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Table 2 The diagnostic value of morning stiffness (different durations) in arthralgia for the presence of arthritis

From: Reappraisal of the diagnostic and prognostic value of morning stiffness in arthralgia and early arthritis: results from the Groningen EARC, Leiden EARC, ESPOIR, Leiden EAC and REACH

  OR (95% CI) adjusted for age and gender Sensitivity Specificity PPV NPV
Leiden EARC      
≥30 minutes 1.24 (0.89-1.73) 31.9% 72.1% 49.5% 55.2%
≥60 minutes 1.49 (1.001-2.20) 21.2% 84.2% 53.5% 55.5%
≥90 minutes 1.98 (1.18-3.30) 13.5% 92.9% 62.0% 55.6%
Groningen EARC      
≥30 minutes 1.63 (1.07-2.47) 40.3% 70.0% 62.3% 48.7%
≥60 minutes 2.21 (1.33-3.69) 27.0% 85.3% 69.3% 48.6%
≥90 minutes 2.16 (1.14-4.10) 16.8% 91.8% 71.7% 47.2%
REACH      
≥30 minutes 1.07 (0.69-1.65) 54.4% 48.2% 53.0% 50.3%
≥60 minutes 1.55 (0.97-2.47) 37.8% 72.6% 59.7% 47.9%
≥90 minutes 2.05 (1.18-3.58) 26.7% 85.1% 65.8% 48.0%
  1. OR, odds ratio; CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value; EARC, Early Arthritis Recognition Clinic; REACH, Rotterdam Early Arthritis Cohort.
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Arthritis Research & Therapy

ISSN: 1478-6362

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