3 Anthropometric, cardiac frequency(fc) and function, and polysomnographic data#
| Previous | Present | p-value¶ | |
| Anthropometric data | |||
| Age yrs | 69±9 | 71±9 | ns |
| Males/females n | 11/4 | 11/4 | ns |
| BMI kg·m−2 | 26.5±1.4 | 27.7±2.9 | ns |
| Cardiac frequency and function | |||
| LVEF % | 54±11 | 64±13 | 0.04 |
| fc beats·min−1 | 57±5 | 59±7 | ns |
| Between-phase+ Δfc beats·min−1 | 18±4 | 11±11 | <0.05 |
| Polysomnographic data | |||
| OAI events·h−1 | 7±4 | 4±8 | 0.0005 |
| HI events·h−1 | 9±3 | 36±23 | 0.0003 |
| CAI events·h−1 | 12±14 | 2±2 | 0.0004 |
| Total AHI events·h−1 | 27±16 | 46±29 | 0.04 |
| Between-phase+ ΔAHI % nonpacing | −61 | 16 | NA |
Data are presented as mean±sd, unless otherwise stated. BMI: body mass index; LVEF: left ventricular ejection fraction; Δ: difference; OAI: obstructive apnoea index; HI: hypopnoea index; CAI: central apnoea index; AHI: apnoea–hypopnoea index; ns: nonsignificant; NA: not available. #: comparison between a previous study by Garrigue et al. 1 and the present study; ¶: paired t-test or Mann-Whitney U-test; +: pacing and nonpacing.