Annals of Occupational and Environmental Medicine

Research Article

Effect of maternal job strain during pregnancy on infant neurodevelopment by gender at 6 and 12 months: Mothers and Children’s Environmental Health (MOCEH) study: Eunjeong Kim, HyeSook Park, Yun-Chul Hong, Mina Ha, Yangho Kim, Bo-Eun Lee, Eun-Hee Ha; Ann Occup Environ Med 2015;27:8. Published online March 20, 2015; DOI: https://doi.org/10.1186/s40557-015-0059-y

Objectives

Limited evidence is available regarding the association between prenatal job strain and infant neurodevelopment. Most studies used stress indicators other than job strain to explain the relationship between prenatal maternal stress and child development. The objective of this study was to investigate the association between maternal job strain during pregnancy and neurodevelopment in infancy.

Methods

Mothers and Children’s Environmental Health (MOCEH) study, an on-going prospective birth cohort study, has been conducted in South Korea since 2006. Job strain during pregnancy was measured using Korean version of Job Content Questionnaire (JCQ). Infant neurodevelopment was assessed using Korean Bayley Scale of Infant Development II (K-BSID-II) at 6 and 12 months of age. A total of 343 mother-child pairs that completed JCQ and K-BSID-II more than once were included. Mental Developmental Index (MDI) and Psychomotor Developmental Index (PDI) defined in the K-BSID-II were used as outcome variables.

Results

Compared to infants from mothers with low job strain, significant (p < 0.05) decreases in PDI were found in infants from mothers with active and passive job at 6 months of age. After stratification by infant sex, boys in the high strain group had a lower MDI score than boys in the low job strain group at 12 months. On the other hand, girls in the high strain and active groups had higher MDI scores than girls in the low job strain group at 12 months. PDI at 12 months also showed different results by sex. Boys in the high strain and passive job groups had lower PDI scores than boys in the low job strain group. However, such difference was not observed in girls.

Conclusions

The findings of this study suggest that prenatal job strain affects infant neurodevelopment in a gender-dependent manner.

Citations

Citations to this article as recorded by

Association between prenatal maternal anxiety and/or stress and offspring's cognitive functioning: A meta‐analysis
Garance Delagneau, E. Sabrina Twilhaar, Renee Testa, Sarit van Veen, Peter Anderson
Child Development.2023; 94(3): 779. CrossRef
Sex-differences in the effects of indoor air pollutants and household environment on preschool child cognitive development
Ming-Lun Zou, Hsiao-Chun Huang, Yi-Hua Chen, Chuen-Bin Jiang, Chih-Da Wu, Shih-Chun Candice Lung, Ling-Chu Chien, Yu-Chun Lo, Hsing Jasmine Chao
Science of The Total Environment.2023; 860: 160365. CrossRef
Low Job Control and Racial Disparities in Breastfeeding
Margaret D. Whitley, Annie Ro, BongKyoo Choi
Journal of Occupational & Environmental Medicine.2022; 64(8): e482. CrossRef
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Jorge Förster, Isabel López
Revista Médica Clínica Las Condes.2022; 33(4): 338. CrossRef
Maternal exposure to psychosocial job strain during pregnancy and behavioral problems in the 11-year-old children: a Danish cohort study
Camilla Sandal Sejbaek, Janni Niclasen, Jens Peter E. Bonde, Petter Kristensen, Ann Dyreborg Larsen, Vivi Schlünssen, Karin Sørig Hougaard
European Child & Adolescent Psychiatry.2021; 30(9): 1413. CrossRef
Pregnancy and workplace accidents: The impact of stereotype threat
Lindsey M. Lavaysse, Tahira M. Probst
Work & Stress.2021; 35(1): 93. CrossRef
Environmental pollutants affecting children's growth and development: Collective results from the MOCEH study, a multi-centric prospective birth cohort in Korea
Surabhi Shah, Kyoung Sook Jeong, Hyesook Park, Yun-Chul Hong, Yangho Kim, Byungmi Kim, Namsoo Chang, Suejin Kim, Yeni Kim, Bung-Nyun Kim, Hojang Kwon, Sanghyuk Bae, Hwan-Cheol Kim, Jong-Han Leem, Eun-Kyo Park, Hyunjoo Joo, Bohyun Park, Mina Ha, Eunhee Ha
Environment International.2020; 137: 105547. CrossRef

