Table 1.

Baseline global measures.

Construct			Assessment		Description
Background variables
	N/Aa	Demographic questionnaire		Gender, ethnicity, education, income, health care coverage, marital status, employment status
	N/A	Clinical information		Recent severe high/low blood glucose events, method of insulin delivery, pump/injections/continuous glucose monitor use, diagnoses, height and weight
	Personality	10-item personality inventory [17]		10 items, measures personality along 5 dimensions
Diabetes management
	Self-management	Diabetes self-management questionnaire [18]		16 items, higher scores indicate more desirable self-management behavior
	Insulin self-management	Insulin self-management		3 items, inspired by medication adherence items [19], also administered at follow-up
	Diabetes self-care	Self-Care Inventory-Revised [20]		9 items, higher scores signal increased levels of diabetes self-care, 4 subscales
Emotional well-being
	Fear of hypoglycemia	Hypoglycemic attitudes and behavior scale [21]		14 items, higher scores indicate more fear of hypoglycemia
	Anxiety	Generalized Anxiety Disorder Assessment [22]		7 items, higher scores indicate increased severity of anxiety
	Diabetes stigma	Type 1 Diabetes Stigma Assessment Scale [23]		8 items, higher scores indicate more diabetes stigma experienced, 3 subscales
	Emotional regulation	Difficulties in emotion regulation scale [24]		18 items, higher scores reflect greater difficulty with emotion regulation
	Depressive symptoms	Patient health questionnaire [25]		8 items, higher scores reflect greater depression symptoms severity
Other
	Occupational balance	Occupational balance questionnaire [26]		11 items, higher scores indicate a higher level of lifestyle balance
	Social support	Social support questionnaire [27]		12 items, higher scores signal greater satisfaction with social support system

^aN/A: not applicable.