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US Adult Obesity vs US College Enrollment

US Adult Obesity and US College Enrollment correlate at r = +0.90 over 30 years (1980–2022), p < 0.0001. With the time trend removed, r = +0.35. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.90 to 0.35 once the trend is removed.

Pearson r
+0.90
p-value
< 0.0001
Years compared (n)
30 (1980–2022)
95% confidence interval
0.81 to 0.95
Correlation with the time trend removed
+0.35

Sources

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