Staff Perceptions and Organizational Factors as Predictors of Seclusion and Restraint on Psychiatric Wards
Abstract
Objective:
Several factors have been shown to be involved in decisions to use seclusion and restraint in psychiatric inpatient settings. This study examined whether staff perceptions of factors related to the care team and violence on the ward predicted use of seclusion and restraint in psychiatric wards.
Methods:
A total of 309 staff members (nurses, rehabilitation instructors, and nurse's aides) providing care to patients with serious mental disorders were recruited from eight university psychiatric hospitals and general-hospital psychiatric units in the province of Quebec. Factors assessed included sociodemographic characteristics, psychological distress, staff perceptions of aggression and of interaction between members of the psychiatric team (team climate), and organizational factors.
Results:
Bivariate analyses showed that certain aspects of the team climate, staff perceptions of aggression, and organizational factors were associated with greater use of seclusion and restraint. The final multivariate model indicated that the following factors independently predicted greater use: type of hospital ward (emergency department and intensive care unit), staff perception of a higher level of expression of anger and aggression among team members, perception of the frequency of incidents of physical aggression against the self among patients, and perception of insufficient safety measures in the workplace.
Conclusions:
These findings represent the first stage of a research program aimed at reducing use of seclusion and restraint in psychiatric settings. They underscore the importance of evaluating a variety of factors, including perceptions of safety and violence, when examining reasons for use of these controversial interventions. (Psychiatric Services 62:484–491, 2011)
Robert Fleury's painting shows Philippe Pinel ordering the shackles removed from the inmates at the Bicêtre Asylum, sparking a revolution in the treatment of people with mental illness. Two hundred years later, the use of seclusion and restraint in psychiatry still raises concerns (1). Seclusion is considered a therapeutic measure to isolate individuals and limit their contacts with peers; seclusion with restraint involves the additional application of mechanical restraints.
Some professionals defend the use of such practices as a necessary intervention, because studies have shown that 16% of psychiatric inpatients demonstrate aggressive behavior during the first week of hospitalization and that 7% of persons with a mental disorder have perpetrated violence in the year after their diagnosis, compared with 2% in the general population (2). Aggressive behavior affects the physical and psychological health of psychiatric nursing staff (3) and leads to increased work absence due to illness and to low morale (4). After violent incidents, many staff victims remain fearful and report less satisfaction in their work (5).
The reported incidence of seclusion without restraint in psychiatric settings ranges from 4% to 44% among adults (6), and use of seclusion with restraints is reported to range from 4% (7) to 12% (8). For a variety of reasons, nearly 24% of all patients admitted to a psychiatric emergency department require restraint or a combination of seclusion and restraint (9). However, many staff members strongly object to the use of these interventions, regarding it as a violation of the patient's right to freedom and dignity (10). Staff members have reported experiencing shame and have expressed the fear that they are abusing a patient's rights when they must initiate a seclusion or restraint procedure (11). These interventions also lead patients to develop negative perceptions of the mental health facility, which weakens the therapeutic alliance and negatively affects treatment adherence (12). In addition, these procedures are associated with negative physical consequences for patients, including lacerations, asphyxiation, and even death (13). Some patients describe the experience of seclusion and restraint as similar to physical abuse and rape (14).
Studies conducted in the past decade have indicated that although a decision to use seclusion and restraint is based on rational needs, it may be influenced by a number of external factors, including the health care worker's psychological state and personal perceptions of violence, along with patient characteristics and organizational variables (15–17).
Several studies have assessed organizational and staff-level predictors of seclusion and restraint in psychiatric inpatient settings, either separately (16,18,19) or in combination (20–23). However, to our knowledge, no study has focused on staff members' perception of patient aggression as a predictor of the use of seclusion and restraint while also taking into account other important factors. The goal of this study was to identify the most accurate predictors of the use of seclusion and restraint on psychiatric wards. Use of these interventions has come under scrutiny in psychiatric treatment settings in the past few decades (24,25). The study reported here is therefore in line with a variety of initiatives to reduce the use of seclusion and restraint.
Methods
Participants
A total of 309 staff members (nurses, rehabilitation instructors, and nurse's aides) were recruited from eight university-affiliated hospitals in the province of Quebec. They included one general psychiatric hospital (N=59 participants), one forensic hospital (N=67), three psychiatric departments of general teaching hospitals (N=114), and three suburban hospitals (N=69). To be included in the study, participants had to be at least 18 years old, have at least one year of work experience in psychiatry, and work more than 20 hours a week on a psychiatric ward (26). All participants provided written informed consent, and all local institutional review boards approved the project. Data collection took place from April 2008 to April 2009. A retest to evaluate the temporal stability of each measure was administered to a participant subsample (N=48) between September and November 2008.
