A new record linkage for assessing infant mortality rates in Ontario, Canada

Trends, influencing factors and prediction analysis of under-five and maternal mortality rates in China from 1991 to 2020

Introduction

Under-five mortality rate (U5MR) and maternal mortality rate (MMR) are important indicators for evaluating the quality of perinatal health and child health services in a country or region, and are research priorities for promoting maternal and infant safety and maternal and child health. This paper aimed to analysis and predict the trends of U5MR and MMR in China, to explore the impact of social health services and economic factors on U5MR and MMR, and to provide a basis for relevant departments to formulate relevant policies and measures.

Methods

The JoinPoint regression model was established to conduct time trend analysis and describe the trend of neonatal mortality rate (NMR), infant mortality rate (IMR), U5MR and MMR in China from 1991 to 2020. The linear mixed effect model was used to assess the fixed effects of maternal health care services and socioeconomic factors on U5MR and MMR were explored, with year as a random effect to minimize the effect of collinearity. Auto regressive integrated moving average models (ARIMA) were built to predict U5MR and MMR from 2021 to 2025.

Results

The NMR, IMR, U5MR and MMR from 1991 to 2020 in China among national, urban and rural areas showed continuous downward trends. The NMR, IMR, U5MR and MMR were significantly negatively correlated with gross domestic product (GDP), the proportion of the total health expenditure (THE) to GDP, system management rate, prenatal care rate, post-natal visit rate and hospital delivery rate. The predicted values of national U5MR from 2021 to 2025 were 7.3 ‰, 7.2 ‰, 7.1 ‰, 7.1 ‰ and 7.2 ‰ and the predicted values of national MMR were 13.8/100000, 12.1/100000, 10.6/100000, 9.6/100000 and 8.3/100000.

Conclusion

China has made great achievements in reducing the U5MR and MMR. It is necessary for achieving the goals of Healthy China 2030 by promoting the equalization of basic public health services and further optimizing the allocation of government health resources. China's experience in reducing U5MR and MMR can be used as a reference for developing countries to realize the SDGs.

Adverse perinatal outcomes among children in Switzerland: the impact of national origin and socio-economic group

OBJECTIVES

We examined the effect of the mother's origin and socio-economic characteristics on adverse perinatal outcomes in Switzerland.

METHODS

Births occurring from 2011 to 2017 were identified in the Swiss population register and merged with the Swiss civil register and the Register of the first pillar to obtain information on the migration origin and socio-economic level. Four indicators of adverse perinatal outcomes were defined.

RESULTS

Logistic regressions show that both the migration origin and the socio-economic level are measured by the parents' income, influence risk. Compared to the children of mothers born in Switzerland, those of mothers from EU/EFTA countries have a lower risk of infant mortality, low birth weight and extreme prematurity. The highest risk is observed for children born to mothers from the rest of the world. High levels of risk consistently characterize children with low-income parents (first decile).

CONCLUSIONS

Our results justify further investigations at the level of health services to better identify the factors causing differences in the prevalence of adverse outcomes and to take them into account in adapted health policies.