Table 1 Descriptive features of the dataset. For all the numerical variables median and (1st, 3rd quartile) are reported. We compared “Censored” and “Event” populations with Mann–Whitney and Chi-squared tests, respectively for continuous variables and gender. All comparisons were significant (p-value < 0.001)
Censored | Event | Overall | |
|---|---|---|---|
Age (years) | 65 (52, 75) | 74 (67, 80) | 67 (54, 76) |
Gender (Male, %) | 49 | 58 | 50 |
P axis (degrees) | 58 (43, 69) | 60 (42, 73) | 58 (43, 69) |
P onset (msec) | 290 (269, 307) | 274 (246, 295) | 288 (266, 306) |
P offset (msec) | 407 (388, 422) | 391 (361, 413) | 406 (385, 422) |
PR interval (msec) | 163 (148, 182) | 176 (157, 199) | 164 (149, 184) |
QRS axis (degrees) | 37 (1, 64) | 16 (-22, 53) | 35 (-2, 63) |
QRS onset (msec) | 453 (449, 458) | 451 (445, 457) | 453 (449, 458) |
QRS offset (msec) | 550 (543, 558) | 551 (545, 563) | 550 (543, 558) |
QT interval corrected (msec) | 408 (395, 424) | 420 (404, 439) | 409 (396, 426) |
T axis (degrees) | 54 (36, 68) | 59 (34, 78) | 55 (36, 69) |
T offset (msec) | 841 (820, 863) | 853 (829, 878) | 842 (821, 865) |
Heart rate (beats/min) | 71 (62, 80) | 69 (61, 78) | 70 (62, 80) |