1. Elsevier items and derived items © 2007 by Saunders, an imprint of Elsevier Inc. Chapter 9 Statistics

2. Elsevier items and derived items © 2007 by Saunders, an imprint of Elsevier Inc. Slide 2 Organized Collection of Data Organized Collection of Data  Primary and Secondary Data  Data Set  Creation of a Database  Data Review and Abstracting  Data Quality Check

3. Elsevier items and derived items © 2007 by Saunders, an imprint of Elsevier Inc. Slide 3 Data Retrieval  Retrieval of Aggregate Data  Indices  Identification of a Population  Optimal Source of Data

4. Elsevier items and derived items © 2007 by Saunders, an imprint of Elsevier Inc. Slide 4 Reporting of Data  Reporting to Individual Departments  Reporting to Outside Agencies  Registries  Vital Statistics

5. Elsevier items and derived items © 2007 by Saunders, an imprint of Elsevier Inc. Slide 5 Statistical Analysis of Patient Information  Analysis and Interpretation  Mean  Median  Adjusted Mean  Mode  Frequency Distribution  Percentages

6. Elsevier items and derived items © 2007 by Saunders, an imprint of Elsevier Inc. Slide 6  Presentation  Bar Graph  Line Graph  Histogram  Pie Chart Statistical Analysis of Patient Information (cont.)

7. Elsevier items and derived items © 2007 by Saunders, an imprint of Elsevier Inc. Slide 7 Routine Institutional Statistics  Admissions  Discharges  Length of Stay  Average Length of Stay  Transfers  Census  Hospital Rates and Percentages