Postterm
pregnancy
is
defined
____________________
a
pregnancy
that
extends
to
42
0
/
7
weeks
____________________
beyond
.
The
reported
frequency
of
postterm
pregnancy
is
approximately
3
-
12%
.
However
,
the
____________________
biologic
variation
is
likely
less
since
the
____________________
frequent
cause
of
a
postterm
pregnancy
diagnosis
is
inaccurate
dating
.
Risk
____________________
for
actual
postterm
pregnancy
include
primiparity
,
____________________
postterm
pregnancy
,
male
gender
of
the
fetus
,
and
genetic
factors
.
Laursen
et
al
studied
____________________
and
dizygotic
twins
and
their
subsequent
development
____________________
prolonged
pregnancies
.
They
found
____________________
maternal
but
not
paternal
genetic
factors
____________________
the
rate
of
postterm
pregnancies
and
____________________
for
the
etiology
in
as
many
as
30%
of
____________________
pregnancies
.
A
more
recently
described
risk
factor
is
obesity
,
which
appears
to
increase
the
risk
of
____________________
progressin
g
