Association between temperature and prevalence of ulcerative colitis. The figure shows the association between mean summer temperatures based on registrations from 1960–90 and prevalence of ulcerative colitis based on Cohort of Norway. The y-axis shows the log-odds for prevalence of the disease.
Aamodt et al. BMC Public Health 2013 13:530 doi:10.1186/1471-2458-13-530