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Table 7 Predicting RA in PIA patients: results of backward stepwise regression, incorporating MSUS variables

From: Predicting persistent inflammatory arthritis amongst early arthritis clinic patients in the UK: is musculoskeletal ultrasound required?

Variable Coding if categorical B SE Wald P-value OR (95% CI)
Age
(years)
<50: 0      
  ≥50: 1 1.26 0.51 6.23 0.013 3.59 (1.32 to 9.81)
Presence of GradeIP ower Doppler synovitis in ≥1/16 joints No: 0      
  Yes: 1 1.70 0.52 10.72 0.001 5.46 (1.98 to 15.1)
JPS n/a 1.39 0.54 6.60 0.010 4.02(1.39 to 11.6)
ESR
(mm/h)
24: 0      
  ≥24: 1 1.17 0.56 4.48 0.034 3.24 (1.09 to 9.60)
ACPA Neg: 0      
  Pos: 1 4.06 0.82 24.74 <0.001 58.1(12 to 288)
Constant    -5.38 1.28 17.64 <0.001 -
  1. Results of logistic regression analysis of maximally discriminatory MSUS paramters in addition to previously identified independent predictors for UA amongst 162 patients of PIA sub-cohort. B values are regression coefficients. CI, confidence interval; OR, odds ratio; SE, standard error of B. Additional abbreviations as per Table 3. See text.