Comparison of certain haemodynamic variables in primary Sjögren's syndrome (SS) patients and controls recorded during the blood flow examinations
| Group | SBFfinal,carbachol/ SBFbasal,carbachol | SBFfinal,saline/ SBFbasal,saline | dSBF | dCVR | Mean RR (msec) | Mean SBP (mm Hg) | Mean MBP (mm Hg) | Mean DBP (mm Hg) |
| SS patients | 1.89 (1.05)* | 0.94 (0.29) | 2.07 (1.12)† | 0.64 (0.32)‡ | 827.9 (109.6) | 132.4 (22.0) | 95.9 (16.5) | 76.3 (14.9) |
| Controls | 2.72 (1.27) | 0.86 (0.19) | 3.30 (1.79) | 0.38 (0.17) | 797.0 (117.3) | 128.6 (14.9) | 93.8 (9.8) | 74.9 (7.5) |
Data shown as mean (SD). SBF: skin blood flow; CVR: cutaneous vascular resistance; RR: RR interval on ECG; SBP: systolic arterial blood pressure; MBP: mean arterial blood pressure; DBP: diastolic arterial blood pressure. SBF and CVR values are in arbitrary units. For the calculation of dSBF and dCVR, see the text (Methods section).*p=0.048, †p=0.019, ‡p=0.013.