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J Korean Med Sci. 2024 Jul 01;39(25):e192. English.
Published online May 30, 2024.
© 2024 The Korean Academy of Medical Sciences.
Original Article

Association Between Economic Activity and Depressive Symptoms Among Women With Parenting Children

Cho Rong Kim,1,2 Il Yun,2,3 Soo Young Kim,2,3 Eun-Cheol Park,2,4 and Jaeyong Shin2,4,5
    • 1Department of Health Policy Management, Graduate School of Public Health, Yonsei University, Seoul, Korea.
    • 2Institute of Health Services Research, Yonsei University, Seoul, Korea.
    • 3Department of Public Health, Graduate School, Yonsei University, Seoul, Korea.
    • 4Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea.
    • 5Department of Policy Analysis and Management, College of Human Ecology, Cornell University, Ithaca, NY, USA.
Received January 29, 2024; Accepted May 21, 2024.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background

Balancing parenting and work life poses challenges for women with children, potentially making them vulnerable to depression owing to their dual responsibilities. Investigating working mothers’ mental health status is important on both the individual and societal levels. This study aimed to explore the relationship between economic activity participation and depressive symptoms among working mothers.

Methods

This study was a cross-sectional study and used data from the Korea National Health and Nutrition Examination Survey collected in 2014, 2016, 2018, and 2020. The participants in the study were women aged 19 to 50 who were residing with their children. In the total, 3,151 participants were used in the analysis. The independent variable was economic activity, categorized into two groups: 1) economically active and 2) economically inactive. The dependent variable was the depressive symptoms, categorized as present for a Patient Health Questionnaire-9 score of ≥ 10 and absent for a score < 10. Multiple logistic regression analysis was performed to assess the association between economic activity and depressive symptoms, and sensitivity analyses were performed based on the severity of depressive symptoms.

Results

Among women with children, economically active women had reduced odds ratio of depressive symptoms compared with economically inactive women (odds ratio [OR], 0.54; 95% confidence interval [CI], 0.36–0.80). In additional analysis, women working as wage earners had the lowest odds of depressive symptoms (OR, 0.43; 95% CI, 0.28–0.66). Women working an average of 40 hours or less per week were least likely to have depressive symptoms (OR, 0.42; 95% CI, 0.25–0.69).

Conclusion

Economic activity is significantly associated with depressive symptoms among women with children. Environmental support and policy approaches are needed to ensure that women remain economically active after childbirth.

Graphical Abstract

Keywords
Economic Activity; Depressive Disorder; Women; Working Women; Parenting

INTRODUCTION

Since the industrial era, women’s economic activity has increased globally and remains vigorous in contemporary society.1 In 2022, the employment rate for 15–64 years old in South Korea was 68.5%, with women accounting for 60.0% of this figure. This rate notably exceeded the OECD average of 62.3% for the same year (Fig. 1).2 Gender-neutral job choices have widened the occupational range among women,3 enhancing economic participation4 and positively influencing household income and national growth,5 along with their social status.6

Fig. 1
Labor force participation rate of women aged 15–64 (2000–2022).
(Data: OECD Labour Force Statistics, 2022).

The economic activity of working mothers constitutes a significant portion of women’s economic participation. Despite the challenges of raising children, 60% of married women in South Korea with children aged < 18 years actively participate in the economy.7 Working mothers maintain economic activity by adjusting their work patterns to accommodate childcare, or by re-entering the workforce in new jobs that meet their childcare needs.8, 9

However, working mothers are facing the dual demands of childrearing and professional roles, a balancing act that often decreases their personal time and increases stress.10 Additionally, they must concurrently manage their work tasks and child-related events. Unforeseen circumstances requiring the sudden use of annual leave or early departure can impede their ability to fully concentrate on work,11 and the additional burden of household tasks after work further constrains personal time.8, 12

The phenomenon of work-family conflict imposes substantial stress and strain on employed women.13 Prior investigations have illuminated that role overload among women with dependents precipitates familial discord, adversely impacting their psychological well-being.14, 15, 16, 17, 18 This revelation has spurred scholarly inquiry into variables that could ameliorate work-family tension.19, 20 Notably, the provision of support from external sources is underscored as crucial in enhancing the life quality of working mothers.14

