Epidemiology Assignment: Calculating Rates and Analyzing Health Data

This assignment solution addresses various epidemiological concepts using a school nurse's study on cold symptoms. The solution provides answers to questions related to incidence, prevalence (point and period), and mortality rates. Specifically, it calculates the incidence of new colds, period prevalence, point prevalence on specific days, and period prevalence over a defined time frame. The assignment also explores factors influencing mortality assessment, such as changes in diagnostic criteria, age distribution, and coding. Furthermore, it analyzes the impact of treatments that prolong survival on prevalence. The solution includes detailed calculations and interpretations of the data, offering a comprehensive understanding of the epidemiological principles involved.

Running head: EPIDEMIOLOGY
EPIDEMIOLOGY
Name of the Student
Name of the University
Author’s note:

1EPIDEMIOLOGY
Answer to the question number 1:
∴Incidence of new colds = 5.
Answer to the question number 2:
∴Period prevalence for the entire duration of the observation = (7/10) = 0.7
Answer to the question number 3:
∴Incidence of new colds through and including day 4 = 5
Answer to the question number 4:
∴The point prevalence of colds on day 4 = (5/10) = 0.5
Answer to the question number 5:
∴The point prevalence of colds on day 6 = (3/10) = 0.3
Answer to the question number 6:
∴The period prevalence of colds from day 2 through and including day 6 = (6 /10) = 0.6
Answer to the question number 7:
All of the above.
Answer to the question number 8:
Incidence will decrease.
Answer to the question number 9:
∴Total person-day = 60 + 42 + 8 + 60 + 30 = 200
Answer to the question number 10:

2EPIDEMIOLOGY
∴Incidence rate per 1000 person-days = (3/200) X 1000 = 15 cases per 1000 person-days
Answer to the question number 11:
∴Crude (overall) death rate per 100,000 for area A = (310 / 100,000) X 100, 000 = 310
Answer to the question number 12:
∴Crude (overall) death rate per 100,000 for area B = ( 575 / 100,000) X 100, 000 = 575
Answer to the question number 13:
∴Age-specific death rate per 100,000 in area A for those 20 - 65 years = (60 / 30,000) X
100,000 = 200
Answer to the question number 14:
∴The adjusted death rate per 100,000 for area A = [(310 – 265) / 100,000] X 100,000 = 45
Answer to the question number 15:
∴The adjusted death rate per 100,000 for area B = [(575 – 265) / 100,000] X 100,000 = 310
Answer to the question number 16:
∴The case fatality rate among males was = (8 / 26) X 100 = 30.8