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Table 5 AIC values for the three models using 3 to 8 degrees of freedom for temperature and 2 to 6 degrees of freedom for lag, Stockholm, 1990–2002 in ages 45 to 79 years of age

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

df Temperature Spline No heat wave variable (model 1) With heat wave duration variable (model 2) With heat wave indicator variable (model 3)
  df Lag Spline = 2
3 17410 17405 17406
4 17415 17409 17410
5 17416 17412 17412
6 17416 17412 17413
7 17417 17415 17415
8 17419 17417 17417
  df Lag Spline = 4
3 17418 17413 17413
4 17423 17418 17419
5 17428 17424 17425
6 17430 17428 17428
7 17426 17426 17426
8 17434 17434 17434
  df Lag Spline = 6
3 17426 17421 17421
4 17435 17430 17430
5 17443 17440 17440
6 17448 17447 17446
7 17448 17448 17447
8 17456 17457 17456