Although women with children face challenges associated with balancing work, their participation in economic activities can still have significant personal meaning.21 By tackling various work responsibilities, women can experience self-efficacy and gain confidence in planning purposeful and meaningful lives.22 Thus, women’s economic activities enhance their empowerment both in the workplace and at home, positively impacting them at the personal level.14

Working mothers face a range of issues that critically affect their mental health, making the examination of their mental well-being during this period vital from both social and economic perspectives. This study aimed to investigate the relationship between economic activity and depressive symptoms in women with children. Additionally, we examined whether different economic activity conditions were associated with depressive symptoms. Our findings underscore the significance of formulating mental health policies and response strategies tailored to working mothers.

METHODS

Study design and data source

We used data from the Korea National Health and Nutrition Examination Survey (KNHANES) from 2014, 2016, 2018 and 2020. The KNHANES is a nationally-representative statistical survey organized by the Korea Centers for Disease Control and Prevention, in order to identify health status and health behaviors of Korean population. It has been conducted every three years since 1998 and annually since 2007. The survey used stratified and multistage cluster probability sampling to select individuals aged 1 year and older residing in South Korea. KNHANES collects health interviews, physical examinations, and nutritional surveys to provide the basis for health-related policies in South Korea. All health screening procedures are performed by trained medical staff following standardized protocols.23

Participants

The total number of female participants in the four-year study was 16,947. Of these, 6,738 women between the ages of 19 and 50, who were currently living with children, were included in the analysis. Participants included both married (2,986, 94.8%) and single women (165, 5.2%). After excluding missing values for each question, 3,151 women were finally selected for the analysis (Fig. 2).

Fig. 2
Flow chart of participating women in the study.

Variables

The independent variable was economic activity, and the respondents were categorized into two groups: 1) those who were economically active and 2) those who were economically inactive. The criteria for economic activity included working at least 1 hour in the past week for income or working as a contributing family worker for over 18 hours. This classification adheres to the criteria established by the Korean Economically Active Population Survey. Individuals on temporary leave from their usual employment were included in the economically active group. In additional analysis, we used the Korean Standard Classification of Occupations codes to classify economic activity by job type. The average weekly working hours were analyzed based on the legal working hours of 40 hours per week, as stipulated in the Korean Labor Standard Act, with overtime hours categorized into 10-hour increments.24

The dependent variable was depressive symptoms, which were measured using the Patient Health Questionnaire-9 (PHQ-9). The PHQ-9 consists of nine questions about depressive symptoms experienced in the last two weeks, based on the diagnostic criteria for major depressive disorder in the Diagnostic and Statistical Manual of Mental Disorders.25 To assess the level of depressive symptoms, respondents self-reported the frequency of their symptoms for each item as not at all, several days, more than one week, or nearly every day, with scores of 0, 1, 2, and 3 assigned to each response, respectively. The total PHQ-9 score ranged from 0 to 27, with scores of ≥ 10 and < 10 indicating the presence and absence of depressive symptoms, respectively. For sensitivity analysis of multinomial regression, we categorized the severity of depressive symptoms based on PHQ-9 scores into four categories: 1) none (PHQ-9 score 0–4), 2) mild (PHQ-9 score 5–9), 3) moderate (PHQ-9 score 10–14), 4) and severe (PHQ-9 score ≥ 15).26

The covariates in this study included demographic factors such as sex, age, education level, and marital status; socioeconomic factors such as household income and the number of economically active family members, excluding the respondent; and health behavior factors such as chronic diseases, smoking, drinking, and a diagnosis of depression. Additionally, we considered factors potentially influencing economic activity, such as the number of children and the age of the last child.10, 27

Statistical analysis

The chi-square test was used to determine the general characteristics of the respondents. Multiple logistic regression analysis adjusting for covariates was performed to investigate the association between economic activity and depressive symptoms in women with children. To examine the complex relationship between economic activity and depressive symptoms among women with children, we conducted subgroup analyses stratified by independent variables. We also conducted additional analyses of economic activity conditions by occupation type, employment status, full-time status, and hours worked to assess the association of different economic activity conditions with depressive symptoms. To analyze the severity of depressive symptoms, we conducted multinomial logistic regression using four dependent categories. The results were presented as odds ratios (ORs) with 95% confidence intervals (CIs). All statistical analyses were performed using SAS software (version 9.4; SAS Institute, Cary, NC, USA). A P value of < 0.05 was considered statistically significant.

