Supplemental Material. Selected Questions from the Online Survey

Manuscript DIAT-D-21-00085 (Boye et al.) Page 1 of 2

Supplemental Material. Selected Questions from the Online Survey

1. How long ago were you diagnosed with type 2 diabetes? [Please insert your response below and select if this amount of time is either in weeks, months, or years. Decimals are allowed.]

 weeks

 months

 years

2. After you were diagnosed with type 2 diabetes, how long was it before your doctor first recommended injectable medication? [Please insert your response below and select if this amount of time is either in weeks, months, or years. Decimals are allowed. If you do not know, please select the response “I don’t know”. ]

 weeks

 months

 years

 I don’t know

3. After your doctor first recommended injectable medication, what was your emotional reaction? Please select up to three emotional states below that best describe your reaction.

 Acceptance

 Angry

 Denial

 Empowered

 Guilty

 Hopeful

 Indifferent

 Overwhelmed

 Relieved

 Sad

 Scared

 Unsure

 Worried

 None of these

4. After your doctor first recommended injectable medication, how long was it before you actually started using injectable medication?

 Same Day

 Within 1 week

 More than 1 week

 More than 1 month

 More than 6 months

 More than 1 year

 I don’t know

Manuscript DIAT-D-21-00085 (Boye et al.) Page 2 of 2

5. What are the reasons you started using injectable medication? [check all that apply]

 To control blood sugar levels

 Oral medication alone was not working

 Exercise and diet alone were not working

 None of these

6. When choosing an injectable treatment for T2D, you and your doctor would consider the effectiveness and safety of the possible treatments. There are also many other factors you might consider. Some of these characteristics of injectable treatments are listed below. Please select the five characteristics below that are most important to you.

 Confidence that you are administering the correct dose

 Connectivity to your phone or another electronic device (some injection devices transmit information about your injections to an online app)

 Dose timing (some medications need to be taken with meals or at the same time every day while other medications are more flexible)

 Dose escalation (some medications start at a lower dose and then have one or more increases to get to a higher dose)

 Dose titration (with some medications like insulin, the dose may be increased or decreased as needed based on your blood sugar level)

 Ease of bringing the injection device with you when it is necessary to inject away from home

 Ease of preparing the injection device for each injection (some medications require extra steps for preparing the device before injecting)

 Ease of selecting or giving yourself the correct dose of medication

 Ease of storing the injection device and medication

 Frequency of injections (for example, daily vs. weekly)

 Handling the needle (some devices require you to attach the needle for each injection while other devices come with a pre-attached needle)

 Overall e ase of using the injection device

 Single-use vs. multi-use (some injection devices are reusable, whereas other are used once before being disposed)

 Size of the injection device (i.e., the injection pen)

 Size of the needle

 The need to r efrigerate (some medications need to be kept cool and others don’t)

 Time it takes to prepare and inject each dose of medication