Table 5 Mean thickness of synovium and mean count of color Doppler pixels in the perisynovial regions of joints of patients from Canada and China centers according to origin of ultrasound operators and patients’ data
Origin of ultrasound operators | Origin of patients’ data | Mean thickness of synovium (mm) - gray-scale US | p value (between values according to origin of patients’ data) | Mean count of color Doppler pixels | p value (between values according to origin of patients’ data) |
|---|---|---|---|---|---|
Canada | Canada | 2.1 | P < 0.0001 | 930 | P = 0.003 |
Canada | China | 4.1 | 3,633 | ||
China | Canada | 2.0 | P < 0.0001 | 868 | P = 0.002 |
China | China | 3.9 | 3,796 |