Objective:to evaluate the accuracy of the defining characteristics of the NANDA
International nursing diagnosis, noncompliance, in people with HIV. Method:study of diagnostic accuracy, performed in two stages. In the first stage, 113
people with HIV from a hospital of infectious diseases in the Northeast of Brazil
were assessed for identification of clinical indicators of noncompliance. In the
second, the defining characteristics were evaluated by six specialist nurses,
analyzing the presence or absence of the diagnosis. For accuracy of the clinical
indicators, the specificity, sensitivity, predictive values and likelihood ratios
were measured. Results:the presence of the noncompliance diagnosis was shown in 69% (n=78) of people with
HIV. The most sensitive indicator was, missing of appointments (OR: 28.93, 95% CI:
1.112-2.126, p = 0.002). On the other hand, nonadherence behavior (OR: 15.00, 95%
CI: 1.829-3.981, p = 0.001) and failure to meet outcomes (OR: 13.41; 95% CI:
1.272-2.508; P = 0.003) achieved higher specificity. Conclusion:the most accurate defining characteristics were nonadherence behavior, missing of
appointments, and failure to meet outcomes. Thus, in the presence of these, the
nurse can identify, with greater security, the diagnosis studied.