Questionnaire
Sociodemographic variables.
Scales drawn from the Quebec Social and Health Survey were used to collect sociodemographic and work-related data. Psychological distress was measured with the Quebec Psychological Distress Index (27–29). The total score has been shown to be an efficient discriminative tool (27). In our sample, the total score showed good internal consistency (Cronbach's α=.89) and temporal stability in the test-retest (Pearson r=.57).
Team climate.
Team climate was evaluated by the Group Environment Scale (GES) (30), a standardized tool that has been translated into French and validated (31). The scale comprises ten nine-item subscales measuring different aspects of team climate. Six subscales have good internal consistency (α=.67–.88) and temporal stability (Pearson r=.57–.79 for the test-retest). These subscales are team cohesiveness, leader support, tolerance for self-discovery, guidance in performing tasks, expression of anger and aggression within the team, and order and organization. Two subscales—freedom of speech and leader control—have a lower level of internal consistency (α=.57 and .58) and good temporal stability (Pearson r=.68 and .72 for the test-retest). The other two subscales show the weakest psychometric properties: tolerance of independence (α=.30; r=.53) and tolerance for innovation (α=.56; r=.22).
Perception of aggression and frequency of incidents.
Perception of aggression was measured with the Perception of Aggression Scale (POAS) (32), a 12-item instrument that uses a 5-point Likert scale, from 1, strongly disagree, to 5, strongly agree) (33,34) to assess staff perceptions of aggressive behavior. Previous factor analysis revealed a two-factor structure: aggressiveness is dysfunctional-undesirable, and aggressiveness is functional-comprehensible. The POAS was translated into French. The internal consistency and temporal stability were good (α=.84 and .85 and Pearson r=.73 and .52, respectively, for each subscale.
The perceived frequency of aggressive incidents (verbal, nonverbal, physical toward self, and physical toward others) was measured on a 5-point Likert scale (from 1, never, to 5, daily) with a modified version of the Overt Aggression Scale (OAS) (35). The internal consistency was good (α between .84 and .89 for each subscale. The temporal stability was good for the verbal and nonverbal scales (r=.76 and .77, respectively), but it was lower for physical aggression toward self and toward others (r=.37 and .43, respectively).
Organizational factors
The research team developed questions about the availability of an aggression protocol on the ward and whether it was followed, descriptions of safety measures and whether they were sufficient, staff members' perception of their safety at work, and the type of violence management training program that was offered to staff. Most psychiatric staff members in Quebec have taken the Oméga Crisis Prevention Training Program (36). Also assessed were the type of psychiatric unit (regular hospital units versus intensive care unit and emergency department) and the hospital setting (teaching versus nonteaching milieu).
Measures of seclusion and restraint
Prevalence of seclusion and restraint was assessed by asking each participant how often the team had used these interventions in the previous two weeks. Groups were compared on the basis of the median value; high users were those who reported two or more seclusion and restraint episodes in the past two weeks, and low users were those reporting one or none. This categorization showed moderate temporal stability (κ=.585 for the test-retest) (37), indicating that variations in seclusion and restraint use were probably a result of changing patients and staff.
Data analysis
Statistical analyses were performed with SPSS software, version 17. Bivariate analyses to compare high and low users of seclusion and restraint were conducted with chi square tests for the categorical variables and Student's t test for continuous variables. A multivariate model was then completed to evaluate independent predictors of greater recourse to seclusion and restraint. Four different models were created, and a final multivariate model was completed with variables significant at p≤.1. Each of the variables in the bivariate analyses with a p value of ≤.25 was included in the multivariate analyses to determine significant independent predictors of seclusion and restraint in the psychiatric wards. Various models were evaluated, starting with the sociodemographic variables, followed by team climate, perception of aggression and aggressive incidents, and organizational factors. Each subsequent model retained the significant variables (p≤.1) from the previous one. To control for the confounding impact of certain variables (higher level of aggression or agitation), the type of unit (intensive care units and emergency departments versus regular hospital units) and the hospital setting (teaching versus nonteaching) were entered into every model (38–41). Finally, the goodness of fit of each model was assessed by the receiver operating characteristic curve. The level of discrimination was determined by the area under the curve, and following Hosmer and Lemeshow (42), discrimination was deemed acceptable at values between .70 and .79, excellent between .80 and .89, and outstanding at values over .90.
