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Table 3 Linear Regressions on Quintiles

From: A geospatiotemporal and causal inference epidemiological exploration of substance and cannabinoid exposure as drivers of rising US pediatric cancer rates

Parameter Estimates Model Parameters
Parameter Estimate (C.I.) P-Value R-Squared F dF P-Value
Quintiles
lm(Cancer_Rate ~ Quintile)
  Quintile 2 0.2 (−0.29, 0.69) 0.4242 0.04527 9.34 4745 2.27E-07
  Quintile 3 0.14 (−0.35, 0.63) 0.5655     
  Quintile 4 0.72 (0.23, 1.2) 0.0042     
  Quintile 5 1.31 (0.82, 1.8) 1.8E-07     
Dichotomized Quintiles
lm(Cancer_Rate ~ Dichotomized_Quintiles)     
  Upper_2_Quintiles 0.9 (0.58, 1.22) 3.9E-08 0.0383 30.9 1748 3.86E-08
Dichotomized Quintiles Over Time
lm(Cancer_Rate ~ Year + Dichotomized_Quintiles)
  Upper_2_Quintiles 0.9 (0.59, 1.2) 1.1E-08 0.111 47.8 2747 < 2E-16
lm(Cancer_Rate ~ Year: Dichotomized_Quintiles)
  Lower_3_Quintiles 0.139 (0.1, 0.17) 1.2E-14 0.111 47.7 2747 < 2E-16
  Upper_2_Quintiles 0.1395 (0.1, 0.17) 1.0E-14     
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