U.S. teen birth rate declined from 61.8 to 17.4 per 1,000 females from 1991 to 2018

A statistical report from the U.S. National Vital Statistics System provided observational data on birth rates among teens aged 15-19 years from 1991 to 2018. The analysis tracked the birth rate per 1,000 females in this age group over this 27-year period. No specific intervention or comparator was reported in this descriptive analysis.

The primary finding was a substantial decline in the teen birth rate, from 61.8 per 1,000 females in 1991 to 17.4 per 1,000 females in 2018. This represents a record low for this metric in the United States. No effect sizes, p-values, or confidence intervals were reported for this descriptive trend. Secondary outcomes, safety data, and tolerability information were not reported.

Key limitations include the purely observational nature of the data, which shows association over time but cannot support causal inferences. The report did not examine mechanisms, contributing factors, or potential confounders behind the observed decline. Generalizability beyond the United States is uncertain. Funding sources and conflicts of interest were not reported.

For clinical practice, this report documents a notable descriptive trend in U.S. teen birth rates over nearly three decades. However, the absence of causal analysis means clinicians should not attribute the decline to specific programs or policies without further evidence. The data provide context for population-level trends but offer limited guidance for individual patient management.