Making Every Baby Count
9789241511223-eng
9789241511223-eng
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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