The systematic assessment of the health status of children enables
health professionals to determine the impact of past and current
health intervention and prevention programs. Program planners and
policy-makers identify trends by examining and comparing information
from one data collection year to the next. Although indicators are
often assessed on an annual basis, some surveillance systems may
only collect data every 2, 3, or 5 years.
In this section, mortality, disease, injury, and health behavior
indicators are presented by age groups. The health status indicators
in this section are based on vital statistics and national surveys.
Population-based samples here are designed to yield data that are
representative of the maternal and child population that are affected
by, or in need of, specific health services: