Violence is a complex multidimensional phenomenon that occurs at both the family and community levels and is rooted in cultural, social, and structural issues (
23). This study investigated the relationship between the structural social determinants of health and domestic violence against pregnant women. The prevalence of emotional, physical, and sexual domestic violence against pregnant women referred to selected pregnancy care clinics in Tehran, Iran, were 66.3%, 10.2%, and 9%, respectively.
According to UNESCO (2015), 85% of violence against women is committed by their male partners. The prevalence of domestic violence against younger women (15 - 24 years old) ranges from 29.4% to 31.6%, while the corresponding rate among older women (> 24 years old) ranges from 15.1% to 31.6% (
24). Since research on violence during pregnancy currently accounts for 20% of all peer-reviewed nursing research, the prevalence estimates vary. In a systematic review and meta-analysis in 2021, the global prevalence of physical, emotional, and sexual violence was estimated at 9.2%, 18.7%, and 5.5%, respectively. According to recent comprehensive reviews, while some hospital- and clinic-based studies have suggested an increased risk of domestic violence, national and international population-based studies have shown that pregnant women are not at a higher risk of IPV than non-pregnant women; they may even be at lower risk (
25). Although the prevalence of IPV in pregnancy varies in different countries, one-quarter of mothers are at risk worldwide, on average (
26). Clearly, differences in the type of domestic violence in different studies may be due to differences in the definitions of violence, the mothers' understanding of domestic violence, the tools used, sample sizes, and sociocultural and environmental characteristics of the participants.
Various studies have confirmed the effects of socioeconomic and cultural factors on domestic violence. For instance, age, education, women's employment status, economic class, ethnicity, and place of residence affect a woman’s sense of security toward an intimate partner and influence the risk of domestic violence (
27,
28). In the present research, the individual/obstetric factors, including the education and occupation of women and their spouses, ethnicity, women's age at the time of marriage and birth of the first child, type of pregnancy (wanted or unwanted), and the number of pregnancies, had significant associations with domestic violence in pregnant women. In this regard, Bahmani et al., in a meta-analysis of 28 studies, showed that the low education level of the mother, the unemployment of the mother, and the number of children were important factors in the increase of domestic violence during pregnancy (
29), which is in line with the findings of the present study.
In developing countries, domestic violence against women is caused by gender inequality, patriarchy, cultural poverty, socialization, and lack of legal and social protection (
30). However, the relationship between domestic violence and women's employment status is not clear. The findings of the present study indicated the highest rate of domestic violence in working women compared to housewives or self-employed women. Meanwhile, in a study by Abramsky et al., women with an independent income were exposed to a lower risk of physical IPV in the past year. In this study, a higher income was associated with several potential solutions to reduce IPV, such as improvement of female empowerment, reduction of family conflicts, settlement of arguments over the partner's inability to provide for the family, and improvement of couple communication dynamics (
31). The reason for this discrepancy may be variations in the characteristics of the studied samples. Overall, mood changes and needs of pregnant women in the workplace compared to non-pregnant women make them more irritable due to job stress and fatigue. Besides, job and family responsibilities impose an increased burden on these women. Also, women's participation in earning can increase the risk of competition between partners and weaken the man's role as the family's breadwinner; this issue can harm their understanding and empathy and lead to violence against women (
32).
The findings of the present study showed a significant relationship between domestic violence and the education level of women and their spouses. Overall, women with academic education (69%) experienced less domestic violence compared to those with elementary education. The findings of a cross-sectional study by Inal et al. in Turkey also showed that women without formal education and those with only elementary education were four and two times more likely to experience physical violence compared to women with higher education levels, respectively. Apparently, as the education level of each parent increases, their awareness and knowledge of coping with conflicts in relationships is also increased. Moreover, increased education of women familiarizes them with their social rights and enhances their skills and socioeconomic status; consequently, the average rate of domestic violence decreases. It is possible that mothers with more children may tolerate and hide violence due to maternal feelings and love for their children, which could result in the repetition of this behavior by their partners (
33).
Socioeconomic status is one of the critical determinants of health and mortality. Some believe that the SES index involves a combination of education or training, social class (occupation), and income (
34). In the present study, women with working spouses were subjected to domestic violence to a lesser extent than women with unemployed or self-employed spouses (78% and 55%, respectively). Also, for individuals with high or very high-income levels, the likelihood of experiencing domestic violence was 64% and 74% lower than for individuals with very low income, respectively.
