A system for analysis of measured blood glucose values, comprising: - a display device, - a memory device, and - a processor comprising program instructions which when executed cause the processor to: - provide blood glucose measurement information comprising a plurality of measured blood glucose values collected within a measurement time frame according to a testing scheme, each of the measured blood glucose values representing a measured blood glucose value taken at a testing event, - after providing the blood glucose measurement information, perform a pre-analysis of the blood glucose measurement information, - provide analysis data representing statistical blood glucose level information for the plurality of measured blood glucose values by performing an analysis of the plurality of measured blood glucose values, and - provide output analysis data representing the analysis data, wherein the provision of analysis data and / or the provision of output analysis data are performed only if, in the step of performing the pre-analysis, at least one of the following control checks is positive: - a fidelity check, the fidelity check providing a positive result when the plurality of measured blood glucose values comprises a set of measured blood glucose values being representative for the measurement time frame, and - an adherence check, the adherence check providing a positive result when the plurality of measured blood glucose values was collected in accordance with a selected testing scheme; wherein - from the plurality of measured blood glucose values, a set of measured blood glucose values being representative for the measurement time frame is selected, and - the analysis for the selected set of measured blood glucose values is performed. - a display device, - a memory device, and - a processor comprising program instructions which when executed cause the processor to: - provide blood glucose measurement information comprising a plurality of measured blood glucose values collected within a measurement time frame according to a testing scheme, each of the measured blood glucose values representing a measured blood glucose value taken at a testing event, - after providing the blood glucose measurement information, perform a pre-analysis of the blood glucose measurement information, - provide analysis data representing statistical blood glucose level information for the plurality of measured blood glucose values by performing an analysis of the plurality of measured blood glucose values, and - provide output analysis data representing the analysis data, wherein the provision of analysis data and / or the provision of output analysis data are performed only if, in the step of performing the pre-analysis, at least one of the following control checks is positive: - a fidelity check, the fidelity check providing a positive result when the plurality of measured blood glucose values comprises a set of measured blood glucose values being representative for the measurement time frame, and - an adherence check, the adherence check providing a positive result when the plurality of measured blood glucose values was collected in accordance with a selected testing scheme; wherein - from the plurality of measured blood glucose values, a set of measured blood glucose values being representative for the measurement time frame is selected, and - the analysis for the selected set of measured blood glucose values is performed. - provide blood glucose measurement information comprising a plurality of measured blood glucose values collected within a measurement time frame according to a testing scheme, each of the measured blood glucose values representing a measured blood glucose value taken at a testing event, - after providing the blood glucose measurement information, perform a pre-analysis of the blood glucose measurement information, - provide analysis data representing statistical blood glucose level information for the plurality of measured blood glucose values by performing an analysis of the plurality of measured blood glucose values, and - provide output analysis data representing the analysis data, - a fidelity check, the fidelity check providing a positive result when the plurality of measured blood glucose values comprises a set of measured blood glucose values being representative for the measurement time frame, and - an adherence check, the adherence check providing a positive result when the plurality of measured blood glucose values was collected in accordance with a selected testing scheme; - from the plurality of measured blood glucose values, a set of measured blood glucose values being representative for the measurement time frame is selected, and - the analysis for the selected set of measured blood glucose values is performed.