Table 1.

Prevalence of hemoglobinopathy in Northern Guangdong Province (n = 10,285).

Hemoglobin variant	No. patients detected	Constituent ratio (%)	Prevalence ratio (%)
Hb Q-Thailand (HBA1: c.223 G > C)	17	36.17	0.17
Hb E (HBB: c.79 G > A)	7	14.89	0.07
Hb New York (HBB: c.341 T > A)	6	12.77	0.06
Hb G-Chinese (HBA2: c.91 G > C)	6	12.77	0.06
Hb G-Coushatta (HBB: c.68 A > C)	4	8.51	0.04
Hb J-Bangkok (HBB: c.170 G > A)	3	6.38	0.03
Hb J-Broussais (HBA1:c.273G > C)	2	4.26	0.02
Hb Ottawa (HBA1: c.46 G > C)	1	2.13	0.01
Hb G-Taipei (HBB:c.68A > G)	1	2.13	0.01
Total	47	100.00	0.46