CCN2 and carpal tunnel syndrome: The expression of CTGF in blood vessels of control samples (4.70% ± 3.47%) was significantly lower compared to CTS (9.80% ± 3.46%; p = 0.023; d = 1.473), DUF (20.20% ± 5.16%; p < 0.0001; d = 3.526), and DAF samples (13.20% ± 3.36%; p = 0.0002; d = 2.490).