CorrelateAI › Pairs
US Marriage Rate vs US Birth Rate
US Marriage Rate and US Birth Rate correlate at r = +0.53 over 62 years (1960–2022), p < 0.0001. With the time trend removed, r = -0.67. Direction flips without the trend.
Verdict: Direction flips without the trend. The raw correlation is 0.53, but once each series' time trend is removed it becomes -0.67. The year-to-year movements run the opposite way to the long-run trends, so the headline number is misleading.
- Pearson r
- +0.53
- p-value
- < 0.0001
- Years compared (n)
- 62 (1960–2022)
- 95% confidence interval
- 0.32 to 0.69
- Correlation with the time trend removed
- -0.67
Sources
- US Marriage Rate (per 1,000 people): Our World in Data. US Marriage Rate (Our World in Data: Crude marriage rate).
- US Birth Rate (per 1,000 people): World Bank. US Birth Rate (World Bank indicator SP.DYN.CBRT.IN).
Related pairs
- US Marriage Rate vs US Adult Obesity (r = -0.98)
- US Marriage Rate vs US Resident Patent Applications (r = -0.95)
- Atmospheric Methane (global) vs US Birth Rate (r = -0.95)
- US Marriage Rate vs US Mobile Subscriptions (r = -0.95)
- Atmospheric Methane (global) vs US Marriage Rate (r = -0.95)
- US Marriage Rate vs US Health Expenditure (r = -0.94)
Correlation does not imply causation. How the verdict is worked out.