Complicating Conditions Listed for 94.1 Percent of 4.2 Million U.S. Births in 2008

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By Jill Arnold

 

AHRQ’s Healthcare Cost and Utilization Project (HCUP) conducted a Nationwide Inpatient Sample (NIS) on pregnancy and childbirth hospitalizations with complicating conditions in 2008. “Complicating conditions” in the document include all ICD-9-CM diagnosis codes under “Complications of Pregnancy, Childbirth, and the Puerperium.”


From the brief:

There were 4,673,700 pregnancy and delivery hospital stays recorded in these hospital discharge data among females ages 15 to 44 years in 2008. As shown in table 1, there were 473,700 non-delivery maternal hospital stays with complicating conditions as a principal or secondary diagnosis. Among the 4.2 million deliveries in 2008, the vast majority (94.1 percent) listed some type of complicating condition. [Emphasis mine]

 

Summary of complicating conditions:

Non-delivery stays
As shown in table 2, among non-delivery maternal stays, the following complicating conditions occurred at a rate of 100 or more for every 1,000 hospital stays: 

  • early or threatened labor (208 per 1,000 stays)
  • infections of genitourinary tract (132 per 1,000 stays)
  • hypertension including eclampsia and pre-eclampsia (113 per 1,000 stays)


The following complicating conditions occurred at a rate of 50-99 for every 1,000 hospital stays: 

  • anemia (99 per 1,000 stays)
  • diabetes or abnormal glucose tolerance (82 per 1,000 stays)
  • hyperemesis gravidarum (vomiting) (63 per 1,000 stays)
  • poor fetal growth (60 per 1,000 stays)
  • ectopic pregnancy (56 per 1,000 stays)
  • advanced maternal age (56 per 1,000 stays)
  • hemorrhage (52 per 1,000 stays)


Delivery stays
Among maternal stays with delivery, the following common complicating conditions occurred at a rate of 100 or more for every 1,000 deliveries: 

  • umbilical cord complications (233 per 1,000 stays)
  • perineal lacerations (158 1st degree and 168 2nd degree lacerations per 1,000 stays)
  • previous cesarean section (167 per 1,000 stays)
  • abnormality in fetal heart rate or rhythm (148 per 1,000 stays)
  • prolonged pregnancy (121 per 1,000 stays)
  • polyhydramnios and problems of the amniotic cavity (117 per 1,000 stays)
  • advanced maternal age (117 per 1,000 stays)
  • anemia during pregnancy (112 per 1,000 stays)
  • fetal distress and abnormal forces of labor (111 per 1,000 stays)


The following complicating conditions occurred at a rate of 50-99 for every 1,000 deliveries: 

  • hypertension including eclampsia and pre-eclampsia (94 per 1,000 stays)
  • early or threatened labor (81 per 1,000 stays)
  • malposition, malpresentation (80 per 1,000 stays)
  • diabetes or abnormal glucose tolerance (68 per 1,000 stays)
  • poor fetal growth (54 per 1,000 stays)
  • fetopelvic disproportion (54 per 1,000 stays)

 

 

 Read the brief: http://www.hcup-us.ahrq.gov/reports/statbriefs/sb113.jsp

 

 

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