Patent ID: 8626448

Claim:
A urine sugar condition estimation method, comprising the steps of: (1) measuring a urine sugar value A; (2) obtaining an averaged value X of measured urine sugar values measured during a past predetermined period of time, always including all measured urine sugar values measured at the same timing in a one-day life as the timing when said latest measured the urine sugar value A is measured; (3) discriminating whether or not said measured urine sugar value A is less than a discriminating method classification boundary value; (4) when the measured urine sugar value A is less than the discriminating method classification boundary value, calculating a difference between said averaged value X and said measured urine sugar value A; (5) when said difference {X−A} is not less than a positive discriminating reference difference, discriminating as being a urine sugar value decrease; (6) when the measured urine sugar value A is not less than the discriminating method classification boundary value, calculating a ratio between said measured urine sugar value A and said averaged value X; and, (7) when said ratio {A/X} is not greater than a first discriminating reference ratio, discriminating as being the urine sugar value decrease.