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

Table 3 Predictors of Chikungunya rheumatism issues in subjects ≥ 15 years (final model), TELECHIK study, La Réunion, 2007-2008

Outcomes (versus recovery as reference)	Relapsing rheumatic musculoskeletal pain			Lingering rheumatic musculoskeletal pain
Determinants	Adjusted OR	95% CI	P-value	Adjusted OR	95% CI	P-value
Gender
Male	1			1
Female	0.92	0.44, 1.92	0.831	1.03	0.45, 2.31	0.951
Age
15 to 29 yrs	1			1
30 to 44 yrs	2.08	0.81, 5.32	0.124	2.29	0.74, 6.99	0.146
45 to 59 yrs	2.93	1.00, 8.57	0.049	6.35	1.82, 22.10	0.004
≥ 60 yrs	10.44	3.50, 31.10	< 0.001	22.30	6.36, 78.06	< 0.001
Initial rheumatic involvement
Low to moderate^†	1			1
Severe^‡	3.60	1.58, 8.21	0.002	5.52	2.20, 13.81	< 0.001
CHIKV-specific IgG titre (per one unit increase)	3.16	1.82, 5.48	< 0.001	6.16	2.88, 13.20	< 0.001

OR, odds ratio; CHIKV, Chikungunya virus. All estimations and P-values are weighted by the sampling scheme. All subjects had joint or muscle pain at disease onset. ^†Joint or muscle pain with at most two of the three following conditions: fever, six or more localisations of arthralgias, or at least four other symptoms; ^‡fever and six or more localizations of arthralgias and at least four other symptoms.

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