It is known that substance abuse during pregnancy is associated with increa
sed risk of adverse birth outcomes. The aim of this study was to determine
the use of alcohol, cigarettes, betel quid, and drugs among pregnant aborig
inal women and to assess the risk of adverse effects of betel quid use on b
irth outcomes in eastern Taiwan. Of a total of 229 women recruited into thi
s study, 32 women with adverse birth outcomes constituted the case group. A
nalyses revealed that adverse birth outcomes were associated with maternal
betel quid chewing and maternal age. After adjusting for maternal age, the
risk of adverse birth outcome was five times higher among betel quid chewin
g women as compared to substance nonusers. Based on this finding, it is sug
gested health education, especially when concerned with the harmful effects
of substance abuse, which includes betel quid use during pregnancy, should
be stressed in concert with routine prenatal care.