44-year temporal trends and causes of maternal mortality at the Lagos University Teaching Hospital, LUTH, Lagos, Nigeria (1976-2019)

Background

Nigeria has committed to global initiatives aimed at improving maternal and child health. Institutional audit of maternal mortality over a long period can provide useful information on the trends in maternal death and the impact of interventions.

Aim

To evaluate the trends in annual deliveries, maternal mortality ratio and causes of maternal death at a tertiary institution in Nigeria over a period of 44 years (1976-2019).

Materials and Methods

We conducted a temporal trend analysis of annual births, maternal deaths, maternal mortality ratio (MMR), and ranking of causes of maternal deaths at a Teaching Hospital, in Southwest Nigeria using available data from 1976 to 2019. Overall and segmental annual percent change (APC) of the observed trends were conducted using Joinpoint version 4.5.0.1 software.

Results

Over the 44-year study period, 1323 maternal deaths occurred at approximately 30 maternal deaths per annum. There was a four-fold increase in MMR from 881/100,000 total births in 1976 to 3389.8/100,000 total births in 2019, at an average increase of 3.1% per annum. (APC: 3.1%; P value < 0.001). The leading causes of maternal mortality were hypertension, sepsis, haemorrhage, and abortion, which together contributed to more than 70% of maternal deaths. All the leading causes of maternal deaths except abortion had constant ranking during the study period.

Conclusion

The four-fold increase in MMR at our hospital from 1976-2019 is worrying and may suggest that previous efforts at reducing maternal mortality in our institution did not lead to significant improvement toward the attainment of Sustainable Development Goal 3 (SDG3). The hospital increasingly managed complex cases especially the unbooked patients who were referred to the hospital as a last resort.

Trends in maternal mortality in India over two decades in nationally representative surveys

OBJECTIVE

To assess national and regional trends and causes-specific distribution of maternal mortality in India.

DESIGN

Nationally representative cross-sectional surveys.

SETTING

All of India from 1997 to 2020.

SAMPLE

About 10 000 maternal deaths among 4.3 million live births over two decades.

METHODS

We analysed trends in the maternal mortality ratio (MMR) from 1997 through 2020, estimated absolute maternal deaths and examined the causes of maternal death using nationally representative data sources. We partitioned female deaths (aged 15-49 years) and live birth totals, based on the 2001-2014 Million Death Study to United Nations (UN) demographic totals for the country.

MAIN OUTCOME MEASURES

Maternal mortality burden and distribution of causes.

RESULTS

The MMR declined in India by about 70% from 398/100 000 live births (95% CI 378-417) in 1997-98 to 99/100 000 (90-108) in 2020. About 1.30 million (95% CI 1.26-1.35 million) maternal deaths occurred between 1997 and 2020, with about 23 800 (95% CI 21 700-26 000) in 2020, with most occurring in poorer states (63%) and among women aged 20-29 years (58%). The MMRs for Assam (215), Uttar Pradesh/Uttarakhand (192) and Madhya Pradesh/Chhattisgarh (170) were highest, surpassing India's 2016-2018 estimate of 113 (95% CI 103-123). After adjustment for education and other variables, the risks of maternal death were highest in rural and tribal areas of north-eastern and northern states. The leading causes of maternal death were obstetric haemorrhage (47%; higher in poorer states), pregnancy-related infection (12%) and hypertensive disorders of pregnancy (7%).

CONCLUSIONS

India could achieve the UN 2030 MMR goals if the average rate of reduction is maintained. However, without further intervention, the poorer states will not.

TWEETABLE ABSTRACT

We estimated that 1.3 million Indian women died from maternal causes over the last two decades. Although maternal mortality rates have fallen by 70% overall, the poorer states lag behind.

Determinants and causes of maternal mortality in Iran based on ICD-MM: a systematic review

Background

No systematic review has explored the causes of and factors associated with maternal mortality in the context of Iran. This study reviewed determinants and causes of maternal mortalities during pregnancy, delivery and the puerperium using the International Classification of Diseases-Maternal Mortality (ICD-MM), introduced by the World Health Organization.

Methods

A systematic electronic search of all the studies that identified causes and/or determinants of maternal deaths in any part of Iran or in the whole country were included, without any restriction of time or language of studies. To identify the studies to include in this study, a combination of hand searching and bibliographies was also conducted. These sources and citations yielded a total of 653 articles; nevertheless, only 29 articles met the inclusion criteria, hence, required data were extracted, summarized, and grouped together from these papers and are reported in the tables.

Results

Amongst the 29 studies published between 2003 and 2017 in Iran, 24 studies were cross-sectional. Overall, 4633 deaths were reviewed, and 2655 (58%) of the cases included the data on the causes of death generally. According to the ICD-MM, a total of 69.9, 20.6, and 5.2% of the mortalities were due to direct, indirect and unspecified causes respectively and 4.3% of the causes were not clear in several studies. The leading direct and indirect causes of death were identified as hemorrhage (30.7%) and hypertensive disorders (17.1%) and circulatory system diseases (8.1%) respectively. Several factors including gravidity, type of delivery, socio-economic status of mothers, locations of birth, death and maternity care venues were found in the original studies as the most important determinant of maternal mortalities in Iran.

Conclusions

This study, provided an updated summary of evidences on the causes and determinants of maternal death in Iran, which is critically important for the development of interventions and reduction of the burden of maternal mortality and morbidities.