Table 3 Association between baseline risk factors and worsening of knee pain

N

192

63

 Mean (SD) (mm)

4.24 (3.44)

6.20 (4.09)

1.15 (1.06–1.24)

1.11 (1.02–1.20)

 Effusion ≥ 4 mm, n (%)

79 (41.58)

40 (63.49)

2.44 (1.36–4.40)

1.95 (1.05–3.64)

 Mean (SD) (mm)

2.06 (2.89)

3.35 (3.35)

1.14 (1.04–1.24)

1.09 (0.99–1.20)

 Thickness ≥ 4 mm, n (%)

45 (23.68)

24 (38.10)

1.98 (1.08–3.64)

1.40 (0.72–2.74)

Power Doppler signal, n (%)

8 (4.17)

1 (1.59)

0.37 (0.05–3.03)

0.47 (0.06–4.02)

Global radiographic score (0–-60), mean (SD)

5.81 (7.19)

13.58 (9.40)

1.11 (1.07–1.15)

1.10 (1.06–1.14)

Radiographic OA, n (%)

44 (23.16)

39 (62.90)

5.63 (3.04–10.41)

4.73 (2.46–9.10)

Quadriceps strength (kg, lowest tertile)

66 (34.74)

34 (53.97)

2.20 (1.24–3.93)

1.89 (1.04–3.46)