TY - JOUR
T1 - Birth weight references for twins
AU - Min, Sung Joon
AU - Luke, Barbara
AU - Gillespie, Brenda
AU - Min, Linda
AU - Newman, Roger B.
AU - Mauldin, Jill G.
AU - Witter, Frank R.
AU - Salman, Fawwaz A.
AU - O'Sullivan, Mary Jo
PY - 2000
Y1 - 2000
N2 - OBJECTIVE: We sought to formulate fetal and birth weight references for twins from longitudinal data. STUDY DESIGN: This historic cohort study was based on 1831 pregnancies of twins born alive at ≥28 weeks' gestation from Baltimore, Maryland; Miami, Florida; Charleston, South Carolina; and Ann Arbor, Michigan. RESULTS: When we compared singletons and twins, the percentiles of twins fell substantially below the 10th percentile of singletons by 28 weeks' gestation, below the 50th percentile by 30 weeks' gestation, and below the 90th percentile by 34 weeks' gestation. The difference at the 50th percentile was 147 g (10%) at 30 weeks' gestation, 242 g (14%) at 32 weeks' gestation, 347 g (17%) at 34 weeks' gestation, 450 g (19%) at 36 weeks' gestation, 579 g (22%) at 38 weeks' gestation, and 772 g (27%) at 40 weeks' gestation. CONCLUSION: This new reference demonstrates that, although the overall pattern of fetal growth is slower for twins versus singletons from about 30 weeks' gestation, well-grown twins and singletons do not differ as much as previously believed.
AB - OBJECTIVE: We sought to formulate fetal and birth weight references for twins from longitudinal data. STUDY DESIGN: This historic cohort study was based on 1831 pregnancies of twins born alive at ≥28 weeks' gestation from Baltimore, Maryland; Miami, Florida; Charleston, South Carolina; and Ann Arbor, Michigan. RESULTS: When we compared singletons and twins, the percentiles of twins fell substantially below the 10th percentile of singletons by 28 weeks' gestation, below the 50th percentile by 30 weeks' gestation, and below the 90th percentile by 34 weeks' gestation. The difference at the 50th percentile was 147 g (10%) at 30 weeks' gestation, 242 g (14%) at 32 weeks' gestation, 347 g (17%) at 34 weeks' gestation, 450 g (19%) at 36 weeks' gestation, 579 g (22%) at 38 weeks' gestation, and 772 g (27%) at 40 weeks' gestation. CONCLUSION: This new reference demonstrates that, although the overall pattern of fetal growth is slower for twins versus singletons from about 30 weeks' gestation, well-grown twins and singletons do not differ as much as previously believed.
KW - Intrauterine growth of twins
KW - Twin birth weight
UR - http://www.scopus.com/inward/record.url?scp=0034120623&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034120623&partnerID=8YFLogxK
U2 - 10.1067/mob.2000.104923
DO - 10.1067/mob.2000.104923
M3 - Article
C2 - 10819867
AN - SCOPUS:0034120623
SN - 0002-9378
VL - 182
SP - 1250
EP - 1257
JO - American journal of obstetrics and gynecology
JF - American journal of obstetrics and gynecology
IS - 5
ER -