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341. Methods Guide for Medical Test Reviews Chapter 12 (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-prognostic_methods.pdf
     July 01, 2012 - tests do not necessarily address the most important questions about prognostic tests that are used … tests, are appropriate topics for systematic reviews. … These are commonly known as predictive tests. … In contrast to diagnostic tests, many prognostic tests are incorporated into multivariable regression … Many studies of prognostic tests do not provide this ultimate evidence.

342. Psn-Pdf (pdf file)
     psnet.ahrq.gov/node/37307/psn-pdf
     January 04, 2012 - Diagnostic errors and abnormal diagnostic tests lost to follow-up: a source of needless waste and delay … Diagnostic errors and abnormal diagnostic tests lost to follow-up: a source of needless waste and delay … https://psnet.ahrq.gov/issue/diagnostic-errors-and-abnormal-diagnostic-tests-lost-follow-source-needless … https://psnet.ahrq.gov/issue/diagnostic-errors-and-abnormal-diagnostic-tests-lost-follow-source-needless-waste-and-delay … https://psnet.ahrq.gov/issue/diagnostic-errors-and-abnormal-diagnostic-tests-lost-follow-source-needless-waste-and-delay

343. Embedding guidelines into direct physician order entry: simple methods, powerful results | AHRQ Digital Healthcare Research: Informing Improvement in Care Quality, Safety, and Efficiency
     digital.ahrq.gov/health-it-tools-and-resources/health-it-costs-and-benefits-database/embedding-guidelines-direct
     January 01, 1999 - Evaluation Method:  Measures of ordering tests or medications, and tests conforming to guideline indications … Description:  Through the use of the CPR, clinicians electronically order laboratory tests, radiology … tests, and prescriptions. … Healthcare Utilization:  The number of upper-GI radiology tests ordered after the implementation of the … Quality of Care and Patient Safety Outcome:  The percent of upper-GI radiology tests that conformed to

344. Computerized display of past test results. Effect on outpatient testing | AHRQ Digital Healthcare Research: Informing Improvement in Care Quality, Safety, and Efficiency
     digital.ahrq.gov/health-it-tools-and-resources/health-it-costs-and-benefits-database/computerized-display-past-test
     October 01, 1987 - Purpose of Study:  To determine the effect of displaying previous results of diagnostic tests on the … ordering of selected outpatient tests. … Outcomes:  Rates of test-ordering for 8 selected tests Summary: Settings:  General Medicine Clinic at …   Regenstrief Medical Record System Healthcare Utilization:  Significant reduction in the number of tests … and charges for tests before vs. after the intervention.

345. Additional Patient Outcomes and Alternative Pathways in Evaluations of Testing | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/outcomes-testing-evaluation/research
     January 01, 2019 - based on an understanding of how tests can benefit or harm patients. … and so should tests already in use when doubts exist about their value. … to undergoing other tests or no testing at all. … This requires an understanding of how tests can affect patient outcome. … Various randomized designs can be used to evaluate medical tests.

346. Methods Guide for Medical Test Reviews Chapter 4 (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-search_methods.pdf
     July 01, 2012 - Reviews Chapter 4 4-1 Chapter 4 Effective Search Strategies for Systematic Reviews of Medical Tests … When a review focuses on specific named tests, searching is relatively straightforward. … The FDA regulates many medical tests as devices. … ,26 all possible diagnostic tests were not known. … Effective Search Strategies for Systematic Reviews of Medical Tests.

