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Lu Y et al.  
Study of Hip Fracture Risk using Tree Structured Survival Analysis

Journal für Mineralstoffwechsel & Muskuloskelettale Erkrankungen 2003; 10 (1): 11-16

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Abbildung
 
Hüftfrakturen - Tree Structured Survival Analysis
Abbildung 1: The Tree Structured Survival Analysis Using Age and AII BMD Variables (Model 1). The variables, corresponding cut-off points for splitting, number of subjects in each resulting subgroup, and the corresponding probability of hip fracture in a 6.5 year follow up period. Terminal groups TG2a and TG2b were combined due to their similar survival profiles.


Keywords: FrakturHüfteMineralstoffwechselRisikoSchemaTree Structured Survival Analysis
 
 
Hüftfrakturen - Kaplan-Meier
Abbildung 2: Kaplan-Meier survival curves for hip fractures. The differences in survival probability in the four groups increase with the length of follow up. After 6.5 years, the probability of no hip fracture was 80.86 % for TG1 versus 98.92 % for TG4.


Keywords: DiagrammFrakturHüfteKaplan-Meier-KurveMineralstoffwechsel
 
 
Hüftfrakturen - Tree Structured Survival Analysis
Abbildung 3: The Tree Structured Survival Analysis Using Age and Hip BMD Variables (Model 2). The variables, corresponding cut-off points for splitting, number of subjects in each resulting subgroup, and the corresponding probability of hip fracture in a 6.5 year follow up period. Terminal groups TG2a and TG2b were combined due to their similar survival profiles.


Keywords: FrakturHüfteMineralstoffwechselRisikoSchemaTree Structured Survival Analysis
 
 
Hüftfrakturen - Kaplan-Meier
Abbildung 4: Reproducibility of TSSA classification. Kaplan-Meier survival curves and the corresponding 95 % confidence bands (solid lines) for the four groups generated by classifying women in the validation data set according to the classification of scheme in Table 2. On each of the four plots, we also plotted the survival curves form Figure 2 (dotted lines). All the dotted lines). All the dotted lines were within the 95 % condidence bands of the observed survival curves from the validation data set.


Keywords: DiagrammMineralstoffwechsel
 
 
Hüftfrakturen - Kaplan-Meier
Abbildung 5: Survival curves for women with low Ward's BMD (n = 199), showing the difference between TG1a and TG2a


Keywords: DiagrammKnochenmineraldichteMineralstoffwechselWardsches Dreieck
 
 
 
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