Abstract
Background & Objectives: Migraine is a prevalent and periodic neurobiological headache disorder that is characterized by various neurological and gastrointestinal symptoms and changes in the autonomic nervous system. There is a high correlation between migraine and disorders such as depression and anxiety that affect the psychological health and psychological well–being of individuals. Psychological well–being is one of the advanced constructs of psychology in the last century. One of the variables that seems to be related to psychological well–being is perfectionism. One of the variables that seems to be influential in the relationship between perfectionism and the psychological well–being of people with migraine is negative affects. They refer to the extent to which a person feels unhappy and unpleasant. The results of previous research have shown that people with migraine have many problems in psychological health in addition to physical problems, which affect their psychological well–being. Accordingly, it is important to know the factors affecting psychological well–being.; In this regard, the present study was conducted to model the psychological well–being of migraine patients based on perfectionism with the mediating role of negative affect.
Methods: The current research was correlational and used structural equation modeling. The statistical population of this study consisted of all migraine patients living in Mashhad City, Khorasan Razavi Province, Iran, in 2022. According to Kline (1998), the acceptable number of samples for correlational studies in large populations is between 15 to 20 people for each variable. Considering at least 15 people for each variable is an optimal rule in structural equation modeling that follows multivariate regression. Accordingly, since we have 13 observed variables (6 subscales of perfectionism, negative affect, and 6 subscales of psychological well–being), considering 15 people for each observed variable, the minimum sample size was 195. However, due to the characteristics of the study sample, the high probability of the sample dropout, incomplete questionnaires, and higher generalizability, this number increased to 236 people. Sampling was done using the convenience method, considering the inclusion and exclusion criteria. The inclusion criteria were as follows: lacking acute physical and psychiatric illness and having an age range of 20 to 80 years. The exclusion criteria were incomplete completion of questionnaires and failure to meet any inclusion criteria. After designing the internet link of the questionnaires, the researcher provided them to the participants. In this study, participants answered the Ryff Scale Psychological Well–Being (Short Form) (Ryff & Keyes, 1995), the Multidimensional Perfectionism Scale (Frost et al., 1990), and the Positive and Negative Affect Scale (Watson et al., 1988). Data were analyzed using structural equation modeling with SPSS–27 and AMOS–24 statistical software programs, and the significance level of the tests in this study was considered 0.05.
Results: The total number of research participants was 236. The average ± SD of the participants' age was 33.47±9.35 years. Also, 17.8% of the participants were male, and 82.2% were female. The results showed that the direct path coefficient between perfectionism and psychological well–being was negative and significant (β =–0.347, p<0.001). The direct path coefficient between perfectionism and negative affect was positive and significant (β=0.637, p<0.001). The direct path coefficient between negative affect and psychological well–being was negative and significant (β =–0.401, p<0.001). Also, the coefficient of the indirect effect of perfectionism on psychological well–being through negative affect was significant (β=–0.259, p<0.001). The estimated values for fit indices were RMSEA=0.07, IFI=0.91, CFI=0.90, GFI=0.92, and χ2/df=2.75, all showing that the model had a good fit.
Conclusion: The results of the present study showed that negative affect mediates the structural relationship between perfectionism and psychological well–being in migraine patients. Therefore, these findings can not only be used by specialists in the field of migraine but also be fruitful in helping to promote mental health and improve the psychological well–being of migraine patients.
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