Table 2.
Measures of autonomic function.
| Measure | Controls | Newly diagnosed T2D | Established T2D | P value |
|---|---|---|---|---|
| (n = 15) | (n = 15) | (n = 15) | ||
| R-R ratio (deep breathing) | 1.26 ± 0.04 | 1.20 ± 0.03 | 1.17 ± 0.05 | 0.0325# |
| R-R ratio (Valsalva) | 1.58 ± 0.21 | 1.37 ± 0.06 | 1.24 ± 0.05 | 0.0270* |
| R-R ratio (standing) | 1.29 ± 0.04 | 1.26 ± 0.05 | 1.18 ± 0.02 | NS |
| LFa | 1.60 ± 0.43 | 1.90 ± 0.39 | 1.37 ± 0.37 | NS |
| RFa | 1.21 ± 0.27 | 1.89 ± 0.79 | 0.73 ± 0.29 | NS |
| LFa/RFa ratio | 1.53 ± 0.24 | 2.51 ± 0.51 | 2.88 ± 0.56 | NS |
| TSP baseline | 950.88 ± 191.95 | 772.94 ± 290.95 | 416.95 ± 142.61 | 0.0023* |
| sdNN baseline | 47.66 ± 4.87 | 41.04 ± 3.92 | 28.92 ± 4.65 | 0.0008* |
| rmSSD baseline | 30.18 ± 3.76 | 28.77 ± 6.97 | 18.97 ± 3.38 | 0.0356# |
Data are presented as means ± SE. NS: not significant. *Established T2D versus controls/newly diagnosed T2D. #Newly diagnosed/established T2D versus controls. TSP: total spectral power; SDNN: standard deviation of all normal R-R intervals; rmSSD: root mean square of the difference of successive R-R intervals.