Table 3.
Population attributable and etiologic fractions of chikungunya for post-infective syndromes, at population level and among chikungunya-virus-infected subjects, TELECHIK cohort study, Reunion island, 2006–2008
| Population level | |
|---|---|
| Outcomea | PAF (95% CI) (%) |
| LRMSP | 43.2 (34.1–51.1) |
| ICF | 36.2 (27.7–43.7) |
| CFS-like illness | 41.0 (29.9–50.3) |
| Chikungunya virus-infected subjects | |
| Outcomea | EF (95% CI) (%) |
| LRMSPb | 70.3 (61.7–79.0) |
| ICFc | 63.0 (53.9–72.0) |
| CFS-like illnessc | 68.6 (57.8–79.4) |
LRMSP, long-lasting rheumatic musculoskeletal pain (LRMSP); ICF, idiopathic chronic fatigue (ICF); CFS, chronic fatigue syndrome.
Population attributable fractions (PAF) are estimated for adjusted predictors on gender, age and comorbidities.
Each outcome was identified as persistent, remittent-relapsing or lingering, between its first occurrence at the onset of infection and the week before the TELECHIK survey.
Comorbidities controlled are osteoarthritis or other.
Comorbidities controlled are diabetes mellitus, hypertension, ischemic heart disease, asthma, chronic obstructive bronchopulmonary disease, renal failure, cancer. Crude etiologic fractions (EF) are given with 95% confidence intervals (95% CI).