Variables | Group A | Group B | P value |
---|
(n = 30) | (n = 30) |
---|
MAX QTC (ms) | 485 (320—692)d | 510 (473—812)d | 0,063b |
SDNN (ms) | 115 (51—169)d | 148,3 (± 26,27)c | < 0,001b |
SDNNI (unitless) | 48,7 (± 9,75)c | 68,9 (± 13,36)c | < 0,001a |
SDANNI | 104 (43—149)d | 128,2 (93—193)d | < 0,001b |
rMSSD (ms) | 26 (14—60)d | 43,1 (± 12,58)c | < 0,001b |
pNN50 (%) | 6 (0—32)d | 18,1 (± 9,43)c | < 0,001b |
TPow (Hz) | 2418,8 (652,7—5713)d | 4771,4 (1626—8538,5)d | < 0,001b |
VLF power (Hz) | 1529,9 (370,7—3780)d | 2999,2 (858—5569,8)d | < 0,001b |
LF power (Hz) | 531,2 (190,4—1054)d | 1095,31 (± 401,3)c | < 0,001b |
HF power (Hz) | 348,6 (81,8—931,3)d | 632,1 (121,6—1487,9)d | 0,001b |
LF/HF (unitless) | 2,1 (0,8—7,7)d | 2,5 (0,5—9,9)d | 0,080b |
MHR (bpm) | 92,1 (± 7,79)c | 81,2 (± 6,99)c | < 0,001a |
- Group A: Study group. Group B: Control group
- SDNN The standard deviation of all NN intervals, SDNNI The mean of the standard deviations of all NN intervals for all 5-min segments of the entire recording, SDANNI The standard deviation of the averages of NN intervals in all 5-min segments of the entire recording, rMSDD The square root of the mean of the sum of the squares of differences between adjacent NN intervals, pNN50 The number of pairs of adjacent NN intervals differing by more than 50 ms divided by the total number of all NN intervals, TPow Total power, VLF power The very low-frequency range power, LF power The low-frequency range power, HF power The high-frequency range power, MHR 24-h mean heart rate
- Xa: Student’s T test has been used for parametric tests
- Xb: Mann–Whitney U test has been used for non-parametric tests
- Xc: “mean” and “standard deviation” values have been indicated in parenthesis for parameters that suit normal distribution
- Xd: “median” and “minimum–maximum” values have been indicated in parenthesis for parameters that does not suit normal distribution