Table 6 Mean Values for ECG Parameters for Caucasians and Non-Caucasians
From: Baseline values from the electrocardiograms of children and adolescents with ADHD
ECG Variable | Caucasian (n = 4627) Mean (SD) | Non-Caucasian (n = 1303) Mean (SD) | P value |
|---|---|---|---|
Heart Rate (bpm) | 78.3 (12.5) | 76.8 (11.7) | *** |
RR Interval (ms) | 785.2 (127.8) | 799.6 (123.4) | *** |
PR Interval (ms) | 135.3 (18.2) | 139.7 (18.8) | *** |
QRS Interval (ms) | 83.5 (9.4) | 80.8 (9.0) | *** |
QT Interval (ms) | 366.8 (28.2) | 367.2 (27.0) | |
QTc | |||
Bazett (ms) | 415.5 (20.8) | 412.2 (20.8) | *** |
Data-derived (ms) | 403.3 (18.7) | 400.9 (18.7) | *** |
Fridericia (ms) | 398.5 (18.7) | 396.6 (18.6) | *** |