Table 2.

Study phase 2a–initial validation: online Australian diabetes-specific quality of life questionnaire completed by adults with type 1 diabetes mellitus (N=364).

Questionnaire section	Brief description of items	Source
Section 1: information sheeta	Overview of the study	N/Ab
Section 2: screening questionsc	Assessment of study eligibility	N/A
Section 3: consent forma	Signed by participant	N/A
Section 4: Australian diabetes-specific quality of life questionnaire	A 28-item questionnaire containing 4 constructs measuring diabetes quality of life using a 10-point Likert scale from “very strongly disagree” to “very strongly agree”	Adapted from [48,57]
Section 5: sociodemographic covariates	Data collection: gender, age, height, weight, diabetes duration, occupation, level of education, etc	Adapted from [61-63]

^aParticipant information and consent form are to be completed online.

^bN/A: not applicable.

^cScreening questions are to be completed online. The response to each question is yes or no. The questions include the following: “I have type 1 diabetes mellitus,” “I am 18 years or older,” and “I have had type 1 diabetes mellitus for one year or longer.”