Question

A population of 100 healthy women was followed up for the development of breast cancer. 20...

A population of 100 healthy women was followed up for the development of breast cancer. 20 women were followed‐up for 1 year and were then lost to follow‐up. After being followed-up for 5 years, 10 women developed breast cancer. The remaining women who never developed breast cancer were followed for 10 years. Calculate the incidence rate of breast cancer in this population.

A. 14 per 1000 person years

B. 10 per 1000 person years

C. 13 per 1000 person years

D. 12 per 1000 person years

What is the reasoning for the answer?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

j

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In a mass screening of 5000 women, 25 of these were found to have breast cancer....
In a mass screening of 5000 women, 25 of these were found to have breast cancer. During the next 5 years 10 more of the examined women developed breast cancer. Calculate the point prevalence of breast cancer in this population. What is the risk of developing breast cancer among these women?
1. A study is conducted in which 10,000 women without breast cancer are enrolled, questioned about...
1. A study is conducted in which 10,000 women without breast cancer are enrolled, questioned about alcohol consumption, and then followed for future development of breast cancer. The design of this study is best described as: a. Cohort study b. Ecologic study c. Case-control study d. Cross-sectional study 2. A study is conducted in which 10,000 women without breast cancer are enrolled, questioned about alcohol consumption, and then followed for future development of breast cancer. If heavy alcohol drinkers who...
Epidemiology_April To evaluate possible risk factors for breast cancer,investigators conducted a case-control study Cases: 1000 women...
Epidemiology_April To evaluate possible risk factors for breast cancer,investigators conducted a case-control study Cases: 1000 women with breast cancer who had previously given birth using a tumor registry list from Massachusetts Controls:1000 women without breast cancer who had previously given birth were selected at random from voter registration lists All subjects were interviewed on a variety of exposures including reproductive characteristics,demographic information,and past medical history 525 of those with breast cancer reported having an age at first birth of 35...
An unusual infectious disease has affected a small community (population = 962 persons) and infected 123...
An unusual infectious disease has affected a small community (population = 962 persons) and infected 123 people over a one-year period. Further, 17 infected persons have died in that year. Alarmed by the first year’s experience, the local Public Health Department set up a cohort study at the start of the second year, and followed the remaining healthy members of the population annually for the next three years. At the end of the first year of the cohort study, 97...
Thirty nine women with a diagnosis of inoperable or metastatic breast cancer have been followed-up for...
Thirty nine women with a diagnosis of inoperable or metastatic breast cancer have been followed-up for a number of years, while under continuous treatment with a medication called trastzuzumab. The time (in months) each patient remained in remission was recorded. Remission is is a decrease or disappearance of signs and symptoms of cancer. Below is the data. 50 74 35 39 21 37 27 35 30 35 26 38 34 34 26 41 61 33 33 26 25 41 35...
Incidence Rate Question with the answer (not sure how denominator & nominator have been founded, please...
Incidence Rate Question with the answer (not sure how denominator & nominator have been founded, please can explain the below answer) The denominator consists of the population at risk (i.e., those who are at risk for contracting the disease). Example: Calculate the incidence rate of postmenopausal breast cancer in the IWHS. The population at risk in this example would not include women who were still premenopausal (n = 569), women who had had their breasts surgically removed (n = 1,870),...
On January 1st, 2006, healthy men beginning highly stressful jobs in LA County, CA, were enrolled...
On January 1st, 2006, healthy men beginning highly stressful jobs in LA County, CA, were enrolled in a follow-up study of the relationship between job stress and hypertension, medical histories and physical exams revealed that all subjects were normotensive at the time. The study was concluded on 12/31/200. Authors reported 10 men developed hypertension after 6 months, 15 additional men developed hypertension after 1 year, 20 additional men developed hypertension after 18 months and 100 men who had not developed...
Suppose that you began a one-year study of tuberculosis (TB) in a subsidized housing community in...
Suppose that you began a one-year study of tuberculosis (TB) in a subsidized housing community in the Lower East Side of New York City on January 1st, 2010. You enrolled 500 residents in your study and checked on their TB status on a monthly basis. At the start of your study on January 1st, you screened all 500 residents. Upon screening, you found that 20 of the healthy residents were immigrants who were vaccinated for TB and so were not...
Suppose in January 2006 you conducted a study in a subsidized housing community in the Boerum...
Suppose in January 2006 you conducted a study in a subsidized housing community in the Boerum Hill section of Brooklyn, NY. You enrolled 1000 residents in your study and checked on their tuberculosis (TB) status on a monthly basis. At the start of your study on January 1st, screening of the entire study population revealed that 25 of the healthy residents were immigrants who were vaccinated for TB and so were not at risk. Another 45 residents already had existing...
Question 1. The main purpose of screening is to identify symptomatic disease using tests, exams, or...
Question 1. The main purpose of screening is to identify symptomatic disease using tests, exams, or other procedures. True False Question 2. The detectable pre-clinical phase of a disease starts when the disease can be identified by a screening test and ends when the disease produces symptoms. True False Question 3 .Diseases that are appropriate for screening… a. Have serious consequences b. Have a treatment that is more effective at an earlier stage c. Have a detectable preclinical phase that...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT