This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
All are methods of survival analysis except 
Select and explain. 
A. Kaplan meier method, B. Actuarial method, C. Kruskal wallis, D. Survival rate
D: Survival rate
Answer: D: Survival rate 
Explanation: Survival analysis is a branch of statistics for analyzing the expected duration of time until one or more events happen, such as death in biological organisms and failure in mechanical systems. Survival analysis is used in several ways: To describe the survival times of members of a group Life tables Kaplan-Meier curves Survival function Hazard function To compare the survival times of two or more groups Log-rank test To describe the effect of categorical or quantitative variables on survival Cox propoional hazards regression Parametric survival models Survival trees Survival random forests