Flexible glucose analysis using varying time report deltas and configurable glucose target ranges

A diabetes data management system selects variable threshold parameters to that are utilized in a report. A first low threshold glucose reading and a fist high threshold glucose reading for a before meal event timeframe are selected. A second low threshold glucose reading and a second high threshold glucose reading are selected for an after meal event timeframe. The threshold readings are stored in a database. The diabetes data management system analyzes glucose behavior around meal events. The system receives a plurality of glucose readings for a time period, receives a first time range as a pre-meal analysis period for the first meal event and receives a second time range as a post-meal analysis period for the first meal event. The system creates a graph which highlights the pre-meal analysis period, the post-meal analysis period, and displays the plurality of glucose readings for the time period.