Zhao Q, et al. - In patients with type 2 diabetes, researchers evaluated the correlation between fasting plasma glucose (FPG) variability levels and the risk of retinopathy and all-cause mortality via studies found on PubMed and EMBASE. The relationship between all-cause mortality and FPG variability was not significant for median or mean FPG variability under 20%. According to this systematic review and meta-analysis, in type 2 diabetes patients, high FPG variability levels were positively related to the risk of retinopathy and all-cause mortality.