Table 3: Comparison of electrocardiographic characteristics of the elderly and controls.
Variables |
Values (Mean SD) |
T- Test |
P- Value |
|
Elderly |
Young |
|||
Heart rate (beat/min) |
67.76 (13.74) |
68.98 (4.24) |
6.327 |
< 0.001* |
P-wave duration (msec) |
117.42 (14.48) |
90.30 (14.84) |
10.463 |
< 0.0001* |
P-wave dispersion (msec) |
58.18 (22.94) |
34.7 (17.41) |
6.488 |
< 0.0001* |
PR-interval (msec) |
175.53 (26.70) |
161.3 (27.13) |
2.990 |
< 0.0001* |
QRS duration (msec) |
84.08 (15.19) |
81.5 (15.82) |
0.941 |
0.3484 |
QRS dispersion (msec) |
45.45 (18.02) |
33.3 (14.57) |
4.325 |
< 0.0001* |
QTc-interval (msec) |
411.91 (31.13) |
393.5 (21.46) |
3.872 |
< 0.0002* |
QTc-dispersion |
66.64 (11.61) |
47.8 (21.23) |
6.280 |
< 0.0001* |
*: Statistically significant