1. Obstetric Related Rate
Chapter 8
Obstetric Related Rate

2. Pregnancy Terms Delivery Not delivered
Act of giving birth to a live or dead fetus, including the placenta, single or multiple infants
Not delivered
Admitted and discharged without giving birth

3. Pregnancy Terms Partum Antepartum Childbirth
Period before giving birth
Postpartum:
Period after giving birth

4. Pregnancy Terms Termination Induced termination
Expulsion or extraction of a dead fetus
Products of conception
Birth of liveborn or stillborn infant
Induced termination
Interruption of pregnancy

5. Maternal Terms Maternal/obstetrical death Direct maternal death
Death of mother while pregnant or within 42 days of termination of pregnancy
Direct maternal death
Related to pregnancy or delivery
Indirect maternal death
Not related to pregnancy or delivery

6. Cesarean Section Terms
Cesarean section rate
Deliveries performed by C-Section compared to vaginal deliveries
Vaginal birth after cesarean section (VBAC) rate
Vaginal delivery with previous delivery via c-section

7. Cesarean Section Formulas
VBAC
Total vaginal deliveries in those with previous C-section
Divided by total number of previously delivered via C-section

8. Cesarean Section Formulas
C-Section
Total number of C-sections performed for the period
Divided by total number of deliveries for the period

9. Newborn/Fetal Terms Newborn–show signs of life at birth
Born in the hospital
Included in newborn/bassinet statistics

10. Newborn/Fetal Terms
Fetal death (abortion, aborted fetus, stillborn)–no signs of life at birth
Not included in newborn/bassinet statistics
Statistically compiled separate

11. Newborn/Fetus Terms Neonate Infant Liveborn up to 28 days of age
Liveborn up to one year of age

12. Newborn/Fetus Terms Perinatal Postnatal
Period surrounding birth for both liveborn, stillborn, and neonates
Postnatal
Period from 28 days of age to 1 year of age

13. Newborn/Fetus Terms Hospital fetal death
No signs of life prior to complete expulsion/extraction
Not considered a hospital inpatient
Does not have a medical record
Not included in newborn statistics

14. Fetus Death Terms ACOG and ICD-9-CM classifications Early Intermediate
500 grams or less, before 22 weeks gestation
Intermediate
501 – 1000 grams
Late
1001 grams or more, after 22 weeks gestation

15. OB Mortality Rate
Ratio of deaths due to pregnancy during a specified period to the number of OB discharges
Rate is low
Computed to three decimal places

16. OB Mortality Rate Formula:
Total direct OB deaths for the period  100 divided by total OB discharges for the period (including deaths)

17. Newborn Death Rate Formula–NB death rate: Numerator Denominator
Total number of NB deaths for the period  100
Denominator
Total number of NB discharges for the period (including deaths)

18. Infant Death Rate Formula: Infant death rate (up to one year):
Numerator
Total number of Infant deaths for the period  100
Denominator
Total number of Infant discharges for the period (including deaths)

19. Neonatal Death Rate
Formula: Neonate death rate (up to 28 days of age):
Numerator
Total number of neonatal deaths for the period  100
Denominator
Total number of neonatal discharges for the period (including deaths)

20. Fetal Death Rate Includes intermediate and late fetal deaths
Exclude fetus
Less than 20 weeks gestation
500 grams or less

21. Fetal Death Rate Formula: Fetal Death Rate Numerator Denominator
Total number of intermediate and late fetal deaths for the period  100
Denominator
Total number of births for the period
Including live births intermediate and late fetal deaths