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Table 2 Distribution of initial severity scores calculated with the first factorial axis of the multiple correspondence analysis according to rheumatic disorders reported by CHIKV + patients in 2008 (N = 85), cohort of French Gendarmes (2006–2008)

From: Identification of initial severity determinants to predict arthritis after chikungunya infection in a cohort of French gendarmes

  No rheumatic disordersd Arthralgiad p* Arthritisd p*
  N = 13 (15.3%) N = 33 (38.8%)   N = 39 (45.9%)  
Median overall severity score (IQ) 0 (0–39.7) 60.8 (22.3-79.6) 0.024 73.2 (60.9-82.3) 0.001
Median acute stage severity score (IQ) 0 (0–43.3) 60.0 (24.9-78.8) 0.042 75.4 (56.5-82.0) 0.002
Median early chronic stage severity score (IQ) 0 (0–61.7) 61.7 (31.1-89.1) 0.025 72.6 (50.3-100.0) 0.001
  1. IQ: interquartile 25%-75%.
  2. *Kruskal-Wallis test comparing the distribution of severity scores according to rheumatic symptoms, considering “No rheumatic disorders” as reference.
  3. dArthralgia = joint pain and/or stiffness. Arthritis = swelling in addition to joint pain and stiffness.