus Past MHT.