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US Birth Rate vs US Imports
US Birth Rate and US Imports correlate at r = -0.73 over 55 years (1970–2024), p < 0.0001. With the time trend removed, r = +0.32. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is -0.73, but once each series' time trend is removed it becomes 0.32. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- -0.73
- p-value
- < 0.0001
- Years compared (n)
- 55 (1970–2024)
- 95% confidence interval
- -0.83 to -0.57
- Correlation with the time trend removed
- +0.32
Sources
- US Birth Rate (per 1,000 people): World Bank. US Birth Rate (World Bank indicator SP.DYN.CBRT.IN).
- US Imports (% of GDP): World Bank. US Imports (World Bank indicator NE.IMP.GNFS.ZS).
Related pairs
- US Imports vs US Life Expectancy (r = +0.95)
- Atmospheric Methane (global) vs US Birth Rate (r = -0.95)
- US Imports vs US Urban Population (r = +0.94)
- US Imports vs US Rural Population (r = -0.94)
- US Adult Obesity vs US Birth Rate (r = -0.93)
- US Median Age vs US Imports (r = +0.93)
Correlation does not imply causation. How the verdict is worked out.