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Table 1  Comparison of COVID-19 rates by country and border proximity

From: COVID-19 needs no passport: the interrelationship of the COVID-19 pandemic along the U.S.-Mexico border

         95% Confidence interval   95% Confidence interval
Country Border Areaa Cases Deaths Population Crude Case Rate per 100,000 Crude Death Rate per 100,000 Age-Adjusted Death Rate Lower Upper Standardized Mortality Ratio Lower Upper
USA No 10,096,659 159,416 71,189,008 14,182.90 223.9 251.35 250.12 252.59 1.02 1.01 1.02
Yes 1,174,581 20,950 7,905,367 14,858.00 265 288.54 284.66 292.48 1.17 1.15 1.18
Mexico No 860,898 54,807 23,454,811 3,670.50 233.7 235.17 233.21 237.15 0.78 0.78 0.79
Yes 299,454 26,956 10,715,974 2,794.50 251.5 282.67 279.32 286.06 0.94 0.93 0.95
  1. aOnly includes counties within states that are on the border