Purpose: The aim of this study was to analyze the accuracy of the defining characteristics of ineffective breathing pattern (IBP) in postoperative cardiac patients.
Methods: A diagnostic accuracy study was performed with 98 patients. Measures of sensitivity, specificity, predictive values, likelihood ratios, diagnostic odds ratio, and area under the ROC curve were calculated.
Results: IBP was present in 23.5% of the patients. Alterations in depth of breathing (sensitivity 96%, negative likelihood ratio 0.11%) and pursed-lip breathing (sensitivity 99%, negative likelihood ratio 0.07%) were the most sensitive defining characteristics for IBP, while altered chest excursion (specificity 97%, positive likelihood ratio 11.41%) and prolonged expiration phase (specificity 99%, positive likelihood ratio 42.39%) were the most specific.
Conclusion: Some clinical indicators were more related to the presence or absence of IBP than others. Knowledge of such measures can help nurses to assess patients more accurately.
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