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Table 5 Predicting PIA in eac 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 -1.24 0.36 11.81 0.001 0.29 (0.14 to 0.59)
Sx Durn
(weeks)
n/a -0.03 0.01 11.182 0.001 0.97 (0.96 to 0.99)
SJC /72 <1: 0      
  ≥1: 1 1.42 0.32 19.21 <0.001 4.14 (2.19 to 7.80)
CRP
(g/l)
<5: 0      
  5 to 14: 1 0.64 0.22 8.43 0.004 1.89 (1.23 to 2.92)
  ≥14: 2      
ACPA Neg: 0      
  Pos: 1 4.97 1.07 21.74 <0.001 143.7(18 to 1060)
ESR
(mm/h)
24: 0      
  ≥24: 1 1.00 0.36 7.74 0.005 2.72 (1.34 to 5.51)
Presence of Grade I grey-scale synovitis in ≥3/16 joints No: 0      
  Yes: 1 1.6 0.34 17.22 <0.001 4.91 (2.32 to 10.4)
Constant    -1.62 0.34 22.68 <0.001 -
  1. Results of logistic regression analysis of 5 MSUS paramteres in addition to 7 previously identified independent predictors for PIA amongst 379 patients of EAC 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.