As a current or future health care administration leader, how will you decide which statistical test is most appropriate for the goal of monitoring, tracking, or overseeing operations in your health services organization?

Each statistical test is dependent on a given set of research parameters and expectations. As you have examined throughout this course, understanding why and when to use each statistical test is necessary in conducting the tests for process control and comparison. Thus, chi-square tests are useful for table data, ANOVA for a single quantitative dependent variable and categorical independent variables, and ANOM for analysis of mean differences. Regression modeling is useful for determining the influence of independent variables on a quantitative dependent variable.

5:36 PM A read.amazon.com C HEALTH CARE QUALITY MANAGEMENT; TOOLS AND A ... is the expected impact on total cholesterol? 10. End Result Hospital is examining their LOS for coronary artery bypass surgery (CABG). Using past research, they collected data on LOS, patient age, smoking, BMI, comorbidities, and hospital-acquired infections, Using the Chaptero9.xIs file under the Problem 09-10 tab, interpret adjusted Re, F, and the intercept. Which variables have a statistically significant relationship with LOS, and how do they affect LOS? References Armola R and Topp R, 2001, Variables that Discriminate Length of Stay and Readmission Within 30 Days for Heart Failure Patients, Lippincott's Case Management 6 (6): 246-255- Becker D, 2007, Do Hospitals Provide Lower Quality Care on Weekends?, Health Services Research 42 (4): 1589-1612. Cepero J, 2011, Differences Among Quality Improvement, Evidence-Based Practice, and Research, Journal of Neuroscience Nursing 43 (4): 230-232. Damberg C, Shortell S, Raube K, Gillies R, Rittenhouse D, Mccurdy R, Casalino L, and Adams J, 2010, Relationship Between Quality Improvement Processes and Clinical Performance, American Journal of Managed Care 16 (8): 601-606. Daniel W, 1999, Biostatistics: A Foundation for Analysis in the Health Sciences, 7t d., John Wiley and Sons, Inc., New York, NY. Ellwood PM, 1988, Shattuck Lecture-Outcomes Management: A Technology Patient Experience, New England Journal of Medicine 218 (22): 1510-1626 Scanned by CamScanner' ten4wee12"regime'; "low-intensity "is four weeks. Are outcomes different between the high- and low-intensity groups? WW '11 11 12 35 WW ............ H! ................. 17. .................... ? ............... 1.359.\". Tod 264 39 21 334 4. End Result Hospital wants to assess the effectiveness of diabetes education through A1c levels. The hospital has created three groups. In the control group no instruction is provided, in group two instruction is provided by physicians, and in the third group RNs provide instruction Are A1c levels different between groups? 5. End Result Hospital wants to assess different approaches to the control of cholesterol. Fifty-three patients are randoinly assigned to four groups: control, diet, exercise, and diet and exercise. is \"there\" any Scanned by CamScanner PROBLEMS 1. End Result Hospital has implemented a program to reduce the incidence of pressure ulcers. The table below shows the number of pressure ulcers observed before and after the program was implemented. Was the program successful? Pressure Ulcer No Pressure Uker Total Preimplementation 11 89 100 .. . .. Postimplementation 3 97 100 . . .. .. . Total 14 186 200 2. A second hospital has implemented the same pressure ulcer reduction program as End Result Hospital and observed the following results. Compare the two outcomes. If there are differences, what factors could explain the differences? Pressure Ulcer No Pressure Ulcer Total Preimplementation 8 92 100 Postimplementation 94 100 Total 14 186 200 3. End Result Hospital is examining the effect of high- and low-intensity rehabilitation for hip replacement patients. Patient mobility postreplacement is based on patient self-reports and is categorized as improved, no change, or diminished. High-intensity rehabilitation is a Scanned by CamScannerdifference between the four treatment options? What is your treatment recommendation? Diet and Control Diet Exercise Exercise 247.2 234.4 224. 173.0 172.2 167.0 195.1 131.0 .. . . . .. . . 188.4 2042 145.2 185.0 181.6 162.6 142.2 150.7 219. 164.9 238.6 163.2 .. .. . ... 221.8 148.5 192.3 152.1 . . .. . .....M. 188.0 236.0 174.3 128.6 . . . ........ 153.4 182.7 241.2 140.3 165.8 1587 226.2 210.7 226.4 174.6 193.8 162.8 . .. . . . .... 203.9 193.5 162.2 191.1 .. . ... ....... 248.1 217.5 156.5 132.0 . . .. . ; .. ... 161.5 220.6 192.8 159.5 194.7 6. The vice president of nursing services is concerned with the number of complaints her office has received concerning her nursing units. She has collected the following data. Do any of her departments have an excessive number of complaints? Unit Complaints Patient Days Medical 779 47250 Surgical 656 44550 Maternity 181 7650 Pediatrics 208 12825 ICU 396 19800 Psychiatric 375 18000 Scanned by CamScannerHEALTH CARE QUALITY MANAGEMENT : TOOLS AND A ... 7. The director of surgical services has decided to study the number of post-op complications for general surgeons. Do any surgeons have an excessive number of complications? MD Complications Patients 1 52 800 74 753 3 23 462 4 79 1125 15 68 1034 57 822 69 611 8 35 436 9 86 1348 152 1129 12 312 8. Using the ChooProblems.xls file under the Problem 09-08 tab, run a regression on number of cases (IV) and LOS (DV). Interpret Re, F, the IV coefficient and p- value, and the intercept. Describe the relationship between cases and LOS. 9. A physician wants to assess the potential causes of high cholesterol among her patients to tailor self-care instructions. She has collected data on total cholesterol, BMI, physical activity, age, gender, alcohol consumption, and stress. Use the Chaptero9.xls file under the Problem 09-09 tab. Which variables have a statistically significant relationship with total cholesterol? If BMI can be reduced by two points, what Scanned by CamScanner