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Table 6 Relative risks (RRs) and confidence intervals (CI; 95%) associated with heat waves

From: On the estimation of heat-intensity and heat-duration effects in time series models of temperature-related mortality in Stockholm, Sweden

  Heat wave duration variable (model 2; unit: days of duration) Heat wave indicator variable (model 3; unit: heat wave = {yes, no})
df Temperature Spline df Lag Spline = 2    
  RR CI RR CI
3 1.037 1.014, 1.060 1.112 1.050, 1.176
4 1.039 1.015, 1.063 1.116 1.053, 1.183
5 1.038 1.013, 1.062 1.114 1.050, 1.182
6 1.038 1.013, 1.063 1.114 1.049, 1.182
7 1.038 1.013, 1.063 1.114 1.048, 1.183
8 1.037 1.011, 1.062 1.111 1.045, 1.180
  df lag spline = 4    
3 1.032 1.008, 1.056 1.100 1.034, 1.169
4 1.028 1.002, 1.054 1.088 1.018, 1.162
5 1.026 0.998, 1.053 1.086 1.011, 1.165
6 1.023 0.994, 1.051 1.081 1.003, 1.165
7 1.022 0.992, 1.051 1.087 1.005, 1.174
8 1.020 0.990, 1.051 1.088 1.004, 1.179
  df lag spline = 6    
3 1.032 1.008, 1.056 1.102 1.037, 1.172
4 1.028 1.002, 1.054 1.090 1.020, 1.165
5 1.025 0.998, 1.053 1.088 1.013, 1.168
6 1.023 0.994, 1.052 1.083 1.005, 1.167
7 1.022 0.993, 1.052 1.088 1.006, 1.176
8 1.019 0.989, 1.050 1.088 1.003, 1.179