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At least 163 records · Page 9Linked to original sources
PubMed2000

Comparing methods of clinical measurement: reporting standards for bland and altman analysis.

UNLABELLED: In this era of medical technology assessment and evidence-based medicine, evaluating new methods to measure physiologic variables is facilitated by standardization of reporting results. It has been proposed that assessing repeatability be followed by assessing agreement with an established technique. If the "limits of agreement" (mean bias +/- 2SD) are not clinically important, then one could use two measurements interchangeably. Generalizability to larger populations is facilitated by reporting confidence intervals. We identified 44 studies that compared methods of clinical measurement published during 1996 to 1998 in seven anesthesia journals. Although 42 of 44 (95.4%) used the limits of agreement methodology for analysis, several inadequacies and inconsistencies in reporting the results were noted. Limits of agreement were defined a priori in 7.1%, repeatability was evaluated in 21.4%, and relationship (pattern) between difference and average was evaluated in 7.1%. Only one of the articles reported confidence intervals. A computer macro for the Minitab statistical package (State College, PA) is described to facilitate reporting of Bland and Altman analysis with confidence intervals. We propose standardization of nomenclature in clinical measurement comparison studies. IMPLICATIONS: A literature review of anesthesia journals revealed several inadequacies and inconsistencies in statistical reports of results of comparison studies with regard to interchangeability of measurement methods. We encourage journal editors to evaluate submissions on this subject carefully to ensure that their readers can draw valid conclusions about the value of new technologies.

Anesthesiology↗
PubMed1998

Nursing Outcomes Classification implementation projects across the care continuum.

The health care environment in which nurses deliver care is experiencing constant change characterized by decreased lengths of stay in acute care settings, increased use of technology, increasing emphasis on computerized patient records and care planning options, increasing markets dominated by managed care, and an emphasis on outcomes rather than process. These changes dictate that nursing as a profession ensures that the work of nursing is visible in this health care environment and included in the data used to make health policy decisions. This article describes the rich history of a Midwestern hospital's use of standardized nursing languages for the last 25 years. Currently this facility is in the process of implementing the Nursing Outcomes Classification (NOC). Four projects are described that illustrate the ways nurses can use this language with diagnoses from the North American Nursing Diagnoses Association (NANDA) and interventions from the Nursing Interventions Classification (NIC).

Continuity of Patient Care↗
PubMed1997

Toward a broader definition of the age-of-onset criterion for attention-deficit hyperactivity disorder.

OBJECTIVE: To critique the age-of-onset criterion (AOC) for the diagnosis of attention-deficit hyperactivity disorder (ADHD). METHOD: The specific AOC of 7 years for symptoms producing impairment as part of the diagnostic criteria is examined from historical, empirical, conceptual, and pragmatic perspectives. RESULTS: No support could be found for the continued use of this criterion for either clinical or research diagnostic purposes. While both empirical and conceptual grounds exist for viewing ADHD as a disorder that typically has its onset of symptoms during childhood, no support exists for the selection of age 7 years for onset of a valid disorder, either for symptom onset or for onset of impairment. CONCLUSIONS: Several reasons favor dispensing with a precise AOC, either for symptom onset or onset of impairment, not the least of which is that it is scientifically indefensible, poses unwarranted practical problems for the study of older adolescents and adults, and may be arbitrarily discriminatory. Until such time as an empirical justification can be marshaled for a precise AOC for ADHD, the current AOC should be either abandoned or generously broadened to include onset of symptoms during the entire childhood years, in keeping with its conceptualization as a childhood-onset disorder.

Adolescent↗