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Table 1 Average values of daily mortality, daily maximum temperature (Tmax) of the summer months; rate of change in minimum mortality temperatures (MMT) and threshold temperatures (Tthreshold) by region during the 1983–2018 period

From: Evolution of the threshold temperature definition of a heat wave vs. evolution of the minimum mortality temperature: a case study in Spain during the 1983–2018 period

Region (capital of region) Mortality rate 1983–2018 Tmax (℃) summer 1983–2018 MMT trend (ºC/decade) Tthreshold trend (℃/decade) Pearson correlation
Alicante 2.09 29.6 0.69** 0.51 0.629*
Asturias (Oviedo) 2.89 22.4 0.33 1.01* 0.018
Barcelona 2.14 27.1 0.45* 0.87** 0.628**
Badajoz 2.49 33.0 0.65* −0.25 −0.142
Bizkaia (Bilbao) 2.23 25.0 0.20 1.32* 0.342
Madrid 1.76 29.9 0.60* 1.08** 0.406
Orense 3.22 29.3 0.66* 1.05 −0.330
Sevilla 2.06 34.1 1.14** 0.93** 0.419
Valladolid 2.09 27.0 −0.80 0.98 −0.476
Zaragoza 2.50 30.5 0.62* 1.29* 0.573*
  1. Pearson correlation coefficients of the bivariate correlations obtained from the series of annual values of Tthreshold and MMT. *Significance p < 0.05; ** Significance p < 0.01