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. Author manuscript; available in PMC: 2017 Oct 24.
Published in final edited form as: Hypertension. 2017 Oct 3;70(5):930–937. doi: 10.1161/HYPERTENSIONAHA.117.10003

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.