“…Although most abnormal hemoglobins have limited clinical significance, a small number of homozygotes or if combined with thalassemia will present with significant anemia, such as Hb S/S and Hb E/β 0 . 6,7 The study of hemoglobinopathy in China was initiated in the 1960s, and in the 1980s, Chinese scientists conducted a general survey of hemoglobinopathy in nearly one million people covering 28 provinces nationwide. That survey showed that the average carrier rate of abnormal hemoglobin in Chinese population was 0.33%, and the distribution showed a significant difference between the south (0.37%) and the north (0.29%).…”