de Mestral C, et al. - Using data from the Bus Santé study, an annual cross-sectional study of adults living in Geneva state, Switzerland, researchers evaluated trends in the prevalence of total [defined as the sum of diagnosed and undiagnosed diabetes] and diagnosed diabetes [defined as having a previous diagnosis, and undiagnosed diabetes as having fasting plasma glucose level of ≥ 7 mmol/l and no previous diagnosis] and in the probability of identifying undiagnosed diabetes in the Swiss population. Eight thousand five hundred thirty-two candidates (51% women) were included in the analysis, out of an original sample of 10,566. In total, over the 13-year period, 711 cases of diabetes were identified. According to results, the age- and gender-standardized prevalence of total diabetes declined from 9.6% to 7.1% between 2005–2009 and 2012–2013, but increased to 8.6% by 2016–2017. The prevalence declined between 2005–2009 and 2014–2015 from 8.3% to 6.1% for diagnosed diabetes, but rose slightly again to 7.0% by 2016–2017. In general, men had a higher prevalence of total and diagnosed diabetes compared with women, except in 2016–2017, when the prevalence of total diabetes was 9.5% among men and 7.7% among women. Diabetes prevalence has remained relatively constant over time. Nevertheless, in the population without diabetes, the likelihood of finding undetected cases of diabetes may increase among men.