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Research Article

Relationship between Work Hours and Smoking Behaviors in Korean Male Wage Workers: Sung-Mi Jang, Eun-hee Ha, Hyesook Park, Eunjeong Kim, Kyunghee Jung-Choi; Ann Occup Environ Med 2013;25:35-35. Published online November 19, 2013; DOI: https://doi.org/10.1186/2052-4374-25-35

Abstract PDF PubReader ePub

Objectives

The purposes of this study are 1) to measure the prevalence of smoking according to weekly work hours by using data from the Korean Labor and Income Panel Study (KLIPS), and 2) to explain the cause of high smoking prevalence among those with short or long work hours by relative explanatory fraction.

Methods

Data from a total of 2,044 male subjects who responded to the questionnaire in the 10th year (2007) and 11th year (2008) of the Korean Labor and Income Panel Study were used for analysis. Current smoking, smoking cessation, continuous smoking, start of smoking, weekly work hours, occupational characteristics, sociodemographic and work-related factors, and health behavior-related variables were analyzed. Log-binomial regression analysis was used to study the relationship between weekly work hours and smoking behaviors in terms of the prevalence ratio.

Results

The 2008 age-adjusted smoking prevalence was 64.9% in the short work hours group, 54.7% in the reference work hours group, and 60.6% in the long work hours group. The smoking prevalence of the short work hours group was 1.39 times higher than that of the reference work hours group (95% confidence interval of 1.17-1.65), and this was explained by demographic variables and occupational characteristics. The smoking prevalence of the long work hours group was 1.11 times higher than that of the reference work hours group when the age was standardized (95% confidence interval of 1.03-1.19). This was explained by demographic variables. No independent effects of short or long work hours were found when the variables were adjusted.

Conclusion

Any intervention program to decrease the smoking prevalence in the short work hours group must take into account employment type, job satisfaction, and work-related factors.

Citations

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Frontiers in Public Health.2023;[Epub] CrossRef
Association between long working hours and cigarette smoking, leisure-time physical activity, and risky alcohol use: Findings from the Korea National Health and Nutrition Examination Survey (2014–2021)
Seong-Uk Baek, Jin-Ha Yoon
Preventive Medicine.2023; 175: 107691. CrossRef
Mediation Effect of the Coping Strategies on the Relation Between Stress and Sleep Quality
Sung Min Kim, Yoo Hyun Um, Tae Won Kim, Ho-Jun Seo, Jong-Hyun Jeong, Seung-Chul Hong
Psychiatry Investigation.2022; 19(7): 580. CrossRef
The relationship between working hours and lifestyle behaviors: Evidence from a population-based panel study in Korea
Dong-Wook Lee, Tae-Won Jang, Hyoung-Ryoul Kim, Mo-Yeol Kang
Journal of Occupational Health.2021;[Epub] CrossRef
Associations between the Smoking Status of Korean Employees and Their Work Schedule & Working Hours
Ju-Ok Son, In-Sun Kang, Hong-Jun Cho
Journal of the Korean Society for Research on Nicotine and Tobacco.2019; 10(2): 99. CrossRef
Health Disparities among Korean Workers by Enterprise Size: Using Korean Labor and Income Panel Study (17th)
Bohyun Park, Sook Ja Choi, Sukyong Seo
Korean Journal of Occupational Health Nursing.2016; 25(4): 277. CrossRef
Heavy smoking rate trends and related factors in Korean occupational groups: analysis of KNHANES 2007–2012 data
Bo-Guen Kim, Do-Dam Pang, Young-Jun Park, Jong-In Lee, Hyoung-Ryoul Kim, Jun-Pyo Myong, Tae-Won Jang
BMJ Open.2015; 5(11): e008229. CrossRef
The Effects of Job Characteristics on Smoking and Mediating Effects of Job Stress among Older Workers
Sungeun Lee
Korean Journal of Health Education and Promotion.2014; 31(3): 51. CrossRef

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