Ethics statement

The KNHANES was reviewed and approved by the Institutional Review Board of the Korea Disease Control and Prevention Agency (IRB Nos. 2013-12EXP-03-5C, 2018-01-03-P-A, 2018-01-03-2C-A). All respondents in the KNHANES provided written informed consent. No additional ethical approval was required for the current study because the KNHANES complied with the Declaration of Helsinki and publicly provided de-identified data.

RESULTS

Table 1 shows the general characteristics of the respondents. Of the 3,151 participants, 150 (4.8%) were women with depressive symptoms and 3,001 (95.2%) were women without. In the group of economically active women, 66 (3.7%) had depressive symptoms. In contrast, among those not engaged in economic activities, 84 (6.3%) had depressive symptoms. For women with children, there was a significant association between economic activity and depressive symptoms.

Table 1
General characteristics of the study population

Table 2 shows the results of the multiple regression analysis of the association between economic activity and depressive symptoms. Economically active women were associated with reduced odds ratio of having depressive symptoms, compared to those economically inactive (OR, 0.54; 95% CI, 0.36–0.80).

Table 2
Results of factors associated with depressive symptoms

Table 3 presents the results of the subgroup analysis stratifying the independent variables using multiple regression. Among women in their 40s and 50s with children, the odds of depressive symptoms were reduced in the economically active group compared to the economically inactive group (OR, 0.39; 95% CI, 0.23–0.66). Among women whose youngest child was aged 16 years of age or older, the odds of depressive symptoms were lower in the economically active group compared to the non-economically active group (OR, 0.33; 95% CI, 0.13–0.83).

Table 3
The results of subgroup analysis stratified by independent variables

Table 4 shows the results of additional analyses conducted to confirm the association of economic activity with depressive symptoms according to various economic activity conditions. In the analysis of employment status, women working as wage earners had the lowest odds of depressive symptoms compared to other occupational groups (OR, 0.43; 95% CI, 0.28–0.66). Women working an average of 40 hours or less per week had the lowest odds of depressive symptoms (OR, 0.42; 95% CI, 0.25–0.69).

Table 4
The results of analysis by various economic activity conditions

Fig. 3 shows the results of the analysis according to the severity of depressive symptoms. Economically active women had the lowest odds of having severe depressive symptoms compared to economically inactive women (mild: OR, 0.73; 95% CI, 0.57–0.92; moderate: OR, 0.61; 95% CI, 0.38–0.99; severe: OR, 0.24; 95% CI, 0.11–0.50).

Fig. 3
Results of the analysis according to the severity of depressive symptoms.
OR = odds ratio, CI = confidence interval, PHQ-9 = Patient Health Questionnaire-9.

*P < 0.05, **P < 0.01, ***P < 0.001.

DISCUSSION

This study used four years of data from KNHANES to examine the association between economic activity and depressive symptoms in a cross-sectional study among women with children. Among women with children, economic activity was associated with lower depressive symptoms. These findings are consistent with previous research that has found a link between overall employment and fewer mental health issues.28, 29, 30

In this study, economic activity was associated with lower depressive symptoms among women in their 40s and older. One possible explanation for this finding is that middle-aged women may experience a gradual decline in maternal responsibilities as their children grow older, allowing them to devote more time and resources to their personal lives. This finding is in line with previous research suggesting that the younger the children, the more difficult it is to juggle economic activities.31 Additionally, middle-aged women may be at higher risk of depression during this period as they may experience feelings of loss and emptiness due to their children’s independence.32, 33 Economic activity can positively impact women’s mental health by providing opportunities for them to reassess their life purpose and gain satisfaction and self-actualization from their work.

Interestingly, women’s economic activity was associated with lower depressive symptoms, regardless of the number of children they had. This is in contrast with prior research suggesting increased mental stress in mothers with more children.34 This discrepancy may indicate that economic activity plays a role in alleviating the mental stress experienced by working mothers during childcare. Engaging in economic activities expands the scope of a woman’s life, which might otherwise be focused solely on childrearing, to include various interactions and work experiences. This expansion could be a constructive way to resolve mental conflicts arising from childcare. Economic activity plays a crucial role in harmonizing childrearing and personal growth for women.

