Adverse Pregnancy Outcomes and International Immigration Status: A Systematic Review and Meta-analysis

Behboudi‐Gandevani, Samira; Panahi, Mohammad Hossein; Mardani, Abbas; Paal, Piret; Prinds, Christina; Vaismoradi, Mojtaba

doi:10.5334/aogh.3591

Cited by 12 publications

(6 citation statements)

References 162 publications

(219 reference statements)

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“…Compared with mothers from other nationalities, Japanese women had higher risk of delivering infants of low birth weight. This result was contrary to previous reports that foreign-born or immigrant women tended have adverse birth outcomes in other countries [5,6,35]. The estimated worldwide prevalence of low birth weight is higher, compared with the rate in Japan [3], and non-Japanese mothers have some difficulties in childbirth in Japan.…”

Section: Discussioncontrasting

confidence: 90%

Association of maternal nationality with preterm birth and low birth weight rates: analysis of nationwide data in Japan from 2016 to 2020

Okui

Sato

Morokuma

et al. 2023

matern health, neonatol and perinatol

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Background The rate of low birth weight or preterm birth is known to vary according to the birth place of mothers. However, in Japan, studies that investigated the association between maternal nationalities and adverse birth outcomes are few. In this study, we investigated the association between maternal nationalities and adverse birth outcomes. Methods We obtained live birth data from the Vital Statistics 2016–2020 of the Ministry of Health, Labour, and Welfare. We used data on maternal age, sex, parity, gestational age, birth weight, number of fetuses, household occupation, paternal nationality, and maternal nationality for each infant. We compared the rates of preterm birth and low birth weight at term among mothers whose nationalities were Japan, Korea, China, Philippines, Brazil, and other countries. Log binomial regression model was used to investigate the association between maternal nationality and the two birth outcomes using the other infants’ characteristics as covariates. Results In the analysis, data on 4,290,917 singleton births were used. Mothers from Japan, Korea, China, the Philippines, Brazil, and other nations had preterm birth rates of 4.61%, 4.16%, 3.97%, 7.43%, 7.69%, and 5.61%, respectively. The low birth weight rate among Japanese mothers was 5.36% and was the highest among the maternal nationalities. Regression analysis showed that the relative risk for preterm birth among Filipino, Brazilian, and mothers from other countries (1.520, 1.329, and 1.222, respectively) was statistically significantly higher compared with Japanese mothers. In contrast, the relative risk for Korean and Chinese mothers (0.870 and 0.899, respectively) was statistically significantly lower compared with Japanese mothers. Mothers from Korea, China, the Philippines, Brazil, and other nations had a relative risk for low birth weight that was statistically significantly lower than that of Japanese mothers (0.664, 0.447, 0.867, 0.692, and 0.887, respectively). Conclusions Support for mothers from the Philippines, Brazil, and other countries are necessary to prevent preterm birth. A future study is necessary to investigate the differences in characteristics among mothers of different nationalities in order to uncover the reason for the high risk for low birth weight among Japanese mothers.

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Section: Discussioncontrasting

confidence: 90%

Association of maternal nationality with preterm birth and low birth weight rates: analysis of nationwide data in Japan from 2016 to 2020

Okui

Sato

Morokuma

et al. 2023

matern health, neonatol and perinatol

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“…Immigrants may have a different health trajectory and pregnancy outcomes than nonimmigrants . Accordingly, an additional analysis was completed for the corresponding main model of any upward income mobility and SMM-M or SNM-M.…”

Section: Methodsmentioning

confidence: 99%

“…Immigrants may have a different health trajectory and pregnancy outcomes than nonimmigrants. 22 , 23 , 44 , 45 Accordingly, an additional analysis was completed for the corresponding main model of any upward income mobility and SMM-M or SNM-M. Therein, the interaction term of “neighborhood income mobility between births and immigrant status” was added to each respective model.…”

