1 CostHelper readers report paying $1,000-$5,000 for an implant with an average cost of $2,488.  Placing an abutment and a dental crown on a single implant typically adds $500-$3,000 to the cost of just the implant, for a total of $1,500-$13,000 or more. CostHelper readers report paying $1,750-$8,270 for an implant, flipper tooth, abutment, crown and all needed procedures, with an average cost of $4,263.
Paralytic polio is divided into three categories, according to the level of severity. The first type is called spinal polio. About 79% of paralytic cases are from spinal polio, and it is characterized by asymmetrical paralysis of the legs. The second type is called bulbar polio and it accounts for 2% of polio infections.
For example, in a clinical trial with survival time as the outcome, if the hazard ratio is 0.5 comparing participants on a treatment to those on placebo, this suggests a 50% reduction in the hazard (risk of failure assuming the person survived to a certain point) in the treatment group as compared to the placebo.hese estimates of survival probabilities at specific times and the median survival time are point estimates and should be interpreted as such. There are formulas to produce standard errors and confidence interval estimates of survival probabilities that can be generated with many statistical computing packages.