Table 4.
HRV indicators of groups divided by number of coronary artery diseased (unit=ms)
| Variable | Controls (n=86) | One-vessel diseased (n=98) | Two-vessel diseased (n=74) | Three-vessel diseased (n=64) | P |
|---|---|---|---|---|---|
| SDNN | 121.9±17.6 | 112.6±22.2a | 101.1±25.0ab | 89.1±20.7abc | 0.001 |
| SDANN | 104.8±24.3 | 97.8±31.4 | 95.6±26.2 | 82.1±28.0abc | 0.001 |
| SDNNind | 50.5±24.4 | 45.3±22.6 | 43.8±24.2 | 40.4±22.0 | 0.063 |
| RMSSD | 35.9±17.3 | 31.4±21.0 | 32.5±26.1 | 29.7±19.3 | 0.306 |
| PNN 50 (%) | 8.1±3.5 | 8.2±4.1 | 7.3±4.2 | 6.8±4.0 | 0.091 |
a
was significant compared with control group
b
was significant compared with one-vessel diseased
c
was significant compared with two-vessel diseased
two - double; one-single; Three - triangle; others abbreviations as in Table 2