Table 1

Baseline characteristics of all 333 respondents

CharacteristicMean (SD; range)n (%)Missing values (%)
Age47.6 (16.6; 18–86)10 (3.0)
Sex9 (2.7)
 Female148 (45.7)
 Male176 (54.3)
Body weight (kg)78 (17.6; 44–190)20 (6.0)
Body mass index (kg/m2)26.2 (4.7; 16.4–48.4)23 (6.9)
Duration of type 1 diabetes (years)22 (15.9; 0.1–85)5 (1.5)
Type of treatment8 (2.4)
 Multiple daily insulin injections216 (66.5)
 Insulin pump therapy109 (33.5)
Latest level of glycated hemoglobin A1c (HbA1c) in %7.6 (1.3; 4.8–14.7)16 (4.8)
Last diabetes counseling14 (4.2)
 <6 months ago260 (81.5)
 7–12 months ago18 (5.6)
 13–24 months ago15 (4.7)
 >2 years ago26 (8.2)
Relationship status18 (4.5)
 Single76 (24.1)
 Relationship52 (16.6)
 Married158 (50.2)
 Divorced23 (7.3)
 Widowed6 (1.9)
Household17 (5.1)
 Single52 (16.5)
 Partner122 (38.5)
 Family134 (42.4)
 Friends1 (0.3)
 Shared apartment7 (2.2)
Highest education21 (6.3)
 Primary school9 (2.9)
 Secondary school/high school52 (16.6)
 Apprenticeship164 (52.6)
 University87 (27.9)
Employment26 (7.8)
 Apprenticeship/study21 (6.8)
 Full time155 (50.5)
 Part-time57 (18.6)
 Unemployed12 (3.9)
 Retired62 (20.2)
Have you ever had diabetic ketoacidosis yourself?22 (6.6)
 Yes, once54 (17.4)
 Yes, several times56 (18.0)
 No98 (31.5)
 I don’t know103 (33.1)
Do you feel that diabetic ketoacidosis is a dangerous complication of type 1 diabetes mellitus?18 (5.4)
 Yes214 (67.9)
 No28 (8.9)
 I don’t know73 (23.2)
Can diabetic ketoacidosis be prevented?20 (6.0)
 Yes237 (75.7)
 No7 (2.2)
 I don’t know69 (22)
Do you feel confident in treating a possible ketoacidosis?34 (10.2)
 Yes120 (40.1)
 No64 (21.4)
 I don’t know115 (38.5)
  • Means with SD, range, absolute number with percentage and number of missing values are given.