347. Nass Summary Stats Hospital 2021 (pdf file)
     hcup-us.ahrq.gov/db/nation/nass/stats/nass_summary_stats_hospital_2021.pdf
     January 01, 2021 - 0.51010 Median 1.375041 Variance 0.26021 Mode 1.375041 Range 3.37024 Interquartile Range 0.45464 Tests … 292405 Median 168121.6 Variance 8.5501E10 Mode 144826.2 Range 1123827 Interquartile Range 329715 Tests … 88.11045 Median 98.0000 Variance 7763 Mode 368.0000 Range 357.00000 Interquartile Range 62.00000 Tests … Tests for Location: Mu0=0 Test Statistic p Value Student's t t 41.95557 Pr > |t| <.0001 Sign M 1440.5 … Moments Basic Measures of Location and Variability Tests For Location Quantiles

348. Nass Summary Stats Hospital 2022 (pdf file)
     hcup-us.ahrq.gov/db/nation/nass/stats/NASS_Summary_Stats_Hospital_2022.pdf
     January 01, 2022 - 0.52093 Median 1.356040 Variance 0.27137 Mode 1.290298 Range 3.03676 Interquartile Range 0.49259 Tests … 264541 Median 118613.0 Variance 6.9982E10 Mode 115823.0 Range 1143599 Interquartile Range 223913 Tests … 70.76529 Median 71.0000 Variance 5008 Mode 274.0000 Range 264.00000 Interquartile Range 60.00000 Tests … Table 1 The Univariate Procedure DISCWT Moments Basic Measures of Location and Variability Tests … Moments Basic Measures of Location and Variability Tests For Location Quantiles

349. Nass Summary Stats Hospital 2020 (pdf file)
     hcup-us.ahrq.gov/db/nation/nass/stats/nass_summary_stats_hospital_2020.pdf
     January 01, 2020 - 0.49715 Median 1.380123 Variance 0.24716 Mode 1.387088 Range 3.34594 Interquartile Range 0.43470 Tests … 232804 Median 148487.2 Variance 5.41977E10 Mode 123524.4 Range 970780 Interquartile Range 244539 Tests … 210070 Median 106548.0 Variance 4.41292E10 Mode 89053.0 Range 941635 Interquartile Range 198326 Tests … Tests for Location: Mu0=0 Test Statistic p Value Student's t t 43.09062 Pr > |t| <.0001 Sign M 1449.5 … Moments Basic Measures of Location and Variability Tests For Location Quantiles

350. Final Research Plan: Preeclampsia: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-research-plan109/preeclampsia-screening
     August 14, 2014 - used, timing of tests, rescreen intervals) or preeclampsia risk status? … How effectively do screening tests (e.g., blood pressure, proteinuria) identify women with preeclampsia … How accurate are different screening tests for proteinuria? … How effective are different screening protocols (e.g., instruments, test procedures, timing of tests, … For women without proteinuria who have hypertension in pregnancy, what other screening tests should be

351. Archived: Final Research Plan: Preeclampsia: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-research-plan109/preeclampsia-screening-april-2017
     August 14, 2014 - used, timing of tests, rescreen intervals) or preeclampsia risk status? … How effectively do screening tests (e.g., blood pressure, proteinuria) identify women with preeclampsia … How accurate are different screening tests for proteinuria? … How effective are different screening protocols (e.g., instruments, test procedures, timing of tests, … For women without proteinuria who have hypertension in pregnancy, what other screening tests should be

352. Methods Guide for Medical Test Reviews (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-metaanalysis_methods.pdf
     July 01, 2012 - or suggestive thresholds, such as imaging or histological tests. … Table 8–1 lists commonly used methods for meta-analysis of medical tests. … Empirical evidence of design-related bias in studies of diagnostic tests. … Guidelines for meta-analyses evaluating diagnostic tests. … Diagnostic tests 4: likelihood ratios. BMJ 2004; 329(7458):168- 169. 23.

353. Methods Guide for Medical Test Reviews (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-bias_methods.pdf
     July 01, 2012 - Introduction Medical tests are indispensable for clinicians in that they provide information that goes … referred to as the General Methods Guide),1 and focuses on issues of particular relevance to medical tests … , clinical examinations, imaging tests, questionnaires, pathology, and measures of health status (e.g … Cochrane Methods Working Group on Systematic Review of Screening and Diagnostic Tests. … Empirical evidence of design-related bias in studies of diagnostic tests.

