Low 5-minute Apgar score: a population-based register study of 1 million term births
(2001) In Obstetrics and Gynecology 98(1). p.65-70- Abstract
- OBJECTIVE: To determine the rate of 5-minute Apgar scores below 7 in term infants (at least 37 weeks) in Sweden during 1988-1997, evaluate the influence of obstetric risk factors on low 5-minute Apgar scores, and to study the infant prognosis regarding infant mortality, neonatal neurologic morbidity, and outcome. METHODS: Data were collected from the Swedish Medical Birth Registry 1988-1997, and the National Hospital Discharge Registry. Odds ratios (OR) and risk ratios were calculated. RESULTS: Among 1,028,705 term newborns, 7787 (0.76%) had 5-minute Apgar scores below 7. The annual rate of low Apgar scores decreased from 0.77% in 1988 to 0.63% in 1992, but thereafter increased to 0.82% in 1998. The highest OR was found for vaginal breech... (More)
- OBJECTIVE: To determine the rate of 5-minute Apgar scores below 7 in term infants (at least 37 weeks) in Sweden during 1988-1997, evaluate the influence of obstetric risk factors on low 5-minute Apgar scores, and to study the infant prognosis regarding infant mortality, neonatal neurologic morbidity, and outcome. METHODS: Data were collected from the Swedish Medical Birth Registry 1988-1997, and the National Hospital Discharge Registry. Odds ratios (OR) and risk ratios were calculated. RESULTS: Among 1,028,705 term newborns, 7787 (0.76%) had 5-minute Apgar scores below 7. The annual rate of low Apgar scores decreased from 0.77% in 1988 to 0.63% in 1992, but thereafter increased to 0.82% in 1998. The highest OR was found for vaginal breech delivery (OR 6.7), birth weights above 5 kg (OR 6.3), and second born twins (OR 4.1). Primiparity, maternal age, smoking, post-date pregnancy, epidural analgesia, male infant gender, and being born at night, were also significant risk factors for Apgar below 7 at 5 minutes. The infant mortality rate was 48 per 1000 (OR 14.4), and the ORs were 31.4 for a diagnosis with cerebral palsy, 7.9 for epilepsy, and 9.5 for mental retardation. CONCLUSION: Several obstetric risk factors are associated with low 5-minute Apgar score in term infants. Mortality and the risk of severe neurologic morbidity are increased in these infants. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1120624
- author
- Thorngren-Jerneck, Kristina LU and Herbst, Andreas LU
- organization
- publishing date
- 2001
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Obstetrics and Gynecology
- volume
- 98
- issue
- 1
- pages
- 65 - 70
- publisher
- Lippincott Williams & Wilkins
- external identifiers
-
- pmid:11430958
- scopus:0034935475
- ISSN
- 1873-233X
- language
- English
- LU publication?
- yes
- id
- 17141747-6e56-4f5c-b082-1ee654ab6fba (old id 1120624)
- alternative location
- http://www.greenjournal.org/cgi/content/full/98/1/65
- date added to LUP
- 2016-04-01 16:10:37
- date last changed
- 2022-03-30 05:54:18
@article{17141747-6e56-4f5c-b082-1ee654ab6fba, abstract = {{OBJECTIVE: To determine the rate of 5-minute Apgar scores below 7 in term infants (at least 37 weeks) in Sweden during 1988-1997, evaluate the influence of obstetric risk factors on low 5-minute Apgar scores, and to study the infant prognosis regarding infant mortality, neonatal neurologic morbidity, and outcome. METHODS: Data were collected from the Swedish Medical Birth Registry 1988-1997, and the National Hospital Discharge Registry. Odds ratios (OR) and risk ratios were calculated. RESULTS: Among 1,028,705 term newborns, 7787 (0.76%) had 5-minute Apgar scores below 7. The annual rate of low Apgar scores decreased from 0.77% in 1988 to 0.63% in 1992, but thereafter increased to 0.82% in 1998. The highest OR was found for vaginal breech delivery (OR 6.7), birth weights above 5 kg (OR 6.3), and second born twins (OR 4.1). Primiparity, maternal age, smoking, post-date pregnancy, epidural analgesia, male infant gender, and being born at night, were also significant risk factors for Apgar below 7 at 5 minutes. The infant mortality rate was 48 per 1000 (OR 14.4), and the ORs were 31.4 for a diagnosis with cerebral palsy, 7.9 for epilepsy, and 9.5 for mental retardation. CONCLUSION: Several obstetric risk factors are associated with low 5-minute Apgar score in term infants. Mortality and the risk of severe neurologic morbidity are increased in these infants.}}, author = {{Thorngren-Jerneck, Kristina and Herbst, Andreas}}, issn = {{1873-233X}}, language = {{eng}}, number = {{1}}, pages = {{65--70}}, publisher = {{Lippincott Williams & Wilkins}}, series = {{Obstetrics and Gynecology}}, title = {{Low 5-minute Apgar score: a population-based register study of 1 million term births}}, url = {{http://www.greenjournal.org/cgi/content/full/98/1/65}}, volume = {{98}}, year = {{2001}}, }