The study was conducted between February and July 2018 in two large university hospitals and two private hospitals on the European side of Istanbul. These hospitals were chosen because they receive patients from all over Turkey, are considered to be highly representative and have a high patient density. The study was conducted in these four hospitals in Istanbul with a descriptive, cross-sectional and correlational design. The study population consisted of all physicians and nurses (N:197) actively working in the intensive care units of the four hospitals. In determining the sample of the study, the sample calculation with known population was utilized and it was calculated that at least 113 people should be included in the study with a 95% confidence interval and a 6% margin of error. One hundred thirteen physicians and nurses who met the study criteria and volunteered to participate were included in the sample.
Data Collection Tools
Data were collected using a personal information form, moral sensitivity questionnaire, nurses' knowledge level, attitudes and practices scale regarding physical restraints, Richmond sedation-agitation scale, and motor activity assessment scale.
Personal information form: It includes 12 questions, including socio-demographic characteristics, professional characteristics, ideas, and practices regarding physical restraint by the researchers in line with the literature (3, 4, 13).
Moral sensitivity questionnaire (MSQ): The questionnaire developed by Lutzen to assess ethical sensitivity and its validity and reliability made by Tosun is in a seven-point Likert style and includes 30 statements. The questionnaire has six sub-dimensions: autonomy (10,12,15, 16,21,24,27), beneficence (2,5,8,25), holistic approach (1,6,18,29,30), conflict (9,11,14), implementation (4,17,20,28) and orientation (7,13,19,22). The lowest score that can be obtained from the questionnaire is 30, and the highest score is 210. The higher the score, the lower the ethical sensitivity (14). In this study, Cronbach's alpha of the questionnaire was found to be 0.95.
Nurses' knowledge level, attitudes, and practices scale regarding physical restraints:The scale was developed by Suen and reliably validated by Kaya et al. In the first part, there are 11 items measuring nurses' knowledge about the use of physical restraints. Only one of the items in the section needs to be corrected; the correct answer is 1 point, and the incorrect answer is 0 points. The score that can be obtained from the section is between 0-11 points. The higher the score, the higher the level of knowledge. In the second section, there are 12 Likert-style items measuring nurses' attitudes towards using physical restraint. The score from the section is between 12-48 points. The higher the score, the more positive the attitude. In the third part, there are 14 Likert-type items evaluating the practices of nurses regarding the use of physical restraints. The score to be obtained from the section is between 14 and 42. The higher the score, the more appropriate the physical fixation (4, 15). In this study, Cronbach's alpha of the scale was 0.75.
Richmond Sedation and Agitation Scale (RASS): The aim of the scale developed by Cook and Palma (1989) and the validity and reliability of which was performed by Sılay and Akyol, is to determine the sedation and agitation states of severe patients, especially in mechanical ventilation (13). RASS is a valid and reliable scale that are frequently used to determine the sedation and agitation status of mechanically ventilated patients. The RASS is a 10-point scale with 4 levels (+4 to +1) indicating anxiety and agitation, 5 levels (-1 to -5) showing an unarousable state, and 1 level (0) indicating an awake state. Positive numerical values are designed for agitation, and negative numerical values are for sedation. In this study, Cronbach's alpha of the scale was 0.95.
Motor Activity Assessment Scale (MASS): It was developed by Devlin et al. to assess the level of sedation and agitation in intensive care patients. The scale helps to shorten the length of stay in the intensive care unit by reducing the possibility of patients on mechanical ventilation receiving high doses of sedative drugs. MASS, like RASS, is another valid and reliable scale that are frequently used to determine the sedation and agitation status of mechanically ventilated patients. The MASS is evaluated on a scale of 0 to 6 points: "0 points indicates a highly sedated patient", "1-2 points indicates a mildly sedated patient", "3 points indicates a calm and peaceful patient", and "4-6 points indicates a restless and agitated patient" (13, 16). In this study, Cronbach's alpha was 0.95.
Ethical approval
"Ethics Committee Approval" (Date: 26/02/2018, number no: 13) was obtained from the Non-Interventional Clinical Research Ethics Committee of a university in Istanbul, and institutional permission (Decision no: 222045, Date: 27.08.2018) was obtained from Istanbul Provincial Health Directorate. Informed consent was obtained from the pregnant women participating in the study, and the Declaration of Helsinki was followed.
Data analysis
The data obtained in the study were analyzed using the SPSS (Statistical Package for Social Sciences for Windows 22.0) program. Number, percentage, mean, and standard deviation were used as descriptive statistical methods to evaluate the data. In addition, the t-test, ANOVA test, Pearson correlation analysis, and Scheffe test were used as post hoc analyses.