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Table 4 Association of ultrasound abnormalities with arthritis development at joint level

From: The value of ultrasonography in predicting arthritis in auto-antibody positive arthralgia patients: a prospective cohort study

Joints with

Arthritis -

n = 1745

Arthritis +

n = 78

OR (95% CI)

PPV

Joint effusion grade 2-3

30 (1.7%)

4 (5.1%)

3.07 (1.05-8.94)

12%

Synovitis grade 2-3

31 (1.8%)*

7 (9%)

5.45 (2.32-12.8)

18%

PD grade 1-3

40 (2.3%)†

9 (11.5%)

5.50 (2.57-11.9)

18%

Synovitis and PD

11 (0.6%)

6 (7.7%)

12.9 (4.65-36.0)

35%

Joint effusion and synovitis

5 (0.3%)

0

na

 

Joint effusion and PD

6 (0.3%)

0

na

 
  1. * n = 1735 (0.5% missing), † n = 1726 (1% missing), CI, confidence interval; na, not applicable due to low numbers; OR, odds ratio; PD, power Doppler; PPV, positive predictive value.