Table 3 The difference in RT index based on different degrees of coronary stenoses
From: Early detection of myocardial ischemia in resting ECG: analysis by HHT
Variable | Exercise ECG | Number | Male | Female | Age | RT index (%) | Std. deviation (%) | Std. error (%) | Upper bound (%) | Lower bound (%) | p-value |
|---|---|---|---|---|---|---|---|---|---|---|---|
Threshold | Negative | 47 | 34 | 13 | 50.68 | 22.30 | 4.34 | 0.63 | 23.57 | 21.02 | |
Model 1 | Positive | 26 | 16 | 10 | 49.38 | 27.96 | 6.14 | 1.20 | 30.44 | 25.48 | < 0.001 |
Coronary stenoses | |||||||||||
Model 2 | < 50% | 18 | 11 | 7 | 47.6 | 26.72 | 5.27 | 1.24 | 29.34 | 24.10 | 0.008 |
≥ 50% | 8 | 5 | 3 | 53.38 | 30.75 | 7.36 | 2.60 | 36.91 | 24.59 | < 0.001 | |
Model 3 | Normal | 4 | 3 | 1 | 42.75 | 25.25 | 5.91 | 2.95 | 34.65 | 15.85 | 0.73 |
< 50% | 14 | 8 | 6 | 49 | 27.14 | 5.23 | 1.40 | 30.16 | 24.12 | 0.022 | |
≥ 50% | 8 | 5 | 3 | 53.38 | 30.75 | 7.36 | 2.60 | 36.91 | 24.59 | < 0.001 |