Table 3.
Neurovegetative Data Categorized According to SDB Pattern and Presence/Absence of Arterial Hypertension at Baseline
| No-SDB | d-OSA | d-CSA | MP | p | ||
|---|---|---|---|---|---|---|
| Hypertension | ||||||
| BRS | No | 10.8±7.8 | 8.4±3.7 | 25.1±19.9° | 8.1±3 | <0.01 |
| Yes | 8.3±6.1 | 5.8±3.9 | 9.4±6.9° | 5.9±3.5 | ||
| ANSI | No | 36.9±30.9 | 48.4±33.1 | 87.8±2.8 | 47.4±41.7 | n.s. |
| Yes | 41.2±25 | 41.9±31.7 | 53.8±37.5 | 39.4±29.6 | ||
| Alpha M | No | 15±7.1 | 10.3±4.4 | 32.8±19.2* | 7.7±2.8 | <0.01 |
| Yes | 8±5.2 | 10.8±6.9 | 9.4±5.3* | 8.7±3 | ||
| HR (beats/min) | No | 73±5.4 | 65.7±11 | 50±5.7 | 68.9±15.5 | n.s. |
| Yes | 65.6±12.1 | 66.6±11.4 | 62.8±13.6 | 66.3±8.9 | ||
| RR | No | 825±58 | 937.5±162 | 1208.4±137.3 | 905.6±198.2 | n.s. |
| Yes | 943.5±180.5 | 926±161 | 992.5±189 | 919.5±127.6 | ||
| RR LF/HF | No | 2.4±3.3 | 2.1±3 | 0.86±0.1 | 2.6±3.4 | n.s. |
| Yes | 2.1±2.8 | 3.9±4.6 | 3.4±7.5 | 4.7±3.9 | ||
Notes: Data are presented as mean ± SD. ° and * Intragroup post-hoc analysis.
Abbreviations: SDB, sleep-disordered breathing; BRS, time domain baroreflex sensitivity; ANSI, Autonomic Nervous System Index; Alpha M, frequency domain baroreflex gain; HR, heart rate; RR, RR interval; LF/HF, ratio of low frequency/high frequency; RR, R-R interval variability spectral power; No-SDB, no sleep-disordered breathing; d-OSA, dominant obstructive sleep apnea pattern; d-CSA, dominant central sleep apnea pattern; MP, mixed pattern.