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US Birth Rate vs US Infant Mortality

US Birth Rate and US Infant Mortality correlate at r = +0.88 over 65 years (1960–2024), p < 0.0001. With the time trend removed, r = +0.36. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.88 to 0.36 once the trend is removed.

Pearson r
+0.88
p-value
< 0.0001
Years compared (n)
65 (1960–2024)
95% confidence interval
0.81 to 0.93
Correlation with the time trend removed
+0.36

Sources

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Correlation does not imply causation. How the verdict is worked out.