1B. NATALITY: MATERNAL CHARACTERISTICS ANDNEWBORN?SHEALTH
Since the first year these data
were collected, three of the eight
specific abnormal conditions listed
on the birth certificate have been
reported most frequently:
assisted
ventilation less than 30 minutes
,
assisted ventilation of 30 minutes
or longer
, and
hyaline membrane
disease/respiratory
distress
syndrome
(RDS)
.
Hyaline
membrane disease/RDS
is a
common cause of morbidity in
preterm infants. The rates of
abnormal conditions are the
highest among very preterm (less
than 32 weeks of gestation) and
moderately preterm (32-36 weeks
of gestation;
Figure1B-27
).
Figure1B-27
Abnormal Conditions of theNewbornbyGestational Age, Arizona, 2013
Congenital
anomalies
(birth
defects) are the leading cause of
infant death in Arizona and
nationally. They are also the
cause of physical defects and
metabolic diseases.
For various anomalies, rates vary
widely with maternal age. For
example, in 2013 as in prior years,
the rate of Down?s Syndrome, the
most frequently recognized cause
of mental retardation, was
substantially higher for births to
mothers aged 35 years and over
(
Figure 1B-28, Table 1B-34
).
The incidence rate of 103.2 cases
of Down?s Syndrome per 100,000
births to women 35 years or older
was 4.9 times greater than the
incidence rate of 20.9 for women
aged 24 years or younger.
Figure1B-28
The Incidenceof Downs SyndromebyMother?sAgeGroup, Arizona, 2013
Arizona Health Status and Vital Statistics 2013
31
