Cases n (%)

Controls n (%)

VAS before treatment

4 - 6

49 (22.2)

35 (17.1)

7 - 9

134 (60.9)

163 (79.9)

10

37 (16.8)

6 (2.9)

Total

220 (100)

204 (100)

P-value = 0.04

VAS after 3 months

1 - 3

188 (87.1)

101 (50.6)

4 - 6

28 (12.9)

90 (45)

Total

216 (100)

200 (100)