Results
Tables 1, 2, and 3 present results of bivariate analyses of differences in sociodemographic characteristics, subscale scores, and organizational factors, respectively, between the groups of high and low users of seclusion and restraint. Table 4 presents the four multivariate models of predictors of use of these interventions, along with the final model.
Sociodemographic variables
As shown in Table 1, there were no significant differences between the high and low users of seclusion and restraint in sociodemographic and work-related variables. Psychological distress was also not associated with greater recourse to these interventions. The first multivariate logistic regression model indicated that none of these variables was a significant predictor of the use of seclusion and restraint (Table 4). This model did not reach an acceptable level of discrimination.
Team climate
As shown in Table 2, bivariate analysis indicated no significant between-group differences on most of the GES subscales. However, a significant association was found between use of seclusion and restraint and scores on two of the subscales; greater expression of anger and aggression by staff members was associated with higher use, and greater order and organization among staff was associated with lower use. The second multivariate model indicated that higher scores on the subscales of tolerance for innovation and expression of anger and aggression were significant predictors of greater use of seclusion and restraint (Table 4). This model reached an acceptable level of discrimination.
Perception of aggression and incident frequency
Scores on the POAS subscale indicating that aggression was perceived as dysfunctional were significantly associated with a higher use of seclusion and restraint; no association was found with the POAS subscale measuring the perception of aggression as functional (Table 2). The modified OAS measured the perception of frequency of aggressive incidents. For all four subscales, a significant association was found between higher scores (more aggression) and greater use of seclusion and restraint. The third multivariate model indicated that scores on only one of the OAS subscales—indicating greater physical violence against the self—remained a significant predictor of greater use when the analysis controlled for confounding variables (Table 4). This model reached an acceptable level of discrimination.
Organizational factors
As shown in Table 3, bivariate analysis indicated an association between the type of violence management program and the use of seclusion and restraint. A trend was found toward a significant association between staff perception that the safety measures used were adequate and use of seclusion and restraint (p=.089). The type of unit and the hospital setting were associated with more use of seclusion and restraint; specifically, there was significantly more use on intensive care units and in emergency departments and in teaching hospitals. Type of unit was a significant predictor in all the multivariate models.
Final model
Controlling for unit type and hospital setting, the final multivariate model indicated that greater expression of anger and aggression among staff members and perception of a higher level of physical aggression against the self among patients were significant independent predictors of greater use of seclusion and restraint (Table 4). A trend was found toward a significant association between staff perceptions of the adequacy of safety measures (p=.061); when safety measures were perceived to be of a sufficient level, use of seclusion and restraint was lower. This model was the most parsimonious one and reached an acceptable level of discrimination.
Discussion
The purpose of this study was to explore staff-related and organizational predictors of the use of seclusion and restraint in psychiatric inpatient settings from the perspective of care providers. The study found that use was higher in certain types of hospital settings—intensive care unit and emergency departments—and when staff perceived greater expression of anger and aggression among team members, more incidents of aggression against the self among patients, and insufficient safety measures in the workplace. These findings underscore the importance of evaluating multiple factors (15), such as violence and safety perceptions, when examining reasons for use of seclusion and restraint.
In contrast to previous studies, our study did not find that sociodemographic characteristics of staff were a valid basis for predicting the use of seclusion and restraint. Staff education level, type of work (job title), and gender (43) have been found to affect the prevalence of seclusion and restraint in psychiatric wards and the incidence of violent behavior in general (44). Experienced staff members are generally considered to calm patients more effectively than less experienced staff and to report less use of seclusion and restraint (6,45). Findings of studies on gender and the likelihood of being the victim of a violent attack (45) are contradictory, a fact that may explain why our study found no difference in use of seclusion and restraint by gender. Furthermore, whereas other studies found a cultural bias in the use of seclusion and restraint use, our study did not find a difference between those with parents born in Canada or outside Canada.
The second multivariate model assessed the importance of team climate in managing seclusion and restraint. Two GES subscales were positively correlated with increased use. The perception of greater expression of anger and aggression among team members was a predictor of seclusion and restraint in the final model. Indeed, it is easy to understand how a psychiatric ward where expression of anger and aggressive behavior among staff members is more common would give rise to greater use of seclusion and restraint. What does this finding tell us about team climate and work satisfaction? Staff members who are more satisfied with their hospital setting and their team climate have been shown to perceive lower rates of aggression among patients (45), probably because of appropriate management and support by colleagues and administrative personnel when aggressive events occur. Many staff members in psychiatric wards feel socially pressured to “control” patients who have lost their rational capacities (46), but some staff members who consider seclusion and restraint demeaning to the patient and contrary to