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Pakistani/Indian origin
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Current steroid medication
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Participants are screened by an oral glucose tolerance test to identify those with impaired glucose tolerance (IGT) and/or impaired fasting glycaemia (IFG)
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Living in Edinburgh or Glasgow areas
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Pregnancy
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Recruits with IGT/IFG plus any family volunteers are randomised into two groups, one group having 15 dietitian contacts, the other 4 contacts, over 3 years
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Age ≥ 35 years
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Expectation of emigration, or a medical condition indicating adherence to the study intervention would be unlikely
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Dietitians visit the participating families in their homes, to provide advice and motivational support in relation to losing weight and increasing physical activity
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Waist ≥ 90 cm (35in) for men and ≥ 80 cm (31in) for women
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