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Table 4 Predictors of Chikungunya virus-specific IgG titres in subjects ≥ 15 years of age in the TELECHIK study, La Réunion, 2007 to 2008

From: Predictors of Chikungunya rheumatism: a prognostic survey ancillary to the TELECHIK cohort study

Full multiple regression linear model of CHIKV-specific IgG titres (n= 309)
Variable β SD T P-value
Gender 0.143 0.088 1.63 0.105
Age, yrs 0.005 0.002 2.36 0.019
Estimated probability of infection# 0.238 0.290 0.82 0.412
Initial rheumatic involvement 0.143 0.876 1.64 0.102
Time elapsed between infection and test 0.001 0.000 1.94 0.053
Constant 0.810 0.210 3.85 < 0.001
Minimal multiple regression linear model of CHIKV-specific IgG titres ( n = 344)
Variable β SD T P- value
Gender 0.183 0.081 2.25 0.025
Age, yrs 0.006 0.002 2.82 0.005
Initial rheumatic involvement 0.169 0.811 2.09 0.037
Constant 1.088 0.129 8.39 < 0.001
  1. CHIKV, Chikungunya virus. #Derived from the exposure score; fever ± six or more localisations of arthralgias and at least four other symptoms (defined as severe if the three conditions are gathered, low to moderate if not); time elapsed between onset of infection and ELISA test.