We're finding that it was more varied where you have high neighbourhood ethnic variation and you have multi-generational families in one residence. That seems to be more of a factor than socio-economic status per se. It does play a part. We see a higher risk in lower SES as well as a much bigger difference, almost, from the quintiles of racial diversity, the lowest being around 15 per 100,000 and the highest at the moment being 170 per 100,000.
