Table 2.
Comparison of HRV parameters between groups
| HS | CA | UA | P values | |||
|---|---|---|---|---|---|---|
| N = 40 | N = 37 | N = 43 | Non-Adjusted | Adjusted for MHR | Adjusted for MHR and AAT | |
| Mean (SD) | Mean (SD) | Mean (SD) | ||||
| LnTP (ms2/Hz) | 6.68 (1.31) | 7.40 (1.27) | 6.64 (1.49) | HS vs. CA = 0.023* | HS vs. CA = 0.037* | HS vs. CA = 0.673 |
| HS vs. UA = 0.885 | HS vs. UA = 0.857 | HS vs. UA = 0.314 | ||||
| CA vs.UA = 0.015* | CA vs.UA = 0.019* | CA vs.UA = 0.020* | ||||
| LnVLF (ms2/Hz) | 5.47 (1.12) | 5.87 (1.02) | 5.36 (1.47) | HS vs. CA = 0.157 | HS vs. CA = 0.163 | HS vs. CA = 0.821 |
| HS vs. UA = 0.673 | HS vs. UA = 0.950 | HS vs. UA = 0.481 | ||||
| CA vs.UA = 0.065 | CA vs.UA = 0.076 | CA vs.UA = 0.080 | ||||
| LnLF (ms2/Hz) | 5.50 (1.43) | 6.23 (1.30) | 5.53 (1.47) | HS vs. CA = 0.026* | HS vs. CA = 0.042* | HS vs. CA = 0.658 |
| HS vs. UA = 0.911 | HS vs. UA = 0.668 | HS vs. UA = 0.141 | ||||
| CA vs.UA = 0.030* | CA vs.UA = 0.033 | CA vs.UA = 0.031* | ||||
| LnHF (ms2/Hz) | 5.32 (1.76) | 6.41 (1.65) | 5.31 (1.84) | HS vs. CA = 0.008* | HS vs. CA = 0.016* | HS vs. CA = 0.490 |
| HS vs. UA = 0.979 | HS vs. UA = 0.761 | HS vs. UA = 0.346 | ||||
| CA vs.UA = 0.006* | CA vs.UA = 0.007* | CA vs.UA = 0.008* | ||||
| LF Norm (nu) | 54.1 (17.3) | 45.6 (16.4) | 54.2 (17.6) | HS vs. CA =0.021* | HS vs. CA =0.053 | HS vs. CA =0.406 |
| HS vs. UA =0.748 | HS vs. UA =0.896 | HS vs. UA =0.716 | ||||
| CA vs.UA =0.041* | CA vs.UA =0.025 | CA vs.UA =0.030* | ||||
| HF Norm (nu) | 45.9 (17.3) | 54.4 (16.4) | 45.8 (17.6) | HS vs. CA =0.031* | HS vs. CA =0.053 | HS vs. CA =0.406 |
| HS vs. UA =0.983 | HS vs. UA =0.896 | HS vs. UA =0.716 | ||||
| CA vs.UA =0.026* | CA vs.UA =0.025* | CA vs.UA =0.030* | ||||
| LnLF/HF | 0.19 (0.76) | −0.19 (0.75) | 0.22 (0.86) | HS vs. CA = 0.040* | HS vs. CA = 0.054 | HS vs. CA = 0.438 |
| HS vs. UA = 0.838 | HS vs. UA = 0.983 | HS vs. UA = 0.558 | ||||
| CA vs.UA = 0.022* | CA vs.UA = 0.025* | CA vs.UA = 0.029* | ||||
AAT Anti-asthma treatments, CA Controlled asthmatic, HF High frequency, HF Norm normalized high frequency, HRV Heart rate variability, HS Healthy subjects, LF Low frequency, LF Norm normalized low frequency, Ln Natural logarithm, MHR Mean heart rate, SD Standard deviation, TP Total power, UA Uncontrolled asthma, VLF Very low frequency, * Statistically significant.