Fig. 4Figure 4
Genetic associations of sex hormones and ECG indices. Based on inverse-variance weighted estimates or Wald ratio estimates. Black means there was no results. ECG: electrocardiography, TT: total testosterone, BT: bioavailable testosterone, SHBG: sex hormone binding globulin, PTFV1: P wave terminal force in lead I, spQRSTa: spatial QRS-T angles, fQRSTa: frontal QRS-T angles, HRVSDNN: the standard deviation of normal-to-normal heart beat intervals, HRVRMSSD: the root mean square of the successive differences of heart beat intervals, HRVpvRSA/HRVHF: the peak-valley respiratory sinus arrhythmia or high frequency power. “***” represented p_ value < 0.003, and “**” represented p- value less than 0.05 but greater than 0.003