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Review
. 2003 Aug 4;89(3):431-6.
doi: 10.1038/sj.bjc.6601119.

Survival analysis part II: multivariate data analysis--an introduction to concepts and methods

M J Bradburn  1 , T G Clark, S B Love, D G Altman
Affiliations
Review

Survival analysis part II: multivariate data analysis--an introduction to concepts and methods

M J Bradburn et al. Br J Cancer. .
No abstract available

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Figures

Figure 1
Figure 1
Example of (non-) proportional hazards (groups (c) and (d) only have proportional hazards) using the Weibull distribution. For the Weibull survival model, the hazard function h(t)=λs(λt)s−1 for λ, s>0: (a) increasing hazard (λ=0.5, s=1.25); (b) decreasing hazard (λ=0.25, s=0.75); (c) decreasing hazard (λ=0.5, s=0.5); (d) decreasing hazard (λ=0.25, s=0.5).
Figure 2
Figure 2
Predicted 5-year survival of ovarian cancer patients by age and FIGO stage.
Figure 3
Figure 3
Illustration of the AFT model: (——), S0(t) the baseline survival function; (·······), S(t1)=S0(ϕt) for ϕ<1; (- - - - - -), S(t2)=S(ϕt) for ϕ>1.
See this image and copyright information in PMC

References

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