Inputs:
Select insulin, tablets or GLP1 using the toggle.
Enter dates for the time range of prescriptions being assessed. Typically 6 months or more.
This would usually be the dates of the scripts, up to the penultimate one
Change the dose requirement & dose frequency as appropriate.
Enter the dose of treatment recommended (units/mg/ug etc) for the dosing frequency. e.g. a total of 30 units of bolus insulin/day or 1.5mg of GLP1/7 days
The number of prescriptions in the time range.
For insulin: enter the number of devices & the number of units per device (typically 300).
For tablets or GLP1: enter the dose per interval that the script specifies & the number of days of that dose specified in the script.
The upper bound calculation gives the maximum dose that could have been taken, given the amount of treatment prescribed. Concordance can be lower than the upper bound (as low as zero), but can not exceed it (there is no medication available to do that).
The 1.2 requirement multiplier for insulin comes from DARTS-MEMO View Lancet Article
Insulin requires "wasting" insulin as air shots & giving set priming. It is also common for the remaining insulin in a device to be too little to give a dose, or for devices to be lost/discarded for other reasons. For these reasons a larger number of units is required in order to give the recommended dose.
Insulin variation for CHO counting, dose changes for exercise or for correction dosing may mean that an estimate for recommended dose is quite flexible!
Results are indicative & should be judged carefully & sensitively.
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