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. 2021 Nov 12;100(45):e27713. doi: 10.1097/MD.0000000000027713

Table 2.

Prevalence of α-thalassemia in Northern Guangdong Province (n = 10,285).

Genotypes Phenotype Case number Constituent ratio (%) Prevalence ratio (%)
--SEA/αα α0 960 71.64 9.33
–α3.7/αα α+ 161 12.01 1.57
–α4.2/αα α+ 64 4.78 0.62
–α3.7/--SEA α+0 52 3.88 0.51
αCSα/αα α+ 34 2.54 0.33
αWSα/αα α+ 25 1.87 0.24
–α4.2/--SEA α+0 16 1.19 0.16
αQSα/αα α+ 10 0.75 0.10
αCSα/--SEA α+0 9 0.67 0.09
αQSα/--SEA α+0 4 0.30 0.04
αWSα/--SEA α+0 3 0.22 0.03
–α3.7/–α4.2 α++ 2 0.15 0.02
Total 1340 100.00 13.03