Table 1. Characteristics of 51 patients with Chikungunya infection imported from Indian Ocean Islands between April 2005 and October 2006, to Laveran Military hospital, Marseille, France.
| Demographic and epidemiological data | |
| Median age (ranges) | 54.0 years (21–78 y) |
| Sex ratio M/F | 1.04 (26/25) |
| Chronic general or rheumatic disease | 37 |
| Year of contamination | |
| 2005 | 12 |
| 2006 | 39 |
| Location of contamination | |
| Reunion | 32 |
| Comoros archipelago | 9 |
| Mauritius | 4 |
| Madagascar | 3 |
| Seychelles | 1 |
| Reunion or Mauritius | 1 |
| Location of disease onset | |
| Western Indian Ocean | 34 |
| Mainland France | 17 |
| Mean duration of stay | |
| Residents in Western Indian Ocean | 9 days |
| No residents | 54 days |
| Hospitalization | |
| During early (acute) stage | 4 |
| During chronic stage | 8 |
| Acute stage (within the first 10 days) | |
| Fever (mean duration) | 47 (3.5 days) |
| Mucous manifestations | |
| Gingival or nasal bleeding | 3 |
| Conjunctivitis | 3 |
| Mouth ulcers | 2 |
| Peripheral arthralgias/ arthritis | 50 |
| Number of involved joint groups | 51 |
| None | 1 |
| Less than 10 | 20 |
| Ten or more | 30 |
| Hands and/or feet involvement | 48 |
| Symmetry of joint involvement | 44 |
| Periarticular oedema | 20 |
| Axial involvement | 29 |
| Tenosynovitis | 17 |
| Rash | 21 |
| Pruritis | 10 |
| Nervous tunnel syndrome | 3 |
| Peripheral vascular disorder | 3 (finger coldness) |
| Complication | 1 (acute myocarditis) |
| Chronic stage (after the 10th day) | |
| Chronic joint pain and/or stiffness | 48 |
| Hand and/or feet involvement | 47 |
| Symmetry of joint involvement | 43 |
| Exacerbation of pre-existing pains | 14 |
| Axial involvement | 21 |
| Tenosynovitis/tendonitis/tendon rupture | 34 |
| Nervous tunnel syndrome | 17 |
| Peripheral vascular disorder | |
| Raynaud syndrome | 5 |
| Erythermalgia | 3 |
| Finger coldness | 4 |
| Pulpar necrosis | 1 |
| Short-term general corticotherapy | 26 |
| Once | 14 |
| Twice | 8 |
| Three times | 3 |
| Four times | 1 |
This table reports the most frequent signs and symptoms, regardless of duration.
Clinical characteristics of 39 of these patients have been described elsewhere [1].