[Prevalence of diabetes at the time of death in a Swiss hospital: regional differences].

Linked records (n = 12,478) from hospital records and death certificates show important regional differences in the prevalence of diabetes at death in Swiss hospitals (German-speaking area 15.0%, French-speaking area 10.5%, Italian-speaking area 10.4%, p less than 0.002). Reasons for these differences are unclear and call for further research.