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. 2012 Jun 24;12:86. doi: 10.1186/1471-2288-12-86

Table 3.

Sensitivity to knot configuration

        Model Baseline, dfb Age, dfa Year, dfy Number of parameters AIC BIC
        a
5
3
3
38
304202
304537
        b
4
3
3
36
304219
304537
        c
3
3
3
34
304291
304592
        d
5
2
3
35
304207
304517
        e
5
4
3
41
304165
304527
        f
5
3
2
35
304197
304507
        g 5 3 4 41 304204 304565

Degrees of freedom for the baseline log cumulative excess mortality, dfb, the time-dependent effect of age at diagnosis, dfaand year at diagnosis, dfy.