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TABLE 1

Prevalence of Acquired Primary Lactase Deficiency69 

Examples of groups among whom lactase deficiency predominates (60%–100% lactase deficient) 
    Near East and Mediterranean: Arabs, Ashkenazi Jews, Greek Cypriots, Southern Italians 
    Asia: Thais, Indonesians, Chinese, Koreans 
    Africa: South Nigerians, Hausa, Bantu 
    North and South America: black Americans, Latinas, Eskimos, Canadian and American Indians, Chami Indians 
Examples of groups among whom lactase persistence predominates (2%–30% lactase deficient) 
    Northern Europeans 
    Africa: Hima, Tussi, Nomadic Fulani 
    India: individuals from Punjab and New Delhi 
Examples of groups among whom lactase deficiency predominates (60%–100% lactase deficient) 
    Near East and Mediterranean: Arabs, Ashkenazi Jews, Greek Cypriots, Southern Italians 
    Asia: Thais, Indonesians, Chinese, Koreans 
    Africa: South Nigerians, Hausa, Bantu 
    North and South America: black Americans, Latinas, Eskimos, Canadian and American Indians, Chami Indians 
Examples of groups among whom lactase persistence predominates (2%–30% lactase deficient) 
    Northern Europeans 
    Africa: Hima, Tussi, Nomadic Fulani 
    India: individuals from Punjab and New Delhi 
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