SlideShare ist ein Scribd-Unternehmen logo
1 von 6
PBH 321 M2A1: Measuring Disease
FOR MORE CLASSES VISIT
tutorialoutletdotcom
PBH 321 M2A1: Measuring Disease Occurrence - Applying Math
Concepts Introduction
By the end of this activity, you will be able to recognize the utility of
each measure of occurrence applied in
epidemiology for presenting specific types of information in a
meaningful way, and be able to calculate
measures of disease occurrence.
Instructions
Before answering the below questions, read the required pages in your
text, and review the module notes. For
all questions that require computation, show your calculations, round to
the nearest 10 th degree, and use an
appropriate multiplier, where necessary.
Here is an example showing your calculations, rounding to the nearest
10 th degree, and using a multiplier.
Example question: There were 25 new cases of disease A out of 1,097
people at risk. What is the incidence
rate of disease A per 100,000 people?
Answer:
25/1,097*100,000 = 2,278.9 per 100,000
In this answer, *100,000 is the “multiplier” and the .9 in the number
2,278.9 is the “10 th degree.” Make sure to save your worksheet to your
computer before entering answers. After you have completed your
worksheet, return to the course assignment and follow instructions there
to upload and submit it.
For the first set of questions, you will explore Dengue in Puerto Rico
Dengue is an emerging disease that “is transmitted between people by
the mosquitoes Aedes
aegypt and Aedes albopictus, which are found throughout the world”
(Transmission of the Dengue Virus). The
case fatality rate is 10%, and is currently the leading cause of illness and
death in the tropics and subtropics.
Let’s pretend that the numbers below represent new cases of Dengue in
San Juan, Puerto Rico in 2009.
San Juan, 2009
Jan.
Number of 75
new cases
Population 2,202
at risk Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. 80 81 79
80 84 225 219 220 210 215 68 2,210 2,101 2,118 2,101 2,200 2,180
2,175 2,195 2,145 2,119 2,187 Using the table above, please answer the
following questions. Place your answer in the area below each
question (all answer entry boxes expand to accommodate your text).
1) Given that there were 81 new cases in March, what was the incidence
rate per 1,000 people in March?
Click or tap here to enter text. 2) Given that there were 219 new cases in
August, what was the incidence rate per 1,000 people in August?
Click or tap here to enter text. 3) What might you suggest is the reason
for the difference between March and August in terms of the
incidence rate? (1-3 sentences)
Click or tap here to enter text. PBH 321 M2A1: Measuring Disease
Occurrence - Applying Math Concepts In late 2009, a major campaign
was launched in San Juan, Puerto Rico encouraging residents to
minimize
standing water (where mosquitos breed). To see if the initiative had an
impact, it was decided that a
comparison of cases would be made between San Juan (where the
campaign was launched), and Ponce
(where no campaign was launched). Let’s imagine the numbers below
represent the new cases of Dengue in
2010 in San Juan and Ponce, Puerto Rico.
San Juan, 2010
Jan.
Number of 75
new cases
Population 2,204
at risk Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. 80 80 79
80 84 120 118 120 111 105 68 2,212 2,113 2,204 2,111 2,159 2,170
2,180 2,200 2,122 2,129 2,200 Feb. Mar. Apr. May Jun. Jul. Aug. Sep.
Oct. Nov. Dec. 5 4 4 5 5 11 10 11 10 11 8 104 103 108 104 105 108 106
105 104 101 104 Ponce, 2010
Jan.
Number of 4
new cases
Population 105
at risk 4) Given that there were 80 new cases in March in San Juan, and
4 in Ponce, what was the incidence rate per
1,000 people in March in San Juan? In Ponce?
Click or tap here to enter text. 5) Given that there were 118 new cases in
August in San Juan, and 10 in Ponce, what was the incidence rate
per 1,000 people in August in San Juan? In Ponce?
Click or tap here to enter text. 6) Given these numbers what
recommendation would you make about continuing the campaign in
future
years, and expanding the campaign to other areas? Would you use the
number of cases, or the incidence
rate to support your recommendation? Explain your answer in 2-5
sentences.
Click or tap here to enter text. For the next question, you will be asked to
explore lung cancer in a highly populated city in the United States
In 2010, the prevalence of lung cancer in a suburb outside of Chicago
was 3.0%. In 2011,
************************************************
In 2010, the prevalence of lung cancer in a suburb outside of Chicago
was 3.0%. In 2011,
************************************************

