Conclusions
Diabetes
DISEASE, COMPLICATIONS, DIABETES
In summary, this is the first published study validating data on microvascular complications from the Swedish National Diabetes Register (NDR). We found that they largely display very good agreement with source data from EHRs. This is comparable to other Swedish registers used in RRCTs. RRCTs offer a cost-effective way to evaluate clinical interventions in a real world setting, and they are being conducted to an increasing extent in several disease areas.