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Table 4 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 80 years of age and above

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 17962 17961 17957
4 17966 17965 17961
5 17970 17969 17965
6 17971 17970 17966
7 17974 17972 17968
8 17977 17975 17971
  df Lag Spline = 4
3 17958 17960 17958
4 17959 17961 17961
5 17967 17969 17968
6 17971 17973 17972
7 17977 17979 17977
8 17982 17984 17983
  df Lag Spline = 6
3 17958 17959 17957
4 17961 17963 17963
5 17972 17974 17974
6 17980 17981 17981
7 17989 17991 17990
8 17997 17999 17998