Background
Methods
Scale development
Qualitative sample (n = 38) | Sample for EFA (n = 204) | Sample for CFA (n = 138) | ||||
---|---|---|---|---|---|---|
Mean (SD) | No. (%) | Mean (SD) | No. (%) | Mean (SD) | No. (%) | |
Age
| 45.7 (7.3) | 50. 6 (7.5) | 50.8 (7.2) | |||
Gender
| ||||||
Female | 25 (65.8) | 149 (73) | 107 (77.5) | |||
Male | 13 (34.2) | 55 (27) | 31 (22.5) | |||
Education
| ||||||
Illiterate | 10 (26.3) | 38 (18.6) | 30 (21.7) | |||
Primary & secondary | 21 (55.3) | 140 (68.6) | 88 (63.8) | |||
High school graduated | 6 (15.8) | 23 (11.3) | 15 (10.9) | |||
Higher | 1 (2.6) | 3 (1.5) | 5 (3.6) | |||
Marital Status
| ||||||
Single | 2 (5.3) | 4 (2) | 2 (1.5) | |||
Married | 34 (89.4) | 175 (85.8) | 119 (86.2) | |||
Divorced or Widow | 2 (5.3) | 25 (12.2) | 17 (12.3) | |||
Employment
| ||||||
Housewife | 18 (47.4) | 132 (64.7) | 98 (71) | |||
Employed | 8 (21) | 49 (24) | 36 (26.1) | |||
Student | 2 (5.4) | 0 (0) | 0 (0) | |||
Unemployed | 5 (13.1) | 3 (1.5) | 1 (0.7) | |||
Retired | 5 (13.1) | 20 (9.8) | 3 (2.2) | |||
BMI (Kg/m
2
)
| 29.6 (4.2) | 29.7 (4.2) | 30 (4.8) | |||
Disease duration (year)
| 8.2 (5.4) | 9.1 (5.6) | 11.1 (5.7) |
The main study and data collection
Statistical analysis
Validity
Reliability
Ethics
Results
Participants
Exploratory factor analysis
I HAVE…. | |||||
---|---|---|---|---|---|
Item | Factor 1 | Factor 2 | Factor 3 | Factor 4 | Factor 5 |
1. Somebody who encourages me to keep the recommended diet by my physician or nutritionist. | 0.181 |
0.737
| 0.059 | 0.215 | −0.077 |
2. Somebody who shows how happy she/he is when I keep the recommended diet by my physician or nutritionist. | 0.200 |
0.807
| 0.165 | 0.057 | 0.034 |
3. Somebody who buys the necessary ingredients to cook appropriate foods for diabetics. | 0.317 |
0.615
| 0.234 | 0.095 | 0.098 |
4. Somebody who helps me to schedule for eating meals and snacks. | 0.432 |
0.486
| 0.426 | 0.160 | 0.069 |
5. Somebody who cooks appropriate foods for a diabetic patient for me. | 0.331 |
0.728
| 0.192 | 0.190 | 0.041 |
6. Somebody who warns me when I eat more or less than of my eating plan. | 0.280 |
0.753
| 0.212 | 0.287 | 0.012 |
7. Somebody who eats the foods that I can eat so that I do not have any temptation and can go on my diet. | 0.141 |
0.681
| 0.125 | 0.155 | −0.083 |
8. Somebody who –before any meal or snack- tells me the ingredients of that food are appropriate for me or not. | 0.010 |
0.524
| 0.230 | 0.114 | 0.026 |
9. Somebody who reminds me repeatedly about the necessity of continuing my diet. | 0.156 |
0.673
| 0.404 | 0.153 | 0.105 |
10. Somebody who encourages me to have physical activity regularly. | 0.348 | 0.338 | 0.279 |
0.590
| 0.036 |
11. Somebody who reminds me about various methods of physical activity (exercise, job or household activities). | 0.261 | 0.409 | 0.237 |
0.637
| 0.051 |
