Type 1 diabetes and environment . . . and other stories
BMJ 2020; 369 doi: https://doi.org/10.1136/bmj.m2104 (Published 04 June 2020) Cite this as: BMJ 2020;369:m2104
Childhood diabetes
Mapping 14 000 incident cases of childhood type 1 diabetes across the UK shows that risk is higher in rural and coastal areas than in towns and cities. A linked ecological analysis of environmental and demographic variables identified several factors, including poor air quality, outdoor light at night, and higher population density that were negatively associated with the incidence of diabetes (Diabetologia doi:10.1007/s00125-020-05087-7). The surprising conclusion is that aspects of the urban environment protect against diabetes.
Evolution of migraine
In 2008, more than 1000 people with migraine took part in a survey. Questioned again a decade later, more than half reported that their headaches had improved and that they were less likely to be using preventive treatment (Headache doi:10.1111/head.13774). Non-smokers were more likely to improve than smokers. People with frequent migraine at the time of the initial survey improved most, but since …
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