Table 3 Adjusted prevalence ratios for the determinants of self-reported rheumatic symptoms, TELECHIK survey, La Réunion Island population, November 2007 to May 2008

Chikungunya:

<0.001

No

1

Yes

2.1

1.7 to 2.7

Gender:

0.08

Male

1

Female

1.2

0.9 to 1.5

Age, years:

<0.001

<20

1

20 to 29

1.4

0.7 to 2.5

30 to 39

1.8

1.1 to 3.0

40 to 49

2.7

1.7 to 4.2

50 to 59

3.3

2.1 to 5.2

60 to 69

3.9

2.5 to 6.1

≥70

3.5

2.2 to 5.6

Body mass index, kg/m²:

0.001

<25

1

25-29.9

1.5

1.2 to 1.8

≥30

1.3

0.9 to 1.7

Comorbidity:^a

0.11

None

1

Osteoarthritis

1.4

1.0 to 2.0

Other^a

1.2

0.9 to 1.5