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Natality Dashboard

Vital Statistics Rapid Release

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Select options for topic, time period, and indicator. Once options are selected, click 'Generate Chart'.

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NOTES: For comparability with rates for 12-month periods, the quarterly (3-month) rates have been annualized to present births per year per 1,000 population that would be expected if the quarter specific rate prevailed for 12 months.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: Rates for "12 months ending with quarter" (also called moving average rate) are the average rates for the 12 months that end with the quarter on the horizontal (time) axis. Estimates for the 12-month period ending with a specific quarter include all seasons of the year and, thus, are insensitive to seasonality.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: The general fertility rate refers to the total number of births per 1,000 women aged 15-44.

For comparability with rates for 12-month periods, the quarterly (3-month) rates have been annualized to present births per year per 1,000 population that would be expected if the quarter-specific rate prevailed for 12 months.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: The general fertility rate refers to the total number of births per 1,000 women aged 15-44.

Rates for "12 months ending with quarter" (also called moving average rate) are the average rates for the 12 months that end with the quarter on the horizontal (time) axis. Estimates for the 12-month period ending with a specific quarter include all seasons of the year and, thus, are insensitive to seasonality.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: For comparability with rates for 12-month periods, the quarterly (3-month) rates have been annualized to present births per year per 1,000 population that would be expected if the quarter-specific rate prevailed for 12 months.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: Rates for "12 months ending with quarter" (also called moving average rate) are the average rates for the 12 months that end with the quarter on the horizontal (time) axis. Estimates for the 12-month period ending with a specific quarter include all seasons of the year and, thus, are insensitive to seasonality.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: Low-risk cesarean delivery rate refers to cesarean deliveries among singleton, nulliparous (first birth), term (37 completed weeks of gestation or more), nonbreech births.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: Low-risk cesarean delivery rate refers to cesarean deliveries among singleton, nulliparous (first birth), term (37 completed weeks of gestation or more), nonbreech births.

Rates for "12 months ending with quarter" (also called moving average rate) are the average rates for the 12 months that end with the quarter on the horizontal (time) axis. Estimates for the 12-month period ending with a specific quarter include all seasons of the year and, thus, are insensitive to seasonality.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: Preterm birth refers to infants born at less than 37 completed weeks of gestation, based on the obstetric estimate of gestation at delivery (see reference 4). Early preterm refers to infants born at less than 34 weeks; late preterm refers to infants born at 34-36 weeks.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: Preterm birth refers to infants born at less than 37 weeks, based on the obstetric estimate of gestation at delivery (see reference 4). Early preterm refers to infants born at less than 34 weeks gestation, while late preterm refers to infants born at 34-36 weeks gestation.

Rates for "12 months ending with quarter" (also called moving average rate) are the average rates for the 12 months that end with the quarter on the horizontal (time) axis. Estimates for the 12-month period ending with a specific quarter include all seasons of the year and, thus, are insensitive to seasonality.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: Early term refers to births at 37-38 completed weeks of gestation, full term to births at 39-40 weeks and late term to infants delivered at 41 weeks. Gestational age is based on the obstetric estimate of gestation at delivery (see reference 4).

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

NOTES: Early term refers to births at 37-38 completed weeks of gestation, full term to births at 39-40 weeks and late term to infants delivered at 41 weeks. Gestational age is based on the obstetric estimate of gestation at delivery (see reference 4).

Rates for "12 months ending with quarter" (also called moving average rate) are the average rates for the 12 months that end with the quarter on the horizontal (time) axis. Estimates for the 12-month period ending with a specific quarter include all seasons of the year and, thus, are insensitive to seasonality.

A hollow circle indicates that estimates for the most recent quarter are significantly different from the same quarter of the previous year (P < 0.05); these estimates are also flagged in the data table with an asterisk (*).

SOURCE: NCHS, National Vital Statistics System. Estimates for [recent year] are based on provisional data. Estimates for [other years] are based on final data (available from: http://wonder.cdc.gov/).

Quarterly Provisional Estimates Technical Notes

Suggested citation
Rossen LM, Osterman MJK, Hamilton BE, Martin JA. Quarterly provisional estimates for selected birth indicators, [date range]. National Center for Health Statistics. National Vital Statistics System, Vital Statistics Rapid Release Program. 2017.

  • Page last reviewed: February 27, 2017
  • Page last updated: February 27, 2017
  • Content source: CDC, National Center for Health Statistics
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