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Qualitative Data summerization

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Tarekk Alazabee

This document discusses different measures for summarizing qualitative data: 1. Proportion is a number of observations with a characteristic divided by the total observations. It provides the percentage of observations with that characteristic. 2. Percentage is the proportion multiplied by 100 to provide a percentage value. 3. Ratio is a number of observations with a characteristic divided by observations without that characteristic, to compare groups. 4. Rate is similar to proportion but includes a multiplier like 1000 or 10,000 to standardize to a common population size over a specified time period.

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Learning Objective Identify and combute the different measures of qualitative data summarization At the end of this presentation, the participant will be able to:
Qualitative Data summerization
I. Proportion Definition: Is the number (a) of observations with a given characteristics (such having MI) divided by the total number of observation. Proportion =
EXAMPLE Male Female No of CVD Patients 60 60 Myocardial. I 5 3 Question: What is the proportion of an MI among Male Patients ?
The Proportion of an MI among Male Patients: 5 / 60 = 0.083 a a + b
A proportion: Is always defined as apart divided by the whole. Is useful for ordinal and numerical data as well as nominal data, especially when the observations have been placed in a frequency table.
5 33.3 6 40.0 4 26.7 15 100.0 Age Group 1 - 5 6 - 10 11 - 15 Total Frequency Percent Q: What is the proportion of Patients Aged between 6 and 10 years?
. Percentage Is the proportion multiplies by 100. Q: What is the Percentage of an MI among Male Patients ? Male Female No of CVD Patients 60 60 MI 5 3
(5 / 60) * 100 = 8.3 % The Percentage of an MI among Male Patients: MI
II. Ratio Is the number (a) of observations in a given group with a given characteristic ( such as having an MI) divided by the number (b) of observations without the given characteristic (such as not having MI) 悋惠悋愕惡
Q: Among Male patients: What is the ratio of those who had an MI to those who did not? Male Female No of CVD Patients 60 60 MI 5 3 EXAMPLE 悋惠悋愕惡
Male Female No of CVD Patients 60 60 MI 5 3 Without MI 55 57 The ratio of those who had an MI to those who did not for male patients: a b Ratio= 5 /55 = 0.09
+ 50 Without MI
Remember A ratio is always defined as a part divided by an other part.
III. Rate Are similar to proportion except that a multiplier (eg,1000, 10.000 or 100.000) is used, and they are computed over specified period of time. - The multiplier is called the base. Rate = X Base 悋惺惆
What is the Rate of MI per 1000 male patients in 2014 ? Male Female No of CVD Patients 60 60 MI 5 3 The admission number of CVD patients at Hospital A in 2014
0.083 X 1000 = 83 MI cases per 10.000 CVD admissions In 2014 Proportion Base Time
Qualitative Data summerization
Qualitative Data summerization

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Qualitative Data summerization

  • 2. Learning Objective Identify and combute the different measures of qualitative data summarization At the end of this presentation, the participant will be able to:
  • 4. I. Proportion Definition: Is the number (a) of observations with a given characteristics (such having MI) divided by the total number of observation. Proportion =
  • 5. EXAMPLE Male Female No of CVD Patients 60 60 Myocardial. I 5 3 Question: What is the proportion of an MI among Male Patients ?
  • 6. The Proportion of an MI among Male Patients: 5 / 60 = 0.083 a a + b
  • 7. A proportion: Is always defined as apart divided by the whole. Is useful for ordinal and numerical data as well as nominal data, especially when the observations have been placed in a frequency table.
  • 8. 5 33.3 6 40.0 4 26.7 15 100.0 Age Group 1 - 5 6 - 10 11 - 15 Total Frequency Percent Q: What is the proportion of Patients Aged between 6 and 10 years?
  • 9. . Percentage Is the proportion multiplies by 100. Q: What is the Percentage of an MI among Male Patients ? Male Female No of CVD Patients 60 60 MI 5 3
  • 10. (5 / 60) * 100 = 8.3 % The Percentage of an MI among Male Patients: MI
  • 11. II. Ratio Is the number (a) of observations in a given group with a given characteristic ( such as having an MI) divided by the number (b) of observations without the given characteristic (such as not having MI) 悋惠悋愕惡
  • 12. Q: Among Male patients: What is the ratio of those who had an MI to those who did not? Male Female No of CVD Patients 60 60 MI 5 3 EXAMPLE 悋惠悋愕惡
  • 13. Male Female No of CVD Patients 60 60 MI 5 3 Without MI 55 57 The ratio of those who had an MI to those who did not for male patients: a b Ratio= 5 /55 = 0.09
  • 15. Remember A ratio is always defined as a part divided by an other part.
  • 16. III. Rate Are similar to proportion except that a multiplier (eg,1000, 10.000 or 100.000) is used, and they are computed over specified period of time. - The multiplier is called the base. Rate = X Base 悋惺惆
  • 17. What is the Rate of MI per 1000 male patients in 2014 ? Male Female No of CVD Patients 60 60 MI 5 3 The admission number of CVD patients at Hospital A in 2014
  • 18. 0.083 X 1000 = 83 MI cases per 10.000 CVD admissions In 2014 Proportion Base Time