We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |

Postconceptional Age of Surviving Preterm Low-Birth-Weight Infants at Hospital Discharge

James S. Rawlings, MD; John S. Scott, MD
Arch Pediatr Adolesc Med. 1996;150(3):260-262. doi:10.1001/archpedi.1996.02170280030005.
Text Size: A A A
Published online

Background:  Prediction of the duration of hospital stay of preterm, low-birth-weight infants currently requires inconvenient referral to published tables.

Objective:  To determine whether postconceptional age (gestational age plus chronologic age) could serve as a useful clinical marker for the more convenient prediction of individual durations of hospital stay.

Design:  Case series.

Setting:  Regional military teaching medical center with level III obstetric and neonatal services.

Patients:  Nine hundred sixty surviving preterm, low-birth-weight infants in the neonatal intensive care unit.

Main Outcome Measure:  The strength of the relationship of birth weight to postconceptional age at the time of discharge was tested by analysis of variance.

Results:  Postconceptional age at the time of hospital discharge varied in a highly predictable manner with birth weight (P<.001). The mean and variance were greatest for infants with very low birth weights and decreased with increasing birth weight. Postconceptional age at the time of discharge reached a minimum of 36.0±1.4 weeks (mean±SD) for infants with birth weights of 1750 to 2240 g.

Conclusions:  Most preterm, low-birth-weight infants meet current eligibility criteria for hospital discharge at a postconceptional age of 35 to 37 weeks. This level of maturity is sufficiently predictive to serve as a convenient, easy-to-remember clinical marker for expected durations of hospital stay. For infants with birth weights of less than 1000 g, discharge at a postconceptional age of 37 to 42 weeks is a more realistic expectation.(Arch Pediatr Adolesc Med. 1996;150:260-262)


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal





Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
Submit a Comment


Some tools below are only available to our subscribers or users with an online account.

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal

Related Content

Customize your page view by dragging & repositioning the boxes below.