Table 3.
Comparison of prevalence estimates from Africa and Asia of rickets-like deformity associated with calcium deficiency.
| Country (region) | Survey |
Age |
Sample | Number |
Methoda | Prevalence % |
Reference | ||
|---|---|---|---|---|---|---|---|---|---|
| Date | (y) | Screened | All | Boys | Girls | ||||
| All children and adolescents | |||||||||
| The Gambia (West Kiang) | 2007 | < 18 | Population | 6221 | PS | 3.3 | 4.3 | 2.3 | This paper |
| PS + ME | 0.6 | 0.9 | 0.2 | ||||||
| Bangladesh (National) | 2008 | < 16 | Population | 20,000 | PS + ME | 1.0 | 1.0 | 1.0 | [16] |
| Bangladesh (Chittagong) | 2008 | < 16 | Population | 3249 | PS + ME | 2.2 | – | – | [16] |
| Younger children | |||||||||
| The Gambia (West Kiang) | 2007 | < 5 | Population | 1777 | PS | 5.7 | 8.3 | 2.9 | This paper |
| PS + ME | 1.5 | 2.3 | 0.6 | ||||||
| Nigeria (Jos) | 1998 | < 3 | Community | 218 | PS | 9.2 | 8.3 | 10.1 | [14] |
| Nigeria (Jos) | 2012 | < 2 | Community | 647 | PS + ME | 1.2 | – | – | [15] |
| Bangladesh (National) | 2008 | < 5 | Population | 7730 | PS + ME | 1.6 | – | – | [16] |
| China (Shanxi Province) | 2007 | < 2 | Population | 250 | PS | 41.6 | – | – | [4] |
| PS + ME | 3.7 | – | – | ||||||
a
PS = using physical signs only; PS + ME = using physical signs with medical examination of suspected cases.