Reference | Country | Number of individuals | Age (years) | Prevalence/1000 | |
---|---|---|---|---|---|
Borderline | Definite | ||||
Roberts et al17* | Australia (Northern) | 1015 | 5–15 | 8.9 | 14.8 |
Beaton et al21† | Kampala, Uganda | 4869 | 5–16 | 12.5 | 2.3 |
Colquhoun et al26 | Fiji | 1666 | 5–14 | 10.8 | 8.4 |
Roberts et al25*‡ | Australia | 3946 | 5–15 | 16.7 | 8.6 |
Engel et al27 | South Africa | 2720 | 4–24 | 15.4 | 4.8 |
Ethiopia | 2000 | 4–24 | 14.0 | 16.5 | |
Beaton et al29 | Gulu, Uganda | 4773 | 5–17 | 29.3 | 10.9 |
Mirabel et al30 | New Caledonia | 17 633 | 9–10 | 9.1§ |
*While the majority of studies have shown a higher prevalence of borderline disease, these two (with identical use of WHF criteria) showed more definite than borderline RHD.
†Echocardiographic studies were initially classified according to the 2006 guidelines and retrospectively reclassified using the 2012 WHF guidelines.
‡High-risk indigenous children only; study also looked at 1053 low-risk children where none met the criteria for definite RHD, and 5 met the criteria for borderline RHD (4.7/1000).
§At time of initial screening, only total RHD prevalence, not breakout between borderline/definite RHD, reported.
RHD, rheumatic heart disease; WHF, World Heart Federation.