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Table 5 Bivariate Analysis (Chi 2 test) testing the association between the initial symptoms of Chikungunya infection associated with non-recovery on the MCA graph and self-perceived recovery status at 30 months by CHIKV + patients (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

  Recovered Non-recovered p*
  N = 48 (56.47%) N = 37 (43.5%)  
Comorbiditya 24 (50.0) 21 (56.8) 0.689
Symptoms at acute stage - - -
Sick leave (yes) 22 (45.8) 26 (70.3) 0.042
Duration of sick leave >4 days 17 (35.4) 21 (56.8) 0.082
Joint swelling 17 (35.4) 15 (40.5) 0.797
Depressed moodb 11 (22.9) 19 (51.4) 0.012
Symptoms at early chronic stage (median: 6 months after infection)
Rheumatic symptomsc    
  Arthralgia 23 (47.9) 12 (32.4) 1.000
  Arthritis 10 (20.8) 18 (48.6) 0.046
Depressed moodc 12 (25.0) 20 (54.1) 0.012
  1. *χ2 test of comparison of distribution of each characteristics between the two groups.
  2. aHistory of at least one of the following pathologies: sprain or dislocation of joints or bones and joint diseases, before CHIK infection.
  3. bSelf-assessed mood coded as “depressed” if checked affected or totally depressed.
  4. cArthralgia = joint pain and/or stiffness. Arthritis = swelling in addition to joint pain and stiffness.