Section: Methodsmentioning

confidence: 99%

Neighborhood Income Mobility and Risk of Neonatal and Maternal Morbidity

et al. 2023

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ImportanceResiding in a low-income neighborhood is generally associated with worse pregnancy outcomes. It is not known if moving from a low- to higher-income area between 2 pregnancies alters the risk of adverse birth outcomes in the subsequent birth compared with women who remain in low-income areas for both births.ObjectiveTo compare the risk of adverse maternal and newborn outcomes among women who achieved upward area-level income mobility vs those who did not.Design, Setting, and ParticipantsThis population-based cohort study was completed in Ontario, Canada, from 2002 to 2019, where there is universal health care. Included were all nulliparous women with a first-time singleton birth at 20 to 42 weeks’ gestation, each residing in a low-income urban neighborhood at the time of the first birth. All women were then assessed at their second birth. Statistical analysis was conducted from August 2022 to April 2023.ExposureMovement from a lowest-income quintile (Q1) neighborhood to any higher-income quintile neighborhood (Q2-Q5) between the first and second birth.Main Outcomes and MeasuresThe maternal outcome was severe maternal morbidity or mortality (SMM-M) at the second birth hospitalization or up to 42 days post partum. The primary perinatal outcome was severe neonatal morbidity or mortality (SNM-M) within 27 days of the second birth. Relative risks (aRR) and absolute risk differences (aARD) were estimated by adjusting for maternal and infant characteristics.ResultsA total of 42 208 (44.1%) women (mean [SD] age at second birth, 30.0 [5.2] years) experienced upward area-level income mobility, and 53 409 (55.9%) women (age at second birth, 29.0 [5.4] years) remained in income Q1 between births. Relative to women who remained in income Q1 between births, those with upward mobility had a lower associated risk of SMM-M (12.0 vs 13.3 per 1000 births), with an aRR of 0.86 (95% CI, 0.78 to 0.93) and aARD of −2.09 per 1000 (95% CI, −3.1 to −0.9 per 1000 ). Likewise, their newborns experienced lower respective rates of SNM-M (48.0 vs 50.9 per 1000 live births), with an aRR of 0.91 (95% CI, 0.87 to 0.95) and aARD of −4.7 per 1000 (95% CI, −6.8 to −2.6 per 1000).Conclusions and RelevanceIn this cohort study of nulliparous women living in low-income areas, those who moved to a higher-income area between births experienced less morbidity and death in their second pregnancy, as did their newborns, compared with those who remained in low-income areas between births. Research is needed to determine whether financial incentives or enhancement of neighborhood factors can reduce adverse maternal and perinatal outcomes.

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“…(19,20) Access to professional translators helped ensure accurate and confidential information was being communicated between service users and healthcare professionals, although issues of concern included availability of translators,(1) their ability to communicate in the same dialect, (6) and their age and gender appropriateness. (1,18) Appointments facilitated by translators took longer, (28,36) but this was not discussed as having been accounted for with longer appointment times. (34,36) Family members (particularly male partners) often acted as a translator, which was a practice supported by participants.…”

Section: Fig 1 Prisma Flow Chartmentioning

confidence: 99%

Refugee and asylum seekers’ engagement with health services during pregnancy: A rapid review

Green,

Herbert,

Pitts

et al. 2023

Preprint

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The objective of this work was to summarise and describe antenatal care experiences of people from refugee and asylum seeker backgrounds living in high-income countries with universal healthcare. Academic articles from six databases and grey literature from selected government websites were systematically searched for English-language articles published 2012-2022. Articles describing perinatal care of people from refugee and asylum seeker backgrounds from the service user and service providers perspective were eligible for inclusion. A thematic synthesis of included articles was undertaken with study quality assessed using Critical Appraisal Sills Program tools.Of the 37 included articles, there were seven qualitative, 15 quantitative, two mixed-methods studies and 13 reviews. Articles were conducted in Australia (57%), Canada (11%), and the remainder from Europe. Three recurring themes of communication, sociocultural and health system factors were described as barriers or challenges to antenatal care experiences but also presented opportunities for improving care. Many issues around antenatal care experiences for people from refugee and asylum seeker backgrounds remain the same as those identified over ten years ago. To improve antenatal care for people from refugee and asylum seeker backgrounds, health services could implement a range of strategies that support communication, sociocultural experiences and system-related issues.

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Adverse Pregnancy Outcomes and International Immigration Status: A Systematic Review and Meta-analysis

Cited by 12 publications

References 162 publications

Association of maternal nationality with preterm birth and low birth weight rates: analysis of nationwide data in Japan from 2016 to 2020

Association of maternal nationality with preterm birth and low birth weight rates: analysis of nationwide data in Japan from 2016 to 2020

Neighborhood Income Mobility and Risk of Neonatal and Maternal Morbidity

Refugee and asylum seekers’ engagement with health services during pregnancy: A rapid review

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