Perinatal outcomes among different Asian-American subgroups.
OBJECTIVE
The objective of the study was to investigate the differences in perinatal outcomes between various Asian ethnic subgroups at a national level.


METHODS
This is a retrospective cohort study of all non-Hispanic Chinese, Japanese, Filipino, Asian Indian, Korean, Vietnamese, Samoan, Guamanian, and Hawaiian women whose deliveries were recorded by US birth certificates within the year 2003. Perinatal outcomes were compared between groups and potential confounders controlled for with multivariable logistic regression.


RESULTS
We found significant differences (P < .001) in the incidence of all perinatal outcomes of interest among the different Asian subgroups. These differences persisted after adjusting for potential confounders. The incidence of diabetes in pregnancy varied from 2.9% (Korean) to 5.7% (Filipina).


CONCLUSIONS
Our study demonstrates significant differences in preterm labor, primary cesarean delivery, pregnancy-associated hypertension, eclampsia, diabetes in pregnancy, low birthweight, macrosomia, and cephalopelvic disproportion among Asian subgroups at a national level, affirming the importance of examining these subgroups separately.
Wong
Luchin F
LF
Department of Obsetrics and Gynecology, Santa Clara Valley Medical Center, San Jose, CA, USA.
Caughey
Aaron B
AB
Nakagawa
Sanae
S
Kaimal
Anjali J
AJ
Tran
Susan H
SH
Cheng
Yvonne W
YW
D000328:Adult; D001213:Asian / Q000706:statistics & numerical data*; D052178:Cephalopelvic Disproportion / Q000208:ethnology; D002585:Cesarean Section / Q000706:statistics & numerical data; D004461:Eclampsia / Q000208:ethnology; D005260:Female; D005320:Fetal Macrosomia / Q000208:ethnology; D006801:Humans; D046110:Hypertension, Pregnancy-Induced / Q000208:ethnology; D007752:Obstetric Labor, Premature / Q000208:ethnology; D016017:Odds Ratio; D011247:Pregnancy; D011248:Pregnancy Complications / Q000208:ethnology*; D011256:Pregnancy Outcome / Q000208:ethnology*; D011254:Pregnancy in Diabetics / Q000208:ethnology; D012189:Retrospective Studies