Weitere ähnliche Inhalte

Ähnlich wie Pbh 321 m2 a1 measuring disease/tutorialoutlet

Malimu measures of disease frequency
Malimu measures of disease frequencyMalimu measures of disease frequency
Malimu measures of disease frequencyMiharbi Ignasm
 
assignment of statistics 2.pdf
assignment of statistics 2.pdfassignment of statistics 2.pdf
assignment of statistics 2.pdfSyedDaniyalKazmi2
 
CalculationsProblem #1 Fill in the blank spaces in the c.docx
CalculationsProblem #1 Fill in the blank spaces in the c.docxCalculationsProblem #1 Fill in the blank spaces in the c.docx
CalculationsProblem #1 Fill in the blank spaces in the c.docxRAHUL126667
 
Preparing for armageddon
Preparing for armageddonPreparing for armageddon
Preparing for armageddonRBKC
 
HEPATITIS A OUTBREAK INVESTIGATIONYou are a member of the Hepati
HEPATITIS A OUTBREAK INVESTIGATIONYou are a member of the HepatiHEPATITIS A OUTBREAK INVESTIGATIONYou are a member of the Hepati
HEPATITIS A OUTBREAK INVESTIGATIONYou are a member of the HepatiSusanaFurman449
 
EPI_-_EPIDEMIOLOGIC_MEASURES in public health .pptx
EPI_-_EPIDEMIOLOGIC_MEASURES  in public health .pptxEPI_-_EPIDEMIOLOGIC_MEASURES  in public health .pptx
EPI_-_EPIDEMIOLOGIC_MEASURES in public health .pptxTofikMohammadMuse
 
01 Descriptive Statistics for Exploring Data.pdf
01 Descriptive Statistics for Exploring Data.pdf01 Descriptive Statistics for Exploring Data.pdf
01 Descriptive Statistics for Exploring Data.pdfSREDDINIRANJAN
 
Intro to statistics formatted (1)
Intro to statistics   formatted (1)Intro to statistics   formatted (1)
Intro to statistics formatted (1)Ulster BOCES
 
Intro to statistics formatted
Intro to statistics   formattedIntro to statistics   formatted
Intro to statistics formattedUlster BOCES
 
Understanding Malaysian Health Statistics
Understanding Malaysian Health StatisticsUnderstanding Malaysian Health Statistics
Understanding Malaysian Health StatisticsAzmi Mohd Tamil
 
Quantifying Disease Occurrence
Quantifying Disease OccurrenceQuantifying Disease Occurrence
Quantifying Disease OccurrencePerez Eric
 
COVID-19 Analysis: July 24, 2020
COVID-19 Analysis: July 24, 2020COVID-19 Analysis: July 24, 2020
COVID-19 Analysis: July 24, 2020Steve Shafer
 
Analyzing data in health care Dr.Majdi
Analyzing data in health care Dr.MajdiAnalyzing data in health care Dr.Majdi
Analyzing data in health care Dr.MajdiDr. Majdi Al Jasim
 
COVID-19 Update (Summary): September 11, 2020
COVID-19 Update (Summary): September 11, 2020COVID-19 Update (Summary): September 11, 2020
COVID-19 Update (Summary): September 11, 2020Steve Shafer
 
ECO 375–Homework 2University of TorontoDue 17 Novembe.docx
ECO 375–Homework 2University of TorontoDue 17 Novembe.docxECO 375–Homework 2University of TorontoDue 17 Novembe.docx
ECO 375–Homework 2University of TorontoDue 17 Novembe.docxmadlynplamondon
 
Modeling Texting and Driving as an epidemic
Modeling Texting and Driving as an epidemicModeling Texting and Driving as an epidemic
Modeling Texting and Driving as an epidemicJeffMellon1
 
0Principles of EpidemiologyMEASURES OF DISEASE OCCURRENCE IN POPUL.docx
0Principles of EpidemiologyMEASURES OF DISEASE OCCURRENCE IN POPUL.docx0Principles of EpidemiologyMEASURES OF DISEASE OCCURRENCE IN POPUL.docx
0Principles of EpidemiologyMEASURES OF DISEASE OCCURRENCE IN POPUL.docxhoney725342
 

