Table 2. Differences in haemodynamic responses to placebo vs. slow sodium by sex.
Variable | Males (n=24) | Females (n=24) | ||||
---|---|---|---|---|---|---|
| ||||||
Placebo | Slow sodium | P-value | Placebo | Slow sodium | P-value | |
Body weight, kg | 73.6±2.5 | 73.6±2.5 | 0.93 | 63.5±1.6 | 64.2±1.6 | 0.01 |
Office measurements | ||||||
Seated SBP, mmHg | 120±2 | 119±2 | 0.85 | 114±2 | 114±2 | 0.72 |
Seated DBP, mmHg | 71±2 | 71±2 | 0.98 | 73±2 | 73±1 | 0.75 |
Seated MAP, mmHg | 87±1 | 87±2 | 0.65 | 87±2 | 88±1 | 0.43 |
Seated HR, bpm | 72±2 | 68±2 | 0.12 | 74±2 | 72±2 | 0.30 |
Supine SBP, mmHg | 116±2 | 116±4 | 0.91 | 111±2 | 113±2 | 0.27 |
Supine DBP, mmHg | 65±2 | 65±2 | 0.72 | 68±2 | 69±1 | 0.55 |
Supine MAP, mmHg | 83±2 | 82±1 | 0.62 | 83±2 | 84±2 | 0.33 |
Supine HR, bpm | 60±2 | 58±2 | 0.15 | 64±2 | 63±2 | 0.23 |
Ambulatory BP, mmHg | ||||||
24-hr SBP | 121±1 | 122±2 | 0.57 | 114±1 | 118±1 | < 0.001 |
24-hr DBP | 73±2 | 73±2 | 0.46 | 71±1 | 73±1 | 0.05 |
24-hr MAP | 96±2 | 96±2 | 0.89 | 91±1 | 93 ± 1 | < 0.001 |
Day SBP | 124±1 | 125±2 | 0.32 | 118±1 | 121 ± 2 | 0.02 |
Day DBP | 76±2 | 76±2 | 0.34 | 75±2 | 76 ± 2 | 0.33 |
Day MAP | 98±2 | 98±2 | 0.93 | 95±1 | 97 ± 2 | 0.05 |
Night SBP | 114±2 | 115±2 | 0.52 | 105±1 | 110 ± 1 | < 0.001 |
Night DBP | 65±2 | 66±2 | 0.65 | 63±1 | 65 ± 1 | 0.01 |
Night MAP | 88±2 | 89±2 | 0.80 | 82±1 | 86 ± 1 | < 0.001 |
Central haemodynamics | ||||||
CSBP, mmHg | 99±1 | 99±2 | 0.99 | 95±2 | 98±2 | 0.11 |
CDBP, mmHg | 67±2 | 66±2 | 0.21 | 69±2 | 70±1 | 0.22 |
CMAP, mmHg | 82±2 | 80±2 | 0.12 | 83±2 | 85±2 | 0.22 |
Augmentation index, % | 4.5±2 | 4.5±2 | 0.98 | 13.7±3 | 14.5±3 | 0.58 |
PWV ms-1 | 5.2(4.7 – 5.6) | 5.3(4.9 – 6.0) | 0.10 | 5.0(4.7 – 5.5) | 5.2(4.8 – 5.4) | 0.93 |
Cardiac output, litres/min | 6.6±0.3 | 7.0±0.4 | 0.08 | 5.6±0.3 | 5.8±0.3 | 0.10 |
Stroke volume, ml | 107.9±5.2 | 116.8±6.5 | 0.09 | 86.0±4.0 | 88.9±3.6 | 0.29 |
PVR, dynes s-1 cm-5 | 1048±51 | 1045±64 | 0.57 | 1251±72 | 1212±66 | 0.46 |
Normally distributed data presented as mean±SEM. Non-normally distributed data are presented as median and IQR.