Table 4.
Effect of a Single Cigarette Smoking on Heart Rate Variability, Plasma N‐Terminal pro‐B‐type Natriuretic Peptide, Ventricular Premature Contractions, and Blood Pressure in Healthy Subjects
| Variables | B | SE | Beta | t | P |
|---|---|---|---|---|---|
| Systolic BP | 0.250 | 0.098 | 0.285 | 2.541 | 0.01 |
| Diastolic BP | 0.211 | 0.082 | 0.288 | 2.567 | 0.01 |
| VPCs | 11.16 | 5.215 | 0.243 | 2.141 | 0.03 |
| NT‐pro‐BNP | 1.298 | 0.214 | 0.579 | 6.072 | <0.0001 |
| SDNN | −2.154 | 0.456 | −0.484 | −4.726 | <0.0001 |
| LF day | 43.4 | 6.65 | 0.607 | 6.525 | <0.0001 |
| LF night | 35.7 | 5.47 | 0.607 | 6.519 | <0.0001 |
| LF 24 hours | 39.8 | 6.043 | 0.611 | 6.589 | <0.0001 |
| LF/HF day | 0.182 | 0.045 | 0.429 | 4.056 | <0.0001 |
| LF/HF night | 0.099 | 0.023 | 0.450 | 4.307 | <0.0001 |
| LF/HF 24 hours | 0.126 | 0.028 | 0.465 | 4.486 | <0.0001 |
SDNN = standard deviation of all NN intervals; LF = low frequency; HF = high frequency; SE = Standard error; BP = Blood pressure; VPCs = ventricular premature contractions; NT‐pro‐BNP; = N‐Terminal pro‐B‐type natriuretic peptide (pg/mL).