Lymphocytic leukemia Assignment Help
An epidemiologist is interested to know the 10-year survival probability of children diagnosed with acute lymphocytic leukemia (ALL). The life table below represents 100,000 children who were diagnosed with ALL within the past year. Each interval in the life table represents the number of years followed. Use this life table below to answer the following questions.
| Life table of 100,000 children diagnosed with acute lymphocytic leukemia | |||||||
| Years of follow-up | Number at Risk | # of Deaths | # of Lost to Follow-up or Competing Causes (Censored) | Effective Number at Risk | Risk of Death | Survival Probability | Cumulative Survival Probability |
| 0-5 | 100,000 | 5,000 | 7,000 | ||||
| 6-10 | 3,000 | 4,400 | |||||
What is the effective number of children at risk for the first interval (0-5 years of follow-up)? Lymphocytic leukemia Assignment Help
What is the risk of death for the first interval?
What is the survival probability for the first interval?
What is the number of children at risk for the second interval?
What is the cumulative survival probability at the end of 10 years of follow-up?
Directions for the rest of the questions. please see the following 2X2 table. All of your calculations can be done on a separate piece of paper and do not need to be shown for the exam. Lymphocytic leukemia Assignment Help
*For these questions, please only enter your final calculation into the blank.
*Remember to use the correct rounding as your answers will be automatically graded and therefore not sensitive to discrepancies in rounding.
What is the relative risk?
| Lung Disease | No Lung Disease | Total | |
| Any Smoking | 155 | 2,495 | 2,650 |
| No Smoking | 2,008 | 48,355 | 50,363 |
What is the ln(RR)?
What is the standard error of the ln(RR)?
What is the lower 95% confidence interval?
What is the upper 95% confidence interval?
Smoking increases the risk of lung disease. T/F
The relative risk is statistically significant.T/F
If you had calculated a 90% confidence interval, it would be more precise.T/F
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