Study design and sample
The current research is a semi-experimental study with two groups (control and intervention). The statistical population of the present study is all patients with multiple sclerosis who are members of the Saveh MS Association in 2020 and who are eligible to enter the study. The researcher referred to the location of the MS Association and made a phone call to the doctors and explained the current research (objective of the study, implementation method). Sixty-four people from this community were invited to the present research to complete the sense of coherence questionnaire and obtain information. Then, the samples were divided into two control groups (32) and intervention (32) using the random block method. The entry criteria for participating in this study include informed consent to participate in the study, confirmation of multiple sclerosis by a doctor and membership in the Multiple Sclerosis Association, age between 20-60 years, and not having any acute or chronic physical disorders, mental or psychological disorders such as severe depression, no speech or hearing impairment, not being in the acute stage of the disease, having the ability to use a mobile phone and computer, and the extensive disability status score (EDSS = 4). Exclusion criteria included no cooperation and satisfaction in participating in the study, recurrence of the disease, death of the patient, suffering from acute disorders, and long-term hospitalization. To determine the size of the samples according to Omid's study [21] and according to the 95% confidence level and 80% test power (α=0.05 and β=0.2), the sample size was calculated to be 58 people in two intervention and control groups. According to the probability of 10% spillage, a total of 64 samples were estimated, which were divided into two intervention and control groups.
Ethical considerations
This study has been approved by the Medical Research Ethics Committee of Arak University of Medical Sciences. The code 1399.206IR.ARAKMU.REC was given. All methods were performed with relevant regulations and guidelines.
Procedure
The patients in the intervention group were first interviewed about the content required for the empowerment program. To achieve the content of the empowerment program, the patients of the intervention group became members of WhatsApp and Telegram groups, and the blog address was provided to them. The control group received routine care from the MS Association. For the intervention group, educational materials on the blog, WhatsApp, and Telegram, were sent twice a week for two months. Also, to follow up on education and care, 15 minutes per week based on patients' preferred time, telephone calls were made to them and their questions were answered. The educational materials sent to the patients of the intervention group included the following topics: defining the disease, diagnosis, treatment, complications caused by the disease, recognizing the physical symptoms of the disease and its problems, controlling anxiety and stress, teaching relaxation techniques, problem-solving skills, strengthening the mind, controlling the complications of the disease such as fatigue, pain (pharmacological and non-pharmacological methods), stiffness, muscle spasms, movement disorders and muscle weakness, excretory disorders (intestinal, bladder), sexual disorders, swallowing, vision, cognitive disorders, proper exercise and familiarity with support and assistance systems.
Two months after the intervention, the multiple sclerosis sense of coherence questionnaires were completed again by the intervention and control groups. Then the scores of the sense of coherence questionnaire in both groups before and after the intervention were compared and evaluated.
Data collection
Data collection tools included a demographic questionnaire and Antonovsky's Sense of Coherence questionnaire. The sense of coherence questionnaire was designed by Antonovsky in 1987. Antonovsky’s Sense of Coherence Questionnaire has 13 questions which are extracted from its 29-question form, which is a 7-point Likert scale from 1 to 7. The questionnaire includes three subscales: comprehensibility, manageability, and meaningfulness. In Iran, Mohammadzadeh, Poursharif, and Alipour standardized the mentioned questionnaire on Iranian students after translation, and obtained Cronbach's alpha of the questionnaire in male and female students, respectively, 0.75 and 0.78. To check the validity of the questionnaire, they investigated the relationship between the subscales of comprehensibility, management ability, and meaningfulness with the total score of the questionnaire, and these results were obtained as 0.81, 0.86, and 0.76, respectively. The validity and reliability of the scale were satisfactory. Questions (12, 7, 4, 1) are related to the meaning subscale, questions (11, 9, 8, 6, 2) are related to the comprehensibility subscale, and questions (13, 10, 5, 3) are related to the management ability subscale. Questions (10,7,3,2,1) should be reversed. The minimum score is 13 and the maximum score is 91[22]. To check the reliability of the questionnaire in the present study, the internal consistency method and Cronbach's alpha calculation, which was calculated as 0.79, were used. Also, a qualitative validation method was used for the validity of educational materials. In this way, educational materials were sent to 8 specialists, including neurologists and nursing faculty members, and they provided their opinions on the educational materials. Then the opinions of education experts were changed.
Data analysis
SPSS software version 23 was used for statistical analysis. To report the demographic characteristics of the samples, absolute and relative frequency, mean and standard deviation were used. Chi-square and Fisher’s tests were used to compare the demographic variables of the intervention and control groups. To determine the effect of the distance empowerment program on the sense of coherence of the samples, paired t-tests and independent t-tests were used.