Rates and ratios are calculated for a specific time period, typically a calendar year or a multiple of calendar years. Unless otherwise specified, all rates provided in this report are for Texas residents and are for the time period January 1, 2003 through December 31, 2003.

• Abortion rate: Number of abortions obtained by women of all ages per 1,000 women 15 through 44 years of age:
  Number of legal induced terminations of pregnancy / Female population _{15 - 44} * 1,000
• Abortion ratio: Number of abortions per 1,000 live births:
  Number of legal induced terminations of pregnancy / Number of live births * 1,000
• Age-specific rate: Number of events occurring to a specified age group per 1,000 population of the specified age group:
  Number of events / Number in age group * 1,000
• Cause-specific death rate: Number of deaths due to a specific cause per 100,000 population:
  Number of deaths from a specified cause / Estimated midyear population * 100,000
• Crude birth rate: Number of live births per 1,000 population:
  Number of live births / Estimated midyear population * 1,000
• Crude death rate: Number of deaths per 1,000 population:
  Number of deaths / Estimated midyear population * 1,000
• Crude divorce rate: Number of divorces per 1,000 population:
  Number of divorces / Estimated midyear population * 1,000
• Crude marriage rate: Number of marriages per 1,000 population:
  Number of marriages / Estimated midyear population * 1,000
• Fetal death rate: Number of fetal deaths per 1,000 live births plus fetal deaths:
  Number of fetal deaths / (Live births + fetal deaths) * 1,000
• Fetal death ratio: Number of fetal deaths per 1,000 live births:
  Number of fetal deaths / Number of live births * 1,000
• General fertility rate (GFR): Number of births per 1,000 females ages 15 through 44:
  Number of live births / Female population _{15 - 44} * 1,000
• Infant death rate: Deaths of individuals less than 1 year of age per 1,000 live births:
  Number of deaths _{< 1 yr} / Number of live births * 1,000
• Maternal death rate: Number of maternal deaths per 100,000 live births:
  Number of maternal deaths / Number of live births * 100,000
• Neonatal death rate: Number of individuals dying at less than 28 days of age per 1,000 live births:
  Number of infant deaths _{< 28 days} / Number of live births * 1,000
• Perinatal mortality ratio: Sum of fetal deaths plus neonatal deaths per 1,000 live births:
  (Fetal deaths + neonatal deaths) / Number of live births * 1,000
• Perinatal mortality rate: Sum of fetal deaths plus neonatal deaths per 1,000 live births plus fetal deaths:
  (Fetal deaths + neonatal deaths) / (Fetal deaths + Number of live births) * 1,000
• Post-neonatal mortality rate: Number of infants dying at 28 to 365 days of age per 1,000 live births:
  Number of infant deaths _{28-365 days} / Number of live births * 1,000
• Pregnancy rate: Number of pregnancies (live births, fetal deaths, and induced abortions) per 1,000 females ages 15 through 44:
  (live births + fetal deaths + induced terminations of pregnancy) / Female population _15-44 * 1,000

Total pregnancies are underreported because fetal deaths of less than 20 weeks gestation are not required to be reported.

• Rate of natural increase: The difference between the crude birth rate and the crude death rate:
  Crude Birth Rate - Crude Death Rate

Return to 2003 Annual Report

Center for Health Statistics