Previous relevant PRO measures include the Diabetes Treatment Satisfaction Questionnaire (DTSQ) [35], Insulin Delivery System Questionnaire (IDSQ) [29], Insulin Injection Preference Questionnaire (IIP-Q) [10], Insulin Treatment Satisfaction Questionnaire (ITSQ) [42], and the Treatment Related Impact Measures for Diabetes and Diabetes Devices (TRIM-D) [34], among others. Here, INS is linked to diabetes mellitus.