Ähnlich wie Pbh 321 m2 a1 measuring disease/tutorialoutlet (20)

Malimu measures of disease frequency
Malimu measures of disease frequencyMalimu measures of disease frequency
Malimu measures of disease frequency
 
2.epidemilogic measures
2.epidemilogic measures2.epidemilogic measures
2.epidemilogic measures
 
03 incidence preval
03 incidence preval03 incidence preval
03 incidence preval
 
assignment of statistics 2.pdf
assignment of statistics 2.pdfassignment of statistics 2.pdf
assignment of statistics 2.pdf
 
CalculationsProblem #1 Fill in the blank spaces in the c.docx
CalculationsProblem #1 Fill in the blank spaces in the c.docxCalculationsProblem #1 Fill in the blank spaces in the c.docx
CalculationsProblem #1 Fill in the blank spaces in the c.docx
 
Week 2 ppt
Week 2 pptWeek 2 ppt
Week 2 ppt
 
Preparing for armageddon
Preparing for armageddonPreparing for armageddon
Preparing for armageddon
 
HEPATITIS A OUTBREAK INVESTIGATIONYou are a member of the Hepati
HEPATITIS A OUTBREAK INVESTIGATIONYou are a member of the HepatiHEPATITIS A OUTBREAK INVESTIGATIONYou are a member of the Hepati
HEPATITIS A OUTBREAK INVESTIGATIONYou are a member of the Hepati
 
EPI_-_EPIDEMIOLOGIC_MEASURES in public health .pptx
EPI_-_EPIDEMIOLOGIC_MEASURES  in public health .pptxEPI_-_EPIDEMIOLOGIC_MEASURES  in public health .pptx
EPI_-_EPIDEMIOLOGIC_MEASURES in public health .pptx
 
01 Descriptive Statistics for Exploring Data.pdf
01 Descriptive Statistics for Exploring Data.pdf01 Descriptive Statistics for Exploring Data.pdf
01 Descriptive Statistics for Exploring Data.pdf
 
Intro to statistics formatted (1)
Intro to statistics   formatted (1)Intro to statistics   formatted (1)
Intro to statistics formatted (1)
 
Intro to statistics formatted
Intro to statistics   formattedIntro to statistics   formatted
Intro to statistics formatted
 
Understanding Malaysian Health Statistics
Understanding Malaysian Health StatisticsUnderstanding Malaysian Health Statistics
Understanding Malaysian Health Statistics
 
Quantifying Disease Occurrence
Quantifying Disease OccurrenceQuantifying Disease Occurrence
Quantifying Disease Occurrence
 
COVID-19 Analysis: July 24, 2020
COVID-19 Analysis: July 24, 2020COVID-19 Analysis: July 24, 2020
COVID-19 Analysis: July 24, 2020
 
Analyzing data in health care Dr.Majdi
Analyzing data in health care Dr.MajdiAnalyzing data in health care Dr.Majdi
Analyzing data in health care Dr.Majdi
 
COVID-19 Update (Summary): September 11, 2020
COVID-19 Update (Summary): September 11, 2020COVID-19 Update (Summary): September 11, 2020
COVID-19 Update (Summary): September 11, 2020
 
ECO 375–Homework 2University of TorontoDue 17 Novembe.docx
ECO 375–Homework 2University of TorontoDue 17 Novembe.docxECO 375–Homework 2University of TorontoDue 17 Novembe.docx
ECO 375–Homework 2University of TorontoDue 17 Novembe.docx
 
Modeling Texting and Driving as an epidemic
Modeling Texting and Driving as an epidemicModeling Texting and Driving as an epidemic
Modeling Texting and Driving as an epidemic
 
0Principles of EpidemiologyMEASURES OF DISEASE OCCURRENCE IN POPUL.docx
0Principles of EpidemiologyMEASURES OF DISEASE OCCURRENCE IN POPUL.docx0Principles of EpidemiologyMEASURES OF DISEASE OCCURRENCE IN POPUL.docx
0Principles of EpidemiologyMEASURES OF DISEASE OCCURRENCE IN POPUL.docx
 

