Age of WomanFemale PopulationLive BirthsPregnancies
NumberRateNumberRate
Number & Rate of Live Births and Estimated Pregnancies by Age of Woman,
St. Clair County, Michigan 1990
Total33,728  2,202  65.32,981  88.4
15 – 195,341  255  47.7393  73.6
20 – 2910,797  1,390  128.71,840  170.4
30 – 3912,320  533  43.3711  57.7
40 +5,270  21  4.032  6.1

Notes:

Rates are per 1,000 female population.
Pregnancies
Estimated pregnancies are the sum of live births, induced abortions and estimated miscarriages.

Source: 1990 Michigan Abortion File
Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services

Bridged Population Estimates (latest update 9/30/2016) released by the National Center for Health Statistics (NCHS), CDC.