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Statistical process control for health care / Marilyn K. Hart, Robert F. Hart.

Holman Biotech Commons RA399.A1 H37 2002
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Format:
Book
Author/Creator:
Hart, Marilyn K., 1951-
Contributor:
Hart, Robert F., 1930-
Anne and Joseph Trachtman Memorial Book Fund.
Series:
Duxbury applied series
Language:
English
Subjects (All):
Medical care--Quality control--Statistical methods.
Medical care.
Health facilities--Evaluation--Statistical methods.
Health facilities.
Quality Assurance, Health Care.
Data Interpretation, Statistical.
Medical care--Quality control.
Medical Subjects:
Quality Assurance, Health Care.
Data Interpretation, Statistical.
Physical Description:
ix, 343 pages : illustrations ; 24 cm.
Place of Publication:
Australia ; Pacific Grove, CA : Duxbury/Thomson Learning, [2002]
Summary:
This book teaches and illustrates the use of SPC (Statistical Process Control) techniques for healthcare professionals. SPC techniques allow these professionals to properly extract information from healthcare data, make intelligent decisions based on statistical data, and know if the data has been presented in an appropriate manner. Using a case study approach, the authors present the theory, computations (hand and computer), and application (case study) for each concept. In recent years, SPC has been proven effective in improving the quality of health care, just as it has in other service industries and in manufacturing.
Contents:
Understanding Variation 2
Process Improvement 4
Judging Whether a State of Control May Be Inferred 5
Quality Improvement Tools 6
Tally Sheet 6
Pareto Chart 6
Cause-and-Effect Diagram 7
Flowchart 8
Run Chart, Histogram, Probability Plot, and Control Chart 10
Affinity Diagram 10
Other Quality Improvement Tools 10
Types of Data 11
Chapter 2 Variables Data: Basics of Statistics and Graphs 15
Population versus Sample 15
Average 15
Measures of Variation: Range 16
Measures of Variation: Standard Deviation 17
The Normal Distribution 21
Near-Normal Distributions 22
Histogram 23
Probability Plot 27
Making the Probability Plot 29
Shape of the Distribution 30
Chapter 3 The Run Chart for Time-Ordered Variables Data 45
The Simplest SPC Chart: The Run Chart 45
Time-Ordered Analysis and Single-Stream Processes 46
Historical Analyses and Ongoing Process Monitoring: No Standard Given and Standard Given 46
Use of a Run Chart 47
The Interrupted Run Chart 50
Run Charts with Other Types of Data 50
Chapter 4 Control Chart Theory and the I Chart for Time-Ordered Data 57
Theory Applicable to All Control Charts 57
Variables Control Charts 59
"T-Sigma Limits" versus 3-sigma Limits 59
Use of the I Chart 61
The I Chart for Process Improvement 63
Process Improvement: Test for Results That May Suggest Nonrandom Influence 64
The I Chart to Judge Whether a State of Control May Be Inferred 70
Standard Given 70
The Interrupted I Chart 74
The I Chart with Other Types of Data 76
Case Study 4.1 Monitoring Blood Pressure Measurements for an Individual Patient 86
Chapter 5 The Xbar and s Chart 95
The Xbar and s Chart with Time-Ordered Data 95
Calculations for the Xbar and s Chart: 3-Sigma Control Limits and Constant n 96
Tests for Nonrandom Influence 97
Standard Given 98
The Xbar and s Chart with Rational Subgroups 101
Tests for Lack of Control 108
How Not to Make Comparisons 108
Representations of Out-of-Control Conditions 110
Xbar and s Chart Comparanded to the Analysis of Variance 112
Case Study 5.1 Turnaround Times for CBCs 122
Chapter 6 Process Capability 131
Introduction to Process Capability Estimates 131
Process Capability from a Straight-Line Probability Plot 134
Process Capability from a Smooth Curve Probability Plot 137
Population Distributions and Their Probability Plots 144
Decreasing Variability 147
Case Study 6.1 Surgery Time 150
Chapter 7 Using Attribute Data: The c Chart and the u Chart 157
Using Attribute Data 157
The c Chart 158
The u Chart 161
Standard Given 166
Criteria for Evidence of Nonrandom Influence 167
Case Study 7.1 Decreasing Anesthesia Narcotics Discrepancies 174
Case Study 7.2 Missing Medications: New Pathway Improvement 178
Case Study 7.3 Patient Falls 183
Chapter 8 Using Attribute Data: The p Chart 189
Attribute Data 189
The p Chart 190
Standard Given 192
Criteria for Evidence of Nonrandom Influence 198
p Chart Compared to Chi-Square Analysis 198
Case Study 8.1 C-Sections 214
Case Study 8.2 Decreasing the Medication Error Rate 229
Case Study 8.3 Acute Appendicitis: Ultrasound Predictive Errors 233
Case Study 8.4 Acute Appendicitis: Perforation Rates by Surgeon 238
Chapter 9 Transformations (An Advanced Topic) 243
The Need for Transformations 243
Rare Events 249
Case Study 9.1 Surgery Times: Transformations 252
Case Study 9.2 Decreasing the Nosocomial MRSA Infection Rate 259
Case Study 9.3 Reducing Surgical Site Infections 269
Case Study 9.4 Surgery Complications with New Cost Savings Pathway 274
Chapter 10 Guidelines for Making Control Charts Useful 285
Choice of Control Chart 285
Miscellaneous Gems 286
Case Study 10.1 Benchmarking Time to Extubation after CABG Surgery 289
Appendix 1 Tests for Evidence of Special-Cause Variation 301
Appendix 2 The Perils of Pooling 311
Appendix 3 Mathematical Relations of the Variables Control Limit Formulas 329.
Notes:
Includes bibliographical references (pages 337-339) and index.
Local Notes:
Acquired for the Penn Libraries with assistance from the Anne and Joseph Trachtman Memorial Book Fund.
ISBN:
053437865X
OCLC:
47863208

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