Table 3 Means (SDs in parentheses) of the decline in THI and VAS scores for patients who used and did not use SGs and HAs

Used SG

55.6 (20)

1.9 (2.1)

3.6 (2.5)

4.5 (2.4)

Did not use SG

34.9 (18)

1.2 (2.1)

3.6 (2.7)

3.4 (2.2)

Used HAs

45.6 (24)

1.2 (2.0)

3.8 (2.7)

4.2 (2.2)

Did not use HAs

43.4 (19)

2.0 (2.5)

3.4 (1.9)

4.1 (2.5)