# Maternal Mortality Ratio and Causes

> Maternal mortality ratio and its causes for NEET-PG Obstetrics and Gynaecology, covering definitions, direct versus indirect deaths and leading causes.

- Canonical URL: https://prepelephant.com/topics/neet-pg/obstetrics-and-gynaecology/maternal-mortality-ratio-and-causes
- Exam / course: NEET-PG · Subject: Obstetrics and Gynaecology
- Publisher: PrepElephant (https://prepelephant.com) — Prepared and reviewed by the PrepElephant Academic Review Team
- First published: 2026-10-08
- Last updated: 2026-10-08
- Reference basis: Williams Obstetrics; Dutta's Textbook of Obstetrics; WHO Trends in Maternal Mortality report
- How to cite: "Maternal Mortality Ratio and Causes", PrepElephant, https://prepelephant.com/topics/neet-pg/obstetrics-and-gynaecology/maternal-mortality-ratio-and-causes

## Direct answer

The maternal mortality ratio is the number of maternal deaths per 100,000 live births in a defined period. A maternal death is a death during pregnancy or within 42 days of its termination, from any cause related to or aggravated by pregnancy or its management. Haemorrhage, hypertensive disorders, sepsis and unsafe abortion are the leading causes.

## What you must remember

- **Maternal death:** Death during pregnancy or within 42 days of termination, irrespective of duration and site, from causes related to or aggravated by pregnancy but not accidental or incidental causes.
- **Late maternal death:** Death from a pregnancy-related cause after 42 days but within one year of termination.
- **Direct death:** Results from obstetric complications, interventions, omissions or incorrect treatment, for example eclampsia or uterine rupture.
- **Indirect death:** Results from a pre-existing disease or one arising in pregnancy and aggravated by its physiology, for example cardiac disease or malaria.
- **Leading cause:** Postpartum haemorrhage is the commonest direct cause worldwide and in India, followed by hypertensive disorders and sepsis.
- **SDG target:** India's goal under SDG 3.1 is a maternal mortality ratio below 70 per 100,000 live births by 2030.

## How the definitions divide maternal deaths

Exam questions test the time window and the direct-indirect split, so the classification is set out in a table. The definitions matter because they decide how each death is recorded in national audits.

| Term | Time window | Mechanism | Example |
|---|---|---|---|
| Maternal death | Pregnancy to 42 days after | Pregnancy-related cause | Haemorrhage |
| Late maternal death | 42 days to one year | Pregnancy-related cause | Late sepsis |
| Direct maternal death | Pregnancy to 42 days after | Obstetric complication or intervention | Eclampsia |
| Indirect maternal death | Pregnancy to 42 days after | Pre-existing or aggravated disease | Cardiac disease |
| Pregnancy-associated death | Pregnancy to one year after | Any cause | Road accident |

A pregnancy-associated death from an unrelated cause, such as a road accident, is excluded from the maternal mortality ratio but still falls within the broader pregnancy-associated measure. The ratio is therefore narrower than the total number of deaths in women who were pregnant.

Audit committees use these definitions to classify each death, and a death can be reclassified after review. Accurate classification matters for planning interventions as well as for national statistics.

## Where the exam tries to catch you

Maternal mortality questions usually test the denominator, the time window and the classification of causes.

- **Trap:** Using women of reproductive age as the denominator — **Correct:** The ratio uses live births, which is why it is expressed per 100,000 live births.
- **Trap:** Counting a death 50 days after delivery as a maternal death — **Correct:** Deaths after 42 days are late maternal deaths, a separate category within one year.
- **Trap:** Classifying death from heart disease in pregnancy as a direct death — **Correct:** Pre-existing or aggravated medical disease is an indirect cause, unless the death arises from an obstetric complication.

## Frequently asked questions

### What is the difference between direct and indirect maternal death?
A direct maternal death results from obstetric complications of pregnancy, labour or the puerperium, or from interventions, omissions or incorrect treatment. An indirect maternal death results from a pre-existing disease or one arising during pregnancy and aggravated by its physiological effects. Cardiac disease and malaria are classic indirect causes.

### What time window defines a maternal death?
A maternal death is one occurring during pregnancy or within 42 days of termination of pregnancy, irrespective of the duration and site of the pregnancy. Deaths from 42 days up to one year are classed as late maternal deaths. Both windows are commonly tested in exams.

### Which causes of maternal death are most common in India?
Haemorrhage, particularly postpartum haemorrhage, is the commonest cause, followed by hypertensive disorders, sepsis and unsafe abortion. Indirect causes such as anaemia and cardiac disease also contribute significantly. Current national audit data should be checked for the latest proportions.

### What is the SDG target for maternal mortality in India?
India's target under SDG 3.1 is to bring the maternal mortality ratio below 70 per 100,000 live births by 2030. Progress is tracked through national surveys and the Sample Registration System. The target applies to the national ratio rather than to individual districts.