school of health sciences week 6! health care statistics fundamentals of health information hi 140...

School of Health Sciences

Week 6!Week 6!

Health Care StatisticsHealth Care Statistics

Fundamentals of Health Information HI 140

Instructor: Alisa Hayes, MSA, RHIA, CCRC

Class RemindersContact Information

AIM:AlisaCHayesEmail: [email protected]

Office HoursBy Appointment

Chat conversations during classPlease keep conversations focused on class. Type “pause” to comment and “?” to ask a question

School of Health Science

Chapter 1Statistical Terminology and Health Care Data

StatisticsCollection, organization, summarizing, and analysis of

numerical dataStatistical reports often refer to the “number of” an

event Analysis of statistical data is done to draw reasonable

decisions and conclusions about the dataHealth care statistics, employment statistics, vital

statistics




•Data are used to derive information•Data are facts in numerical form•Data are collected on:

-Inpatients, outpatients, emergency department patients, surgical patients, employees, encounters, and financials


Demographic data Used in:

In planning and disease controlBy hospital administrators to analyze the health care

service needs of their communities and service areasTo identify the geographic density of a given area such

as a county, city, suburb



Who may request data?Administration and Governing BoardMedical staffTreatment facilitiesOutside agencies and organizations Insurers/payersResearchersGovernment agencies



Data Uses Used in decision making for management and patient care decisions Patient care decisions include:

Hospital-acquired infections Medication errors Diagnosis-specific length of stay

Statistical reports: Example: Indices Birth Death Disease

Research: Treatment protocols



Users of DataInternal usersExternal users of data

Sources of DataPrimary data Secondary data



Role of Heath Information Management (HIM)Professionals collect, preserve, and present data in

health care facilitiesHIM practitioners require a basic understanding of

statistics HIM practitioners can assure accuracy of data in the data

collection process



• Statistical Terms• Population• Sample• Constant• Variable• Qualitative• Quantitative• Nominal Data• Ordinal Data• Descriptive statistics• Inferential statistics• Morbidity data • Mortality


Chapter 2Health Care Overview and Patient Data Collection

• Terms Encounter Occasion of service Visit

Health Care Settings Inpatient (IP) Outpatient (OP)

Health Care Providers Hospitals Long term care facilities

Skilled Nursing (SNF) Residential Care (RCF) Specialized facilities


Chapter 2Health Care Overview and Patient Data Collection

Two ways to collect data include: Concurrent

During hospitalization Retrospective

Following discharge Primary source

Medical record including physician notes, lab reports, surgical reports Secondary source

Abstracts, lists, indexes, registries Indexes

Computer generated list to locate information Master Patient Disease

Registries Repository of abstracted data

Cancer/tumor registry Trauma registry


Chapter 3Mathematical Review

An amount less than oneDigits to right of decimal point are decimal digitsDecimal point separates the fraction of the whole number from

the whole number itselfA percentage is the number of times something happens out of

every one hundred times It tells us how many hundredths are of interest

A percentage is a specific rate or ratio followed by the percent sign (%)

A percentage is a fraction expressed in hundredthsExample: ¾ = 0.75 = 75%



A fraction is aFragment of a numberPart of a wholeWritten as ¾

Numerator Number above the line

DenominatorNumber below the line

QuotientResult of dividing denominator into the numerator

Example: to determine the quotient using the fraction ¾ divide denominator into the numerator

3 divided by 4 is .75



An average is the value obtained by dividing the sum of a set of numbers by the number of values

An average is also referred to as the arithmetic mean to distinguish it from the median and modeThe average is the sum of all scores divided by the number of all

values involvedRounding approximates a total or final numberRounding data is done to arrive at a usable numberNumbers are rounded to the nearest 10, 100, etc.Rounding to the nearest ten means to round the number to the

nearest multiple of ten or 10, 20, 30, 40, etc.



Converting a fraction to percentage Divide the numerator by the denominator and multiply by 100

Converting a ratio to percentage: Divide the fraction Multiply the quotient by 100

Converting Decimal to Percentage Move the decimal point two places to the right of the decimal point and add the

percent sign Or multiply the decimal by 100

Converting Percentage to Decimal Cross out the percent sign and move the decimal point two places to the left of

the decimal point Example: 65% = .65

If the percentage is only one digit: Place a 0 in front of it and place the decimal point in front of the 0 Example: 5% = .05; 105% = 1.05



Converting Percentage to FractionCross out the percent sign and place the number in

the numeratorPlace 100 in the denominator

Example:45% converted to a fractionReplace the percent sign with 100

Write as a fraction = 45/100 Reduce to the lowest fraction = 9/20 45 and 100 can both be divided by 5 Therefore, the lowest fraction is 9/20


Current Week11/23/11-11/29/11

• Read chapter 1, 2, 3 in Koch textbook• Complete your discussion question

Assignment is: Complete practice testsTake Unit 6 Quiz


Next Week11/30/11-12/6/11Read Chapters 4, 5 & 6 in statistics textbookParticipate in DiscussionParticipate in SeminarComplete practice testsTake Unit 7 Quiz


school of health sciences week 6! health care statistics fundamentals of health information hi 140...

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