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the claim

The average age of first-time mothers in the United States has risen steadily since 1970.

the verdict
INSUFFICIENT LEANING
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that the average age of first-time mothers in the United States has risen steadily since 1970?

Unclear. A CDC/NCHS data story reports the average age of mothers in the United States rose steadily from 1970 through 2014, and a 2012 review states the average age of first-time mothers rose from 21.4 years in 1970 to 25.0 in 2006. Neither source provides a year-by-year series showing a steady rise specifically for first-time mothers.

Verdict: PARTIAL LEAN · 3 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 3
The Rising Age of Motherhood in the United States | NCHS Blog | CDC
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The Rising Age of Motherhood in the United States | NCHS Blog | CDC. (n.d.). cdc.gov. https://www.cdc.gov/nchs/blog/posts/2025/06/the-rising-age-of-motherhood-in-the-united-states.html

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More for · 2
Neonatal risks from in vitro fertilization and delayed motherhood.
2012
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Bellieni, C. V. (2012). Neonatal risks from in vitro fertilization and delayed motherhood.. doi.org. https://doi.org/10.5409/wjcp.v1.i4.34

Older maternal age at first delivery as a risk factor for pelvic organ prolapse: what we know.
2025
Get citation
Zabriskie, H. A., Drummond, M. J., Nygaard, I. E., & Swenson, C. W. (2025). Older maternal age at first delivery as a risk factor for pelvic organ prolapse: what we know.. doi.org. https://doi.org/10.1016/j.ajog.2025.03.006

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