354. Appendicitis Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/appendicitis_executive.pdf
     December 01, 2015 - selected laboratory tests. … tests. … Among laboratory tests, white blood cell count, 15 C-reactive protein, and tests derived from combinations … that the results of earlier tests determine the choice of subsequent tests). … Comparative studies are needed for all tests and all populations.

355. Appendicitis Executive (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/appendicitis_executive.pdf
     December 01, 2015 - selected laboratory tests. … tests. … Among laboratory tests, white blood cell count, 15 C-reactive protein, and tests derived from combinations … that the results of earlier tests determine the choice of subsequent tests). … Comparative studies are needed for all tests and all populations.

356. Psn-Pdf (pdf file)
     psnet.ahrq.gov/node/46429/psn-pdf
     October 04, 2017 - Clinician perspectives on the management of abnormal subcritical tests in an urban academic safety-net … Clinician Perspectives on the Management of Abnormal Subcritical Tests in an Urban Academic Safety-Net … https://psnet.ahrq.gov/issue/clinician-perspectives-management-abnormal-subcritical-tests-urban- academic-safety-net-health … https://psnet.ahrq.gov/issue/clinician-perspectives-management-abnormal-subcritical-tests-urban-academic-safety-net-health … https://psnet.ahrq.gov/issue/clinician-perspectives-management-abnormal-subcritical-tests-urban-academic-safety-net-health

357. Recommendation: Colorectal Cancer: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/recommendation/colorectal-cancer-screening
     May 18, 2021 - Several recommended screening tests are available. … The USPSTF recommendation for screening for colorectal cancer does not include serum tests, urine tests … Screening Tests The risks and benefits of different screening tests vary. … , urine tests, or capsule endoscopy for colorectal cancer screening. … Stool-Based Tests Stool-based tests include the high-sensitivity guaiac fecal occult blood test (gFOBT

358. Appendix-Table-B-1-Observational-Studies (xls file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/appendix-table-B-1-observational-studies.xlsx
     March 20, 2021 - PCR (viral genome sequencing of a subset) Positive: 1.9 tests per-person; 0.5 tests per-person after … first Ab+ test Negative:1.7 tests per-person; 0.9 tests per-person after first Ab+ test 0.5 Any (% … during second surge (%) Positive 0 tests: 3,525 (32) 1 test: 2,426 (22) 2–3 tests: 2,719 (25) 4+ tests … : 2,398 (22) Negative 0 tests: 124,165 (24) 1 test: 117,711 (23); 2–3 tests: 154,359 (30) 4+ tests: 118,036 … occurring in the positive cohort ≥90 days after primary PCR+ test PCR Tests per 10,000 days at risk

359. Appendix-Table-B-1-Observational-Studies (xls file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/appendix-table-B-1-observational-studies.xlsx
     March 20, 2021 - PCR (viral genome sequencing of a subset) Positive: 1.9 tests per-person; 0.5 tests per-person after … first Ab+ test Negative:1.7 tests per-person; 0.9 tests per-person after first Ab+ test 0.5 Any (% … during second surge (%) Positive 0 tests: 3,525 (32) 1 test: 2,426 (22) 2–3 tests: 2,719 (25) 4+ tests … : 2,398 (22) Negative 0 tests: 124,165 (24) 1 test: 117,711 (23); 2–3 tests: 154,359 (30) 4+ tests: 118,036 … occurring in the positive cohort ≥90 days after primary PCR+ test PCR Tests per 10,000 days at risk

360. Noninvasive Testing for Coronary Artery Disease (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/coronary-artery-disease-testing_research-protocol.pdf
     January 15, 2015 - Noninvasive diagnostic tests can be broadly divided into two categories: functional tests and anatomic … tests. … What is the comparative effectiveness of anatomic tests versus functional tests in those who are at … What is the comparative effectiveness of anatomic tests versus functional tests in those who are at … o Anatomic tests: coronary calcium scoring via EBCT or MDCT, and CCTA o Functional tests (including