| Year | Low Birthweight Mortality Rate |
Neonatal Mortality Rate |
Postneonatal Mortality Rate |
Infant Mortality Rate |
|---|---|---|---|---|
| 1989-1991 | ||||
| 1989-1991 | ||||
| 1989-1991 |
| Notes: |
|
| Infant deaths: | Deaths occurring to individuals less than 1 year of age. |
| Infant mortality rate |
Number of resident infant deaths divided by total resident live births x 1,000. |
| Neontal mortality rate |
Number of infant deaths that occurred within the first 27 days of life per 1,000 live births. |
| Postneontal mortality rate |
Number of resident postneonatal deaths divided by total resident live births x 1,000. |
| Low Birthweight mortality rate |
Number of infant deaths with irthweight less than 2500 grams divided by total resident live births x 1,000. |
| ± | Adding and subtracting the number shown after the ± symbol from the rate creates a confidence interval indicating that the true rate lies between the lower and upper bounds of this interval with 95 % statistical confidence. The true rate lies between the lower and upper bounds of the interval with 95% statistical confidence. |
| * | A rate is not calculated when there are fewer than 6 events, because the width of the confidence interval would negate any usefulness for comparative purposes. |
| - | A dash indicates that there were either no births or no infant deaths from this category. |
| Source: | 1989 - 2001 Michigan Resident Death Files and Michigan Resident Birth Files, Epidemiology Services Division, Vital Records and Health Data Development Section, Michigan Department of Community Health |
Date Created: 9/26/2002