IJCS | Volume 33, Nº2, March / April 2020

171 Table 1 - Practicability assessment - Knowledge questionnaire on cardiac arrest and cardiopulmonary resuscitation Practicability assessment n % I found it easy to understand the instructions of the questionnaire (n = 100) Strongly agree 50 50.0 Slightly agree 33 33.0 I have no opinion about it 4 4.0 Slightly disagree 11 11.0 Strongly disagree 2 2.0 I found it easy to understand the questions in the questionnaire (n = 99) Strongly agree 49 49.5 Slightly agree 34 34.3 I have no opinion about it 3 3.0 Slightly disagree 11 11.1 Strongly disagree 2 2.0 I found it easy to mark the answers of the questionnaire (n = 99) Strongly agree 55 55.6 Slightly agree 29 29.3 I have no opinion about it 0 0.0 Slightly disagree 12 12.1 Strongly disagree 3 3.0 Table 2 - Prevalence of knowledge of Cardiac Arrest and Cardiopulmonary Resuscitation among health professionals Knowledge of Cardiopulmonary Arrest and Cardiopulmonary Resuscitation by Health Professionals (n = 100) n % Sufficient 22 22 Insufficient 78 78 Table 3 - Multivariate analysis of logistic regression type for Insufficient Knowledge of Cardiac Arrest 7 Variable Prevalence ratio CI (95%) p-value Professional category (n = 100) Doctor * Nurse 3.21 1.591 – 6.847 0.001 Nursing technician 2.98 1.470 – 6.426 0.003 Work shift (n = 100) Day and night service * On-call duty 3.05 0.630 – 0.904 0.005 Novaes Neto & Freitas Factors associated to knowledge of cardiac arrest Int J Cardiovasc Sci. 2020; 33(2):167-174 Original Article p = 0.73, demonstrating the goodness-of-fit of the final model. Discussion Developing and validating a data collection instrument based on the methodological aspects that guide this elaboration 8 constituted a primordial phase to ensure the correct measurement of the outcome variable. The development of the questionnaire focused on central issues related to the topic and, above all, it was focused on the main changes of the 2015 AHA guidelines. By validating the content of the instrument with judges and the participants themselves, while taking into account the indicators of clarity and pertinence, it was possible to achieve the necessary adequacy of the instrument in capturing what it proposes to measure, 8 in this case the knowledge of professionals on a specific topic. In addition, considering the dimensionality of the instrument, it can help professionals to identify the knowledge gaps, providing support for actions directed to fragility points that can be developed. The evaluation of knowledge about CA/CPR among medical, nursing, and life sciences undergraduate students, among others, has been the subject of scientific publications and, at the same time, reveals the insufficiency of knowledge in this area, corroborating with the results found in this study. 9–13 This is an important finding, since knowledge is considered the triggering factor for decision-making and behavior, essential to guarantee the subsidies of the conducted procedures in order to maintain the victim’s life. 14–15 Thus, the knowledge the professional possesses is a determinant factor in the survival of patients who are afflicted by CA. 10,16