Table 1.
Baseline demographics of participants presented as a statistical overview of the various variables and measurements.
| Variable | Baseline demographics of participants | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Distribution | Mean | Median | SD | 95% CI | Gender difference | Signif. | SE | 95% CI | |||
| Age (years) | Non-normal | 53.16 | 51.50 | 13.54 | 48.65 | 57.68 | Not signif. | ||||
| Systolic blood pressure (mmHg) | Non-normal | 138.03 | 137.50 | 19.00 | 131.69 | 144.36 | Not signif. | ||||
| Diastolic blood pressure (mmHg) | Non-normal | 81.73 | 79.50 | 10.93 | 78.09 | 85.37 | Not signif. | ||||
| Pulse (bpm) | Normal | 59.24 | 56.50 | 8.98 | 56.25 | 62.24 | Not signif. | ||||
| Height (cm) | Non-normal | 172.89 | 172.00 | 10.28 | 169.46 | 176.32 | 15.58 | p < 0.01 | 2.21 | 11.09 | 20.07 |
| Weight (kg) | Non-normal | 84.16 | 83.50 | 19.83 | 77.55 | 90.77 | 19.24 | p < 0.01 | 5.78 | 7.50 | 30.97 |
| Body surface area (m2) | Non-normal | 1.97 | 1.98 | 0.27 | 1.88 | 2.06 | 0.33 | p < 0.01 | 0.07 | 0.19 | 0.47 |
| Body mass index (kg/m2) | Non-normal | 27.93 | 27.60 | 5.15 | 26.22 | 29.65 | Not signif. | ||||
| Time to peak (s) | Normal | 18.32 | 18.00 | 2.60 | 17.46 | 19.19 | Not signif. | ||||
| Attenuation in test-bolus (HU) | Non-normal | 193.51 | 176.50 | 62.35 | 172.73 | 214.30 | −51.94 | p < 0.01 | 18.92 | −90.35 | −13.52 |
| Simulated attenuation (HU) | Normal | 243.65 | 214.50 | 85.23 | 215.23 | 272.06 | −111.76 | p < 0.01 | 22.57 | −158.64 | −64.88 |
| Change in attenuation (HU) | Non-normal | 196.11 | 177.50 | 59.53 | 176.26 | 215.96 | −46.92 | p = 0.02 | 18.27 | −84.01 | −9.83 |
| Attenuation in the aorta (HU) | Non-normal | 578.57 | 532.50 | 194.57 | 513.70 | 643.44 | −146.73 | p = 0.02 | 60.18 | −268.91 | −24.55 |
| Contrast (ml) | Normal | 78.51 | 80.00 | 13.53 | 74.00 | 83.03 | Not signif. | ||||
| Saline (ml) | Normal | 83.46 | 80.00 | 12.00 | 79.46 | 87.46 | Not signif. | ||||
| Contrast dose per body weight (ml/kg) | Non-normal | 0.98 | 0.95 | 0.24 | 0.89 | 1.06 | −0.25 | p < 0.01 | 0.07 | −0.39 | −0.11 |
| Measured cardiac output (COMR) (L/min) | Normal | 5.05 | 4.80 | 1.13 | 4.67 | 5.42 | 0.92 | p = 0.01 | 0.34 | 0.23 | 1.62 |
| Estimated cardiac output with the compartment model (COEst) (L/min) | Non-normal | 3.24 | 3.30 | 1.25 | 1.54 | 5.51 | 1.80 | p < 0.01 | 0.29 | 1.22 | 2.38 |
| Estimated cardiac output with the Stewart–Hamilton method (COEst] (L/min) | Non-normal | 9.16 | 9.06 | 2.82 | 4.25 | 15.36 | 2.76 | p < 0.01 | 0.80 | 1.14 | 4.38 |
| Ejection fraction (percent) | Non-normal | 63.76 | 65.00 | 7.41 | 51.60 | 75.00 | Not signif. | ||||
Signif., significant.