Study design:
The present descriptive-analytical study was conducted in 2020 in select centers of Karaj, the capital of Alborz Province and the fourth most-populated city in Iran and the 22nd most-populated metropolis in the Middle East. On the advice of the Health Deputy of Alborz University of Medical Sciences and based on the information provided by the Integrated Health System of Iran, called the SIB, centers with the largest numbers of referrals of female household heads were selected for this study.
Study Population:
Based on the results reported by Chang e al. [14] in their article and considering a correlation of 0.19 between social relations and life satisfaction, first and second types of error of 0.05 and 0.1, respectively, and using the equation below, sample size was determined as 286. Convenience sampling was carried out until the required sample size was achieved.
Inclusion Criteria
Women responsible for managing their family for any reason, such as the husband’s death, divorce, imprisonment, or disability, Iranian nationality, minimum reading and writing literacy, and no physical or mental illness (registered in the system by self-reporting).
Exclusion criteria
Immigrating during the study and being out of reach for completing the questionnaires, returning incomplete questionnaires, self-reported use of any kinds of psychotropic substances during the study to make them unable to answer the questionnaires.
Data collection and definition of terms
Data were collected using the following questionnaires: Vaux’s Social Support Scale, the Perceived Social Support Scale, the 28-item General Health Questionnaire (GHQ), the Satisfaction with Life Scale, and a socio-demographic checklist.
Supportive roles were assessed using Vaux’s 23-item Social Support Scale (SS-A) and Zimet’s 12-item Perceived Social Support Scale (PSSS).
By definition, mental health is not limited to the absence of mental disorders and also includes a state of well-being based on which the person can actualize his abilities and talents and adapt to daily life pressures [15]; in this study, mental health was assessed using the GHQ.
Vaux’s Social Support Scale
This questionnaire is theoretically based on Cobb’s (1976) definition of social support [16]. This scale contains 23 items in three domains, including family, friends, and acquaintances. The questionnaire items are scored based on a 4-point scale, from totally agree, to agree, disagree, and totally disagree. Four types of scores are given in this scale, including a score for social support from the family, friends and acquaintances as well as a total social support score, which is the sum of the previous three scores. The validity and reliability of this scale have been determined in previous studies. In the present study, the scale’s reliability was confirmed with a Cronbach’s alpha of 0.83.
The Perceived Social Support Scale
The multidimensional Perceived Social Support Scale was developed by Zimet et al. and measures three subscales, including support from the family, friends and significant others, by 12 items scored based on a 7-point Likert scale from totally disagree to totally agree. This scale’s total score is calculated as the sum of the scores of all the items. The validity and reliability of this scale were determined in Iran in 2013 by Bagherian et al., and its reliability was confirmed with a Cronbach’s alpha of 0.84 [17]. In the present study, the scale’s reliability was confirmed with a Cronbach’s alpha of 0.82.
The General Health Questionnaire (GHQ)
This 28-item questionnaire was developed by Goldberg & Hiller (1979) with four subscales, including somatic symptoms (items 1-7), anxiety and insomnia (items 8-14), social dysfunction (items 15-21), and severe depression(items 22-28), each with seven items. Scoring is based on a 0 to 3-point scale, with a cut-off point of 23, which means that the higher is the respondent’s score above 23, the worse is his mental health, and the lower is his score, the more ideal his mental health. The validity and reliability of this questionnaire were confirmed in Iran in 2014 by Najarkolaei et al. with a Cronbach’s alpha coefficient of 0.85 [18].
The Life Satisfaction Questionnaire (Satisfaction with Life Scale, SWLS)
This scale was developed by Diener et al. (1985) in five domains, each with seven options based on a 1-7-point Likert scale, from totally disagree to totally agree. The sum of the scores is determined in the 5-35 range, and higher scores indicate higher satisfaction. The validity and reliability of this scale were assessed in the Iranian population by Bayani et al. in 2007, and its reliability was confirmed with a Cronbach’s alpha coefficient of 0.83 [20]. In the present study, the reliability of this scale was confirmed with a Cronbach’s alpha of 0.85.
Socio-demographic checklist
This checklist contains items about age, education, occupation, marital status, type of marriage, spouse’s status, place of residence, number of children, number of dependents, insurance status, income, and history of illness.
Procedures
The study began after obtaining the required permissions and a code of ethics from the Ethics Committee of Alborz University of Medical Sciences (IR. ABZUMSREC1397). Due to the COVID-19 pandemic and the need for social distancing, the researcher first visited the selected centers and identified the eligible subjects through the SIB system and then contacted them on their registered phone numbers and explained the study objectives to them and then sent them a consent form to fill out by email or through the centers, if they were willing to take part in the study. Once the consent forms were collected, the questionnaires were emailed to those with internet access (Pars Online), and those without internet access were interviewed on the phone and the researcher filled out their questionnaires for them.
The subjects were ensured about the confidentiality of their data and that it was not obligatory to take part in the study or continue their cooperation, and that they would not be deprived of any health services if they chose not to take part. all methods were carried out in accordance with relevant guidelines and regulations
Statistical analysis
This study examined the fit of a conceptual model for the concurrent relationship of supportive roles (perceived support and social support) with mental health and satisfaction with life (Fig. 2). First, the normal distribution of the quantitative variables was assessed using the Kolmogorov-Smirnov test. Path analysis is an extension of conventional regression that shows not only the direct effects but also the indirect effects of each variable on the dependent variables, and the results can be used to provide a rational interpretation of the relationships and correlations observed. Data were analyzed in SPSS-16 and Lisrel-8.8. The results were expressed using Pearson’s correlation coefficient for the correlations and in the form of Beta for the path analysis, and the significance level was set at T>1.96.