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Table 2 Estimates of peak and nadir months, rate ratios, and temporal cross-correlation coefficients between mortality types

From: Temporal patterns of suicide and circulatory system disease-related mortality are inversely correlated in several countries

  Circulatory disease-related Suicide  
Country Peak Nadir RR (95% CI) Peak Nadir RR (95% CI) Correl. (95% CI)
Australia July Jan. 1.29 (1.26, 1.31) Dec. June 1.14 (1.11, 1.18) −0.32 (−0.44, −0.19)
Brazil July Jan. 1.16 (1.14, 1.18) Dec. June 1.12 (1.10, 1.15) −0.57 (− 0.71, − 0.38)
England & Wales Jan. July 1.29 (1.24, 1.33) April Oct. 1.08 (1.04, 1.12) 0.14 (−0.12, 0.38)
South Korea Jan. July 1.29 (1.26, 1.32) June Dec. 1.27 (1.21, 1.33) −0.32 (− 0.42, − 0.20)
United States Jan. July 1.22 (1.20, 1.23) July Jan. 1.13 (1.11, 1.14) −0.66 (− 0.75, − 0.56)
  1. Legend: Jan. January, Oct. October, Dec. December; RR Rate ratio comparing the relative mortality rate at the peak month to the mortality rate at the nadir month; Correl. Cross-correlation between monthly suicide and circulatory system disease-related mortality over time. Note: All analyses have been adjusted to account for the uneven number of days in the month, so that monthly mortality rates have been scaled to an average month of length of 30-days