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Table 1 Summary of the observed prevalence of AS and SS and expected prevalence of SS in eastern and western Uganda, 2007.

From: An up-date on the prevalence of sickle cell trait in Eastern and Western Uganda

Study area

Observed prevalence of AS (%)

Observed prevalence of SS (%)

Expected prevalence of SS*

Mbale/Sironko (Eastern Uganda)

n = 286

17.5

1.75

4.20

 

[95% CI 13.5-22.3]

[95% CI 0.63-4.15]

 

Mbarara/Ntungamo (Western Uganda)

N = 370

3.0

0.0

1.70

 

[95% CI 1.61-5.31]

[95% CI 0.0-1.24]

 

Buundibugyo (Western Uganda)

N = 201

13.4

3

3.70

 

[95% CI 9.35-18.94]

[95% CI 0.31-4.50]

 
  1. * Expected prevalence of SS = square root of AS prevalence according to Mordell and Darlison [16].