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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.