18 - 25

N = 13

N (%)*

26 - 30

N = 35

N (%)*

31 - 35

N = 55

N (%)

>35

N = 59

N (%)

p-value˚

Personal barriers

Unawareness of the injection method.

7 (53.8)

18 (51.4)

21 (38.2)

20 (33.9)

0.275

Unawareness of insulin dose control method.

9 (69.2)

22 (62.9)

23 (41.8)

21 (35.6)

0.021

Doubt about the efficacy of insulin.

2 (15.4)

6 (17.1)

8 (14.5)

9 (15.3)

0.990

Fear of (needles, pain at the injection site).

5 (38.5)

18 (51.4)

20 (36.4)

24 (40.7)

0.555

Preference for other treatment methods over insulin.

8 (61.5)

21 (60.0)

31 (56.4)

32 (54.2)

0.935

Past personal experience of insulin-related complications.

0 (0.0)

5 (14.3)

5 (9.1)

10 (16.9)

0.302

Treatment plan complexity.

5 (38.5)

7 (20.0)

6 (10.9)

16 (27.1)

0.068

Relying on others to take insulin.

3 (23.1)

8 (22.9)

11 (20.0)

5 (8.5)

0.200

Religious beliefs.

2 (15.4)

4 (11.4)

0 (0.0)

3 (5.1)

0.047

Lack of confidence in doctors’ opinions.

1 (7.7)

1 (2.9)

2 (3.6)

4 (6.8)

0.763

Forgetfulness.

6 (46.2)

12 (34.3)

17 (30.9)

22 (37.3)

0.740

Family (social) barriers

Lack of family support for taking insulin injections.

2 (15.4)

8 (22.9)

7 (12.7)

8 (13.6)

0.584

Feeling stigmatized.

0 (0.0)

7 (20.0)

1 (1.8)

4 (6.8)

0.009

Past family experience of insulin-related complications.

4 (30.8)

10 (28.6)

10 (18.2)

15 (25.4)

0.613

Side effects barriers

Fear of hypoglycaemia.

8 (61.5)

21 (60.0)

26 (47.3)

42 (71.2)

0.079

Fear of weight gain.

8 (61.5)

19 (54.3)

23 (41.8)

32 (54.2)

0.420

Fear of allergic reactions at the injection site.

4 (30.8)

15 (42.9)

17 (30.9)

30 (50.8)

0.151

Misconceptions about insulin injections

Insulin may lead to stillbirth.

1 (7.7)

3 (8.6)

9 16.4)

11 (18.6)

0.495

Insulin is addictive; the injection will continue for life.

2 (15.4)

11 (31.4)

14 (25.5)

15 (25.4)

0.725

Insulin causes aging.

1 (7.7)

4 (11.4)

4 (7.3)

6 (10.2)

0.908

Insulin negatively affects sexual desire.

0 (0.0)

4 (11.4)

8 (14.5)

8 (13.6)

0.535

Work-related barriers

Long working hours.

1 (7.7)

6 (17.1)

5 (9.1)

12 (20.3)

0.317

Irregular eating times during working hours.

1 (7.7)

7 (20.0)

5 (9.1)

12 (20.3)

0.268

Lack of privacy during injection.

0 (0.0)

4 (11.4)

4 (7.3)

12 (20.3)

0.084