Furthermore, we found important implications from additional analysis of economic activity. In particular, the lower odds of depressive symptoms among women who were economically active as wage earners are consistent with previous research showing that greater job security reduces the prevalence of depression.35, 36 Stable income conditions guaranteed to wage workers, as opposed to self-employed individuals or unpaid family workers, provide women with a more predictable scenario for childrearing and household management. Consequently, this stability can offer more supportive circumstances for women to balance their roles both at work and at home.

The finding that women working fewer hours than the average legal working week were less likely to experience depressive symptoms suggests that work-life balance can have a significant impact on the mental health of women with children.37, 38, 39 When working women have control over their professional lives, household chores, childcare, and personal leisure activities, they escape feelings of helplessness and can organize their life patterns more effectively. The lower likelihood of depressive symptoms among both full-time and temporary workers suggests that beyond job security, working mother’s participation in the economy itself has an important impact on their mental health.

This study found that working mother’s economic participation is significantly related to their mental health. The sense of self-efficacy and security that women with children gain from economic participation can play a positive role in reducing depression. For women to maintain or re-enter economic activities after childbirth, it is essential to ensure stable environments within society, workplaces, and homes that allow them to sustain their lifestyles.40, 41 An environment that supports work-family balance can reduce work-family conflict and have a positive impact on the organization.42, 43 Such support systems provide women with children with the strength to autonomously sustain their lives despite significant life changes and should be considered a crucial factor in understanding the relationship between women’s economic activity and mental health.

Therefore, beyond the economic benefits of women’s participation in economic activities, there is a need to develop policies that enhance their overall quality of life and mental health. To achieve this, further analysis of the various factors that influence the causes and severity of depressive symptoms experienced by economically active women is required. Policy approaches based on these analyses are expected to contribute not only to the enhancement of women’s mental health, but also to societal stability.

This study had some limitations. First, this study had a cross-sectional design; while we found an association between economic inactivity and depressive symptoms, it is challenging to determine a causal relationship between these two factors. Therefore, we cannot conclude that economic inactivity among women with children causes depression. Second, potential covariates that could have impacted the study results may have not been accounted for. As a constraint of utilizing secondary data, we included the age of the youngest child as a variable that indirectly reflects the timing of childbirth. However, this is unlikely to fully capture the timing of a woman’s childbirth. Further research is needed using datasets with more precise timing of childbirth. Third, while the data used in this study are nationally representative, they are limited to specific years. Additional research is needed to comprehensively understand the relationship between women’s economic activity and depression. Fourth, the use of the PHQ-9 to measure depressive symptoms in women with children did not rule out the possibility of postpartum depression, thus possibly limiting our ability to fully understand the impact of economic activity on depression. Finally, this study did not include women who did not cohabit with their children. Including this group in future research could effectively represent women’s economic activities.

In conclusion, this study showed a significant association between economic activity and depressive symptoms in women with children. Economically active women were least likely to have severe depressive symptoms. The economic participation of these women extends beyond mere financial benefits, positively impacting overall quality of life and mental health. Therefore, it is necessary to provide environmental support and develop comprehensive policies to enable women to continue their economic activities after childbirth.

Notes

Disclosure:The authors have no potential conflicts of interest to disclose.

Author Contributions:

  • Conceptualization: Kim CR, Yun I.

  • Data curation: Kim CR, Kim SY.

  • Formal analysis: Kim CR, Yun I.

  • Methodology: Kim CR, Kim SY.

  • Software: Kim CR, Yun I.

  • Supervision: Park EC, Shin JY.

  • Validation: Kim CR, Shin JY.

  • Visualization: Kim CR, Park EC, Shin JY.

  • Writing - original draft: Kim CR.

  • Writing - review & editing: Kim CR, Yun I, Kim SY, Park EC, Shin JY.

ACKNOWLEDGMENTS

The authors thank their professors and colleagues from the Institute of Health Services Research, Yonsei University, for their comments on this manuscript; the editorial staff for English editing; and Medical Illustration & Design, as a member of the Medical Research Support Services of Yonsei University College of Medicine, providing excellent support with medical illustration.

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