"Hip fracture rates for females in the non-dairy, West African tsetse belt nations of Nigeria and Cameroon average 3.0 hip fractures per 100 000 for women aged 50 years and older.3,4 Among these Bantu-speaking (Niger-Kordofanian) agriculturalists, the rate of lactase non-persistence is 90+ percent. Kenya, on the other hand, is located outside the tsetse zone. Dairy farming/pastoralism is prevalent, and the rate of post-menopausal hip fractures averaged 243 per 100 000.5,6"
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