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Making Every Baby Count

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TABLE 2.1. Mortality rate definitions and data sources<br />

Indicator Numerator Denominator* Data sources<br />

Stillbirth rate<br />

For international comparison: Number<br />

of babies born per year with no signs<br />

of life weighing ≥ 1000 g and after 28<br />

completed weeks of gestation (ICD-10<br />

also recommends including the number<br />

of deaths in fetuses born after ≥ 22<br />

weeks of gestation or weighing ≥ 500 g)<br />

1000 total (live and<br />

stillborn) births<br />

• CRVS<br />

• Household surveys<br />

• HMIS and audit systems<br />

(often facility-based<br />

deaths only)<br />

• Estimation models<br />

Neonatal<br />

mortality rate<br />

Number of live born infants per year<br />

dying before 28 completed days of age<br />

1000 live births<br />

Perinatal<br />

mortality rate<br />

Definitions vary:<br />

• Number of deaths in fetuses born<br />

weighing ≥ 1000 g and after 28<br />

completed weeks of gestation, plus<br />

neonatal deaths through the first 7<br />

completed days after birth<br />

• Number of deaths in fetuses born<br />

weighing ≥ 500 g and after 22<br />

completed weeks of gestation, plus<br />

neonatal deaths through the first 7<br />

completed days after birth<br />

• Some definitions include all neonatal<br />

deaths up to 28 days<br />

1000 total (live and<br />

stillborn) births<br />

ICD-10: International Classification of Diseases version 10; CRVS: civil registration and vital statistics; HMIS: health management<br />

information system.<br />

* The time period is normally calculated per year.<br />

Source: Moxon et al., 2015 (9).<br />

Definitions also vary for the perinatal mortality rate. Perinatal mortality refers to the number<br />

of stillbirths and deaths within the first week of life (early neonatal mortality), but the<br />

stillbirth definition varies to include stillbirths of either greater than 22 completed weeks or<br />

greater than 28 completed weeks of gestation. Some definitions of perinatal mortality also<br />

include the late neonatal period, or even up to 6 weeks (29).<br />

2.3 Medical causes of death<br />

It is important to emphasize the difference between audit data collected for review meetings<br />

and analysis, and routinely collected data that fit standard, official definitions. The<br />

official definitions – e.g. those that are used on death certificates – should not be changed<br />

for the purposes of audit. Rather, the flexibility in definitions should only be used for the<br />

purposes of death review, to generate the most effective learning cases which link to<br />

solutions and improvement of services. Annex 1 provides a death case review form with<br />

suggested programmatically relevant categories of causes of death for stillbirths and neonatal<br />

deaths.<br />

20 MAKING EVERY BABY COUNT: AUDIT AND REVIEW OF STILLBIRTHS AND NEONATAL DEATHS

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