Table 1

Domains in the survey instrument and diabetes registry

DomainSurvey instrumentScaleDiabetes registry
Household and own income

Health insurance
7 Categories
7 Categories
1 (Below 149K DKK) to 7 (>850K DKK)
Weight (kg)/height (cm)
Duration of diabetes (years)
Health status
 MeasurementsSelf-measured BG (mmol/L) after questionnaire completion<5 to >18 mmol/LHbA1c (%)
LDL (mmol/L)
HDL (mmol/L
S-cholesterol (mmol/L)
Systolic BP (mm Hg)
Diastolic BP (mm Hg)
 Mental/physical healthLimitation during physical activity (self-rated NYHA class I-IV)
Well-being and mobility
Life satisfaction
Multiple choice (4 health states)
1 (very dissatisfied) to 10 (very satisfied)
 Severe complicationsSevere hypoglycemia
Night-time hypoglycemia
(total number)
Severe hypoglycemia (total number)
Ketoacidosis (total number)
Foot risk
Foot ulcer
Kidney failure (yes/no)
Apoplexy (total number)
Vascular operation (total number)
Angina (yes/no)
Heart failure (yes/no)
 Minor complicationsMinor hypoglycemic events

(per month)
 Treatment regimenInsulin regimen
Antihypertensive treatment
Antilipidemic treatment
Health behavior
 Daily habitsExercise (intensity/frequency)
Home measured BG
1 (high) to 4 (low)
(number per week)
 Self-efficacyOwn ability to engage in health promoting actions: (1) diet, (2) exercise, (3) dentist visits, (4) GP advice adherence (5) visiting one's GP (primary care utilization), (6) treatment adherence1 (Poor) to 10 (very good)
 Treatment adherenceLevel of treatment adherence1 (not at all) to 4 (fully)
Health beliefs
 Susceptibility to health riskFamiliarity with HbA1c
Understanding of HbA1c and its association with BG in the past 3 months
Satisfactory HbA1c level
Perception of own heart health/condition
Yes/no/do not know
Multiple choice (3 statements)
HbA1c 5.5–10%
1 (poorest) to 10 (best possible)

 Severity of diabetesSpecifying where damage may occur due to poor glucose control (hands, feet, heart, kidneys, eyes, teeth/gums)Yes/no/do not know
 Barriers toward treatment(1) finding the treatment cumbersome, (2) time-consuming or (3) skipping treatments due to financial burden1 (disagree) to 5 (very much agree)
 Benefits of treatment(1) finding it does not improve one's condition much and (2) feeling well despite not always following the treatment1 (disagree) to 5 (very much agree)
  • BG, blood glucose; BMI, body mass index; BP, blood pressure; DKK, Danish Krone; EQ-5D, EuroQOL five dimensions questionnaire; GP, general practitioner; HbA1c, glycated hemoglobin; HDL, high-density lipoprotein; LDL, low-density lipoprotein; NYHA, New York Heart Association.