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US Milk Consumption per Person vs US Population

US Milk Consumption per Person and US Population correlate at r = -0.51 over 63 years (1961–2023), p < 0.0001. With the time trend removed, r = -0.09. Interpret with caution.

Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from -0.51 to -0.09 once the trend is removed.

Pearson r
-0.51
p-value
< 0.0001
Years compared (n)
63 (1961–2023)
95% confidence interval
-0.67 to -0.30
Correlation with the time trend removed
-0.09

Sources

Related pairs

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