Study (author, year)

Method

Number of Patients

Duration* (months)

Chronicity (%)

Age†
(years)

Queyriaux et al. 2008 [2]

retrospective cohort study

168

6

93.7

40.0

Manimunda et al. 2010 [15]

longitudinal follow-up study

203

9

49.0

35.0

Sissoko et al. 2009 [13]

retrospective cohort study

147

15

57.0

52.0

Soumahoro et al. 2009 [14]

retrospective cohort study

199

17

53.0

44.5

Borgherini et al. 2008 [12]

prospective cohort study

88

18

63.6

58.3

Gérardin et al. 2011 [11]

retrospective cohort study

512

24

43.0

36.0

Larrieu et al. 2010 [16]

prospective cohort study

29

26

58.0

49.5

Marimoutou et al. 2010 [10]

retrospective cohort study

101

30

36.7

42.0

*Time between chikungunya infection and study onset.
†Average age of patients studied
Table 1: Summary of the literature retained for the estimation of chikungunya infected chronic patients over time.