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Many Asian subjects were seen in London in the early 1970s with megaloblastic anaemia; in a majority of cases, this was dietary in origin. Pernicious anaemia occurs in Asians, but the incidence is probably lower than in Caucasians. Megaloblastic anaemia is now less common in this group, but a population survey in Punjabi females in the late 1970's showed anaemia in 32%, and one or more features of iron deficiency in 76%.

A population-based survey of female Punjabi Indians aged 11 and over now living in Southall, a district in west London, showed a steady and significant increase in blood pressure with increasing age. The crude population prevalence of hypertension, defined according to the criteria of the World Health Organisation, was 16%; for women over the age of 40 it was 62%. About two-thirds of those in the hypertensive range did not know of their high blood pressure. Among those who did know, up to 75% were receiving medical treatment for the condition.