Slabbert, in qualitative research on abused low-income women, found that poverty and low family income made them more vulnerable to domestic violence due to limited options and resources, as poverty can act as an inciting factor for this type of conflict (
35). Almost 3 out of every 4 women in the Manisa province of Turkey are unemployed and have no independent income. It can be claimed that women have a lower social status than men in terms of education and employment (
36). Generally, income is one of the most important structural factors related to domestic violence. The woman’s inadequate income and unemployment can increase marital disputes due to financial problems and cause adverse psychological effects. Meanwhile, occupation, financial independence, and optimal economic status are protective factors against all types of violence (
37).
Concerning the relationship between household size and domestic violence, it was found that the probability of domestic violence increases with an increase in household size. Chowdhury et al. showed a significant relationship between the number of family members, marital age, wealth index, and domestic violence in urban slum women of Bangladesh (
38). Evidently, the family structure varies around the world. There is a global trend toward continuous changes in family structure, with a shift toward nuclear families. The findings of some studies have shown that a higher number of family members (extended and non-nuclear families) is associated with a high rate of IPV (
39). In contrast, the results of some studies have revealed that with an increase in family size, the amount of domestic violence decreases (
40). The contradictory findings of these studies require further research to investigate how extended families affect domestic violence by an intimate partner. Given the universality of IPV, it is important to investigate this phenomenon across different relationship and family structures, as well as cultural contexts (
41).
In previous studies, differences in the type and number of independent variables are significant in reporting the predictive power of desired outcomes. In the present study, the independent demographic/obstetric and economic/social variables could separately predict more than 50% of changes in the functional variable (domestic violence). Moreover, a quantitative survey by Talebpour showed that in Ardabil province, Iran, eight independent variables explained more than 50% of the variance in the dependent variable of spousal abuse (
42). So far, several studies have confirmed the importance of violence against pregnant women (
43). Therefore, health-promoting behaviors can be used to maintain and improve maternal health. The behavior and adaptation of pregnant women to different life situations, as well as their impact on maternal and neonatal outcomes, cannot be ignored. Effective measures are necessary for this period, such as physical and mental self-care, healthy behaviors, attention to changes and needs of pregnancy based on socioeconomic and cultural factors, use of stress control methods, having social interactions, and seeking social support (
44).
5.1. Strengths and Limitations
Since healthy behaviors during pregnancy have positive effects on maternal and neonatal outcomes, it is necessary to analyze relevant information among pregnant women in different populations. To the best of our knowledge, there is no comprehensive information available on this phenomenon. Accordingly, the present study aimed to accurately identify the risk factors for domestic violence and to determine the relationship between domestic violence and structural determinants of health (demographic/obstetric and economic/social factors), specifically among pregnant women. The most important strengths of this study were the use of a standard domestic violence tool designed by the WHO and the examination of pregnant women’s views in different weeks of pregnancy regarding violent domestic behaviors. Additionally, most mothers benefited from phone and online services during the COVID-19 outbreak.
The present study attempted to determine the relationship between structural factors and domestic violence based on a review of the literature. While there may be some influencing factors that have not been identified yet, such as genetic factors, it can be difficult or even impossible to measure and study them; this may be considered a limitation of the current research. Also, the uncertainty of the participants' responses due to factors such as fear of retaliation or revenge by their partners and reluctance to involve judicial authorities might have affected the accuracy of investigations into the actual frequency of violent behaviors against them. We tried to eliminate these obstacles to a large extent by ensuring mothers the confidentiality of their information. Although the participants were selected from different areas of Tehran, the findings cannot be generalized for reasons such as cultural and ethnic differences in Iran and differences in measurement methods, and cannot be extended to the entire population of the country. Besides, the spouses of these women were unavailable, and it was not possible to investigate them. It is important to note that this study was conducted during the COVID-19 pandemic, and the negative and widespread psychological effects of this disease on individuals and their families, particularly partners, cannot be ignored.
The conclusions of this research and the proposed solutions are based on the obtained results. It is suggested to conduct further studies in other provinces of Iran regarding the relationship between the structural determinants of health and acts of domestic violence during pregnancy and also to evaluate this relationship in men. It is also recommended to conduct a comparative study of the relationship between structural factors affecting violence in pregnant women with or suspected of COVID-19 and non-pregnant women.
5.2. Conclusions
This study indicated the importance of understanding the prominent role of individual/obstetric and economic/social factors as social structural determinants of health in domestic violence. The high prevalence of domestic violence in pregnancy in the target population suggests that domestic violence is a common problem related to the structural social determinants of health. Screening is the first step in solving this problem. Considering the negative consequences of unhealthy behaviors on the mother and fetus, it is necessary to evaluate the risk factors for domestic violence during pregnancy and to specifically identify pregnant women who are at risk of violence or those who have experienced it.