12. Somebody who pays the cost of registering in a gym or buying equipment for physical activity. | 0.249 | 0.154 | 0.096 |
0.835
| −0.039 |
13. Somebody who reminds me that I must have more physical activity when I am lazy. | 0.233 | 0.331 | 0.120 |
0.747
| −0.063 |
14. Somebody who asks me to join him/her for exercise. | −0.016 | 0.094 | 0.151 |
0.837
| 0.104 |
15. Somebody who always asks me about the result of my blood glucose test. | 0.059 | 0.434 |
0.577
| 0.247 | 0.110 |
16. Somebody who pays attention and reads the amount of my blood glucose from the glucometer while self-monitoring of blood glucose. | 0.217 | 0.197 |
0.834
| 0.164 | −0.030 |
17. Somebody who helps me to monitor the glucose of my blood by glucometer when I am not strong enough. | 0.307 | 0.195 |
0.794
| 0.128 | −0.010 |
18. Somebody who reminds me about the time of blood glucose test in laboratory every 3 months. | 0.503 | 0.320 |
0.605
| 0.172 | 0.018 |
19. Somebody who checks all the necessary equipment to perform Self-Monitoring of Blood Glucose. | 0.360 | 0.267 |
0.744
| 0.126 | 0.008 |
20. Somebody who encourages me to perform Self-Monitoring of Blood Glucose independently. | 0.427 | 0.309 |
0.553
| 0.117 | 0.074 |
21. Somebody who pays attention to the signs of hypoglycemia in me. | 0.476 | 0.251 |
0.651
| 0.153 | 0.049 |
22. Somebody who gives me educational materials (CD, book and etc.) about foot care in diabetics. |
0.718
| 0.149 | 0.307 | 0.231 | 0.164 |
23. Somebody who reminds me of the daily foot care. |
0.802
| 0.201 | 0.242 | 0.113 | 0.192 |
24. Somebody who encourages me to perform daily foot care. |
0.815
| 0.278 | 0.244 | 0.101 | 0.108 |
25. Somebody who performs daily foot care for me when I am not strong enough. |
0.796
| 0.130 | 0.308 | 0.181 | 0.058 |
26. Somebody who always makes sure that all necessary things for foot care such as warm water and mild soap are available. |
0.728
| 0.335 | 0.130 | 0.230 | 0.064 |
27. Somebody who helps me with foot care. |
0.784
| 0.232 | 0.253 | 0.123 | 0.195 |
28. Somebody who helps and encourages me to quit smoking. | 0.135 | 0.006 | 0.030 | 0.048 |
0.954
|
29. Somebody who registers me in a smoke quitting center. | 0.148 | 0.002 | 0.025 | 0.003 |
0.970
|
30. Somebody who gives me educational materials (CD, book and etc.) about smoking and its effects on diabetics. | 0.171 | 0.027 | 0.017 | 0.006 |
0.948
|
Eigenvalue
|
13.4
|
3.1
|
2.1
|
1.7
|
1.4
|
Explained Variance (%)
|
44.7
|
10.4
|
6.8
|
5.8
|
4.6
|
Cumulative Variance (%)
|
44.7
|
55.1
|
61.9
|
67.7
|
72.3
|
Confirmatory factor analysis
Reliability
Number of items | Mean (SD) | Cronbach’s α coefficient | ICC (n= 15) | |
---|---|---|---|---|
Nutrition | 9 | 2.86 (1.54) | 0.89 | 0.87 |
Physical activity | 5 | 2.45 (1.44) | 0.88 | 0.83 |
SMBG | 7 | 2.64 (1.60) | 0.92 | 0.89 |
Foot care | 6 | 2.17 (1.47) | 0.94 | 0.93 |
Smoking | 3 | 0.75 (1.36) | 0.97 | 0.91 |
Total
|
30
|
2.39 (1.50)
|
0.94
|
0.87
|