Kürzlich hochgeladen

Activity 01 - Artificial Culture (1).pdf
Activity 01 - Artificial Culture (1).pdfActivity 01 - Artificial Culture (1).pdf
Activity 01 - Artificial Culture (1).pdfciinovamais
 
Unit-IV; Professional Sales Representative (PSR).pptx
Unit-IV; Professional Sales Representative (PSR).pptxUnit-IV; Professional Sales Representative (PSR).pptx
Unit-IV; Professional Sales Representative (PSR).pptxVishalSingh1417
 
Introduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The BasicsIntroduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The BasicsTechSoup
 
Web & Social Media Analytics Previous Year Question Paper.pdf
Web & Social Media Analytics Previous Year Question Paper.pdfWeb & Social Media Analytics Previous Year Question Paper.pdf
Web & Social Media Analytics Previous Year Question Paper.pdfJayanti Pande
 
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...Shubhangi Sonawane
 
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptxBasic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptxDenish Jangid
 
Python Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxPython Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxRamakrishna Reddy Bijjam
 
How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17Celine George
 
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...Nguyen Thanh Tu Collection
 
Measures of Central Tendency: Mean, Median and Mode
Measures of Central Tendency: Mean, Median and ModeMeasures of Central Tendency: Mean, Median and Mode
Measures of Central Tendency: Mean, Median and ModeThiyagu K
 
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-II
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-IIFood Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-II
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-IIShubhangi Sonawane
 
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptxMaritesTamaniVerdade
 
psychiatric nursing HISTORY COLLECTION .docx
psychiatric  nursing HISTORY  COLLECTION  .docxpsychiatric  nursing HISTORY  COLLECTION  .docx
psychiatric nursing HISTORY COLLECTION .docxPoojaSen20
 
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural ResourcesEnergy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural ResourcesShubhangi Sonawane
 
Seal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxSeal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxnegromaestrong
 
ICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxAreebaZafar22
 
Mixin Classes in Odoo 17 How to Extend Models Using Mixin Classes
Mixin Classes in Odoo 17  How to Extend Models Using Mixin ClassesMixin Classes in Odoo 17  How to Extend Models Using Mixin Classes
Mixin Classes in Odoo 17 How to Extend Models Using Mixin ClassesCeline George
 
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...christianmathematics
 
Key note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdfKey note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdfAdmir Softic
 

Kürzlich hochgeladen (20)

Activity 01 - Artificial Culture (1).pdf
Activity 01 - Artificial Culture (1).pdfActivity 01 - Artificial Culture (1).pdf
Activity 01 - Artificial Culture (1).pdf
 
Unit-IV; Professional Sales Representative (PSR).pptx
Unit-IV; Professional Sales Representative (PSR).pptxUnit-IV; Professional Sales Representative (PSR).pptx
Unit-IV; Professional Sales Representative (PSR).pptx
 
Introduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The BasicsIntroduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The Basics
 
Web & Social Media Analytics Previous Year Question Paper.pdf
Web & Social Media Analytics Previous Year Question Paper.pdfWeb & Social Media Analytics Previous Year Question Paper.pdf
Web & Social Media Analytics Previous Year Question Paper.pdf
 
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
 
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptxBasic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
 
Python Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxPython Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docx
 
How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17
 
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
 
Measures of Central Tendency: Mean, Median and Mode
Measures of Central Tendency: Mean, Median and ModeMeasures of Central Tendency: Mean, Median and Mode
Measures of Central Tendency: Mean, Median and Mode
 
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-II
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-IIFood Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-II
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-II
 
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
 
Asian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptxAsian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptx
 
psychiatric nursing HISTORY COLLECTION .docx
psychiatric  nursing HISTORY  COLLECTION  .docxpsychiatric  nursing HISTORY  COLLECTION  .docx
psychiatric nursing HISTORY COLLECTION .docx
 
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural ResourcesEnergy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
Energy Resources. ( B. Pharmacy, 1st Year, Sem-II) Natural Resources
 
Seal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxSeal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptx
 
ICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptx
 
Mixin Classes in Odoo 17 How to Extend Models Using Mixin Classes
Mixin Classes in Odoo 17  How to Extend Models Using Mixin ClassesMixin Classes in Odoo 17  How to Extend Models Using Mixin Classes
Mixin Classes in Odoo 17 How to Extend Models Using Mixin Classes
 
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
 
Key note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdfKey note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdf
 

Pbh 321 m2 a1 measuring disease/tutorialoutlet

  • 1. PBH 321 M2A1: Measuring Disease FOR MORE CLASSES VISIT tutorialoutletdotcom PBH 321 M2A1: Measuring Disease Occurrence - Applying Math Concepts Introduction By the end of this activity, you will be able to recognize the utility of each measure of occurrence applied in epidemiology for presenting specific types of information in a meaningful way, and be able to calculate measures of disease occurrence. Instructions Before answering the below questions, read the required pages in your text, and review the module notes. For all questions that require computation, show your calculations, round to the nearest 10 th degree, and use an appropriate multiplier, where necessary. Here is an example showing your calculations, rounding to the nearest 10 th degree, and using a multiplier. Example question: There were 25 new cases of disease A out of 1,097 people at risk. What is the incidence rate of disease A per 100,000 people? Answer:
  • 2. 25/1,097*100,000 = 2,278.9 per 100,000 In this answer, *100,000 is the “multiplier” and the .9 in the number 2,278.9 is the “10 th degree.” Make sure to save your worksheet to your computer before entering answers. After you have completed your worksheet, return to the course assignment and follow instructions there to upload and submit it. For the first set of questions, you will explore Dengue in Puerto Rico Dengue is an emerging disease that “is transmitted between people by the mosquitoes Aedes aegypt and Aedes albopictus, which are found throughout the world” (Transmission of the Dengue Virus). The case fatality rate is 10%, and is currently the leading cause of illness and death in the tropics and subtropics. Let’s pretend that the numbers below represent new cases of Dengue in San Juan, Puerto Rico in 2009. San Juan, 2009 Jan. Number of 75 new cases Population 2,202 at risk Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. 80 81 79 80 84 225 219 220 210 215 68 2,210 2,101 2,118 2,101 2,200 2,180 2,175 2,195 2,145 2,119 2,187 Using the table above, please answer the following questions. Place your answer in the area below each
  • 3. question (all answer entry boxes expand to accommodate your text). 1) Given that there were 81 new cases in March, what was the incidence rate per 1,000 people in March? Click or tap here to enter text. 2) Given that there were 219 new cases in August, what was the incidence rate per 1,000 people in August? Click or tap here to enter text. 3) What might you suggest is the reason for the difference between March and August in terms of the incidence rate? (1-3 sentences) Click or tap here to enter text. PBH 321 M2A1: Measuring Disease Occurrence - Applying Math Concepts In late 2009, a major campaign was launched in San Juan, Puerto Rico encouraging residents to minimize standing water (where mosquitos breed). To see if the initiative had an impact, it was decided that a comparison of cases would be made between San Juan (where the campaign was launched), and Ponce (where no campaign was launched). Let’s imagine the numbers below represent the new cases of Dengue in 2010 in San Juan and Ponce, Puerto Rico. San Juan, 2010 Jan. Number of 75 new cases Population 2,204
  • 4. at risk Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. 80 80 79 80 84 120 118 120 111 105 68 2,212 2,113 2,204 2,111 2,159 2,170 2,180 2,200 2,122 2,129 2,200 Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. 5 4 4 5 5 11 10 11 10 11 8 104 103 108 104 105 108 106 105 104 101 104 Ponce, 2010 Jan. Number of 4 new cases Population 105 at risk 4) Given that there were 80 new cases in March in San Juan, and 4 in Ponce, what was the incidence rate per 1,000 people in March in San Juan? In Ponce? Click or tap here to enter text. 5) Given that there were 118 new cases in August in San Juan, and 10 in Ponce, what was the incidence rate per 1,000 people in August in San Juan? In Ponce? Click or tap here to enter text. 6) Given these numbers what recommendation would you make about continuing the campaign in future years, and expanding the campaign to other areas? Would you use the number of cases, or the incidence rate to support your recommendation? Explain your answer in 2-5 sentences. Click or tap here to enter text. For the next question, you will be asked to explore lung cancer in a highly populated city in the United States
  • 5. In 2010, the prevalence of lung cancer in a suburb outside of Chicago was 3.0%. In 2011, ************************************************
  • 6. In 2010, the prevalence of lung cancer in a suburb outside of Chicago was 3.0%. In 2011, ************************************************