Measuring Morbidity: Prevalence and Incidence

Examining data for prevalence and incidence of a disease or pathology helps public health officials to understand how the disease or pathology is affecting a specific population over a period of time. By understanding this, strategies can be introduced to intervene or address the issues.

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For this assignment, examine prevalence and incidence to measure morbidly for a disease. Read the scenario below and complete the assignment as instructed.

Scenario

In Community X (population 20,000), an epidemiologist conducted a prevalence survey in January of 2012 and reported an HIV prevalence of 2.2%. Over the next 12 months, the department of health reported an additional 50 new HIV cases between February 2012 and January 2013. The total population stayed constant at 20,000.

Part 1

How many people had HIV in January 2012? Present or describe the formula you used to arrive at your answer.
Calculate the incidence rate assuming no HIV-related deaths over the 12-month period. Present or describe the formula you used to arrive at your answer. Be sure to clearly indicate the numerator and denominator used in your calculation and include an appropriate label for the rate.
In a summary of 200-250 words, interpret the results and discuss the relationship between incidence and prevalence. Discuss whether or not the epidemiologist should be concerned about these new HIV infections, assuming a previous incidence rate of 0.5 per 1,000 person-years prior to this updated risk assessment.

You are required to cite to a minimum of three sources to complete this assignment. Sources must be published within the last 5 years and appropriate for the assignment criteria and public health content.

While APA style is not required for the body of this assignment, solid academic writing is expected, and documentation of sources should be presented using APA formatting guidelines, which can be found in the APA Style Guide, located in the Student Success Center.

Please read the assignment for the details.

Rubric_Print_Format9.xlsx

Rubic_Print_Format

Course Code	Class Code	Assignment Title	Total Points
PUB-540	PUB-540-O500	Measuring Morbidity: Prevalence and Incidence	50.0
Criteria	Percentage	1: Unsatisfactory (0.00%)	2. Less Than Satisfactory (74.00%)	3. Satisfactory (79.00%)	4. Good (87.00%)	5. Excellent (100.00%)	Comments	Points Earned
Criteria	100.0%
People With HIV Based on Prevalence of 2.2%	30.0%	The number of people with HIV is not presented.	The number of people with HIV is presented, but the answer is incorrect; or the answer is correct, but the calculations are not presented.	The number of people with HIV is presented along with the calculations, but the answer or calculations are not correct.	N/A	The correct number of people with HIV is presented. All calculations use the correct numbers and are calculated correctly.
Calculation of Incident Rate Over 12 Months	30.0%	Incident rate is not calculated.	Incident rate is calculated, but is incorrect; or incident rate is correct, but calculations are not presented.	Incidence rate is calculated and formulas used in the calculation are presented, but incidence rate or calculations are not correct.	N/A	Incident rate is calculated correctly and presented in accordance with the assignment guidelines. All calculations use the correct numbers and are calculated correctly.
Summary (Interpretation of results, incidence and prevalence, projected concerns)	30.0%	Interpretation of the calculations/results is not presented.	An incomplete interpretation of calculations/results is summarized.	A general interpretation of the calculations/results is presented. The relationship between incidence and prevalence is summarized. General reasoning for future concerns regarding HIV infections is presented. The interpretation does not fully reflect the calculations/results presented. The summary has some inaccuracies or needs more detail or evidence for claims.	An interpretation of the calculations/results is presented. The relationship between incidence and prevalence is presented. Adequate rationale for future concerns regarding HIV infections is presented. The interpretation reflects the calculations/results presented. Evidence is adequate to support claims. Some detail is needed for clarity.	A detailed interpretation of the calculations/results is presented. The relationship between incidence and prevalence is clearly presented. Compelling rationale for future concerns regarding HIV infections is presented. The interpretation reflects the calculations/results presented. Strong evidence is provided to support claims.
Mechanics of Writing (includes spelling, punctuation, grammar, and language use)	5.0%	Surface errors are pervasive enough that they impede communication of meaning. Inappropriate word choice or sentence construction is employed.	Frequent and repetitive mechanical errors distract the reader. Inconsistencies in language choice (register) or word choice are present. Sentence structure is correct but not varied.	Some mechanical errors or typos are present, but they are not overly distracting to the reader. Correct and varied sentence structure and audience-appropriate language are employed.	Prose is largely free of mechanical errors, although a few may be present. The writer uses a variety of effective sentence structures and figures of speech.	The writer is clearly in command of standard, written, academic English.
Documentation of Sources (citations, footnotes, references, bibliography, etc., as appropriate to assignment and style)	5.0%	Sources are not documented.	Documentation of sources is inconsistent or incorrect, as appropriate to assignment and style, with numerous formatting errors.	Sources are documented, as appropriate to assignment and style, although some formatting errors may be present.	Sources are documented, as appropriate to assignment and style, and format is mostly correct.	Sources are completely and correctly documented, as appropriate to assignment and style, and format is free of error.
Total Weightage	100%