Factors Affecting Hypertensive Treatment Adherence: Development and Preliminary Validation of a New Scale

Table 7

Internal consistency of factors affecting the hypertensive treatment adherence scale and intraclass correlation.

No.	Items	Cronbach’s alpha if item was deleted (n = 321)	Corrected item-total correlation	ICC (confidence interval) (n = 50)
4	Taking medication is enough to reduce hypertension, and there is no need to change life style	0.70	0.29	0.78 (0.64–0.87)
2	I believe that if I have no stress, my hypertension will be controlled and there is no need for treatment regime	0.70	0.31	0.73 (0.58–0.84)
26	My body has depended on hypertension, and complete consideration of treatment regime has no effect on it	0.71	0.10	0.82 (0.70–0.89)
33	My hypertension is not treated at all	0.71	0.16	0.82 (0.70–0.89)
40	Due to frequent explanation and education by doctors, I would follow their advice	0.70	0.28	0.68 (0.50–0.80)
42	My family insisted on me not to use foods that are not good for me	0.69	0.40	0.87 (0.79–0.93)
14	I do not like to consider my treatment regime although I am aware of its importance	0.69	0.47	0.85 (0.75–0.91)
43	I do not follow my treatment regime when I am with my friends	0.68	0.50	0.84 (0.74–0.91)
21	I rarely pay attention to my health and treatment regime due to difficulties in my life	0.70	0.26	0.87 (0.79–0.093)
25	I do not take my hypertensive medications because I have to take other drugs as well	0.71	0.09	0.80 (0.67–0.88)
Beliefs and relations		0.83		0.94 (0.90–0.97)
5	I cannot trust in doctors	0.70	0.22	0.70 (0.52–0.82)
39	Because the doctor or nurse had not had a good deal, I do not pay attention to their recommendations	0.70	0.24	0.86 (0.76–0.92)
41	If my doctor is skillful and experienced, I will listen to his advices	0.70	0.26	0.39 (0.12–0.60)
6	Spending money and paying the doctor’s visit is useless	0.70	0.28	0.85 (0.75–0.91)
1	Since my hypertension is genetic, treatment regime has no effect on its control	0.70	0.28	0.80 (0.67–0.88)
32	I do not visit the doctor because my hypertension has not responded to the treatment	0.70	0.32	0.59 (0.38–0.74)
3	I will become depended on antihypertensive medications if I take them regularly	0.71	0.18	0.71 (0.53–0.82)
30	My blood pressure is not controlled even with taking medication and considering diet	0.70	0.22	0.74 (0.58–0.84)
19	I do not check my pressure due to fearing from blood pressure device	0.70	0.30	0.91 (0.85–0.95)
22	When my medications are finished, I will buy them with delay	0.70	0.28	0.81 (0.69–0.89)
50	All my family members pay attention to their health	0.70	0.38	0.30 (0.03–0.54)
48	My wife and children insisted on me to consider my diet and treatment regime	0.70	0.24	0.56 (0.33–0.72)
13	My health is always important for me	0.70	0.28	0.41 (0.15–0.62)
Trust on health providers and family role		0.78		0.87 (0.78–0.92)
12	I consider my diet at party or ceremonies	0.70	0.31	0.84 (0.74–0.91)
24	I do not exercise as I am busy	0.72	0.04	0.80 (0.66–0.88)
23	I eat fast foods such as pizza and sandwich due to lack of time and being very busy	0.71	0.11	0.76 (0.61–0.86)
15	When I am alone, I cannot follow my regimen well	0.69	0.44	0.90 (0.82–0.94)
Busy and being alone		0.73		0.89 (0.81–0.94)
35	I take rarely my medications because of some problems such as coughing during consumption of hypertensive medications	0.72	−0.07	0.86 (0.76–0.92)
36	I do not take my hypertensive medications because of frequent urination by taking such medications	0.72	−0.09	0.81 (0.69–0.89)
16	I do not consider my diet, medicinal regime, or doing exercise due to indifference	0.72	−0.02	0.60 (0.39–0.75)
Medication side effects		0.63		0.87 (0.78–0.92)
45	I eat foods with cool temper to reduce my hypertension	0.72	0.03	0.66 (0.47–0.79)
46	When I eat fatty foods, I use lemon juice to reduce the fatty effect	0.71	0.06	0.84 (0.74–0.91)
Traditional medicine		0.75		0.82 (0.70–0.90)