Skip to main content

Table 3 Arrhythmia analysis from 24-hour Holter electrocardiograms.

From: Beneficial cardiovascular effects of reducing exposure to particulate air pollution with a simple facemask

  Without Mask With Mask
Pause 0 0
Dropped beat 0 0
Ventricular tachycardia 0 0
Salvo 0 0
Triplet 0 0
Couplet 0 0
Bradycardia (=50 bpm) 71 227
Supraventricular tachycardia 0 0
Bigeminy 57 157
Trigeminy 4 7
"R on T" 0 0
Premature aberrant 3246 4698
Isolated aberrant 18 3
Premature normal 11 17
Maximum heart rate 134
(126 – 143)
128
(120 – 137)
Minimum heart rate 51
(48 – 54)
49
(46 – 53)
  1. Data shown are total number of events recorded in each condition over all subjects.
  2. P > 0.05 for all (Wilcoxon matched pairs test). Maximum and minimum heart rates shown as mean (95% confidence intervals), P > 0.05 for both, Student's paired t-test.