BIBLIOGRAPHIC INPUT SHEET TEMPORARY Patterns of mortality ...

Chapter VI. Neonatal Mortality
115
TABLE: 57. Neonatal Mortality' Due to Certain Perinatal Causes as Underlying Causes by Age of
Mother in Five Projects.
United States
Brazil
Chile El Salvador Mexico California
AgR of mother Bao Paulo project project Monterrey project
Total ..................... 1,948.1 1,858.7 1,731.1 1,516.7
Under 20 years ............ 2,807.6 1,914.7 2,522.2 2,113.5 1,286.5
20-24 years ............... 1,768.7 1,752.5 1,612.4 1,356.6 864.4
25-29 years ................ 1,706.4 1,781.2 1,368.5 1,290.8 856.0
30-34 years ................ 2,065.5 1,999.8 1,484.2 1,600.0 935.1
35 years and over .......... 2,297.0 2,068.8 1,811.0 1,768.5 1,025.1
aRates per 100,000 live births.
a combination of factors, including family
planning practices.
The analysis of neonatal mortality due
to immaturity as underlying or associated
cause by age of mother also reveals inter-
esting relationships. There was a constant
pattern in all five projects for which data on
maternal age was utilized (Table 58 and
Figure 54) rates for immaturity were consistently
higher for young mothers (under
20 years) than for the remaining age groups,
and they ranged from 3,682.9 to 1,456.0 per
100,000 live births in the Silo Paulo and
California projects, respectively. In all projects
the most favorable rates were those for
Fio. 54. Neonatal Mortality Due to Immaturity
in Five Projects.
4000 SAO PAULO CHILE PROJECT
947.7
products of mothers of intermediate age,
and significant increases were noticed for
neonates of mothers aged 35 years or over.
Table 59 and Figure 55 show the relationships
between mother's age and neonatal
mortality due to maternal conditions
(760-763) as underlying causes in five
projects. From these analyses it is apparent
that the risk of dying in the neonatal period
from these conditions is less for babies born
to mothers in the age group 20-29 years
than for those born to very young or older
mothers.
For the deaths due to other complications
of pregnancy and childbirth (769) a similar
relationship is found with respect to materas
Underlying or Associated Cause by Age of Mother
ELSALVADOR MONTERREY CALIFORNIA
PROJECT
PROJECT
3000
ac. 2000
. 1000
0A
A09 OF010111111 IN YEARS