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Table 2 Estimated daily percent increase in mortality (95% CI) associated with one standard deviation of z-score Kp index

From: Geomagnetic disturbances driven by solar activity enhance total and cardiovascular mortality risk in 263 U.S. cities

  Total CVD MI Stroke
Winter 0.13 (0.02,0.24)* −0.04(− 0.22,0.13) 0.21(− 0.07,0.5) −0.74(− 0.96,-0.51)****
Spring 0.31 (0.21,0.41)**** 0.21 (0.05,0.37)** 0.4 (0.05,0.72)* −0.03(− 0.4,0.33)
Summer 0.27 (0.16,0.37)**** 0.15(−0.01,0.33) 0.14(−0.2,0.5) −0.52(− 0.14,-0.9)**
Fall 0.31 (0.23,0.4)**** 0.34 (0.23,0.44)**** 0.7 (0.43,0.94)**** 0.06(−0.3,0.4)
  1. *p-value < 0.05; **p < 0.001; ***p < 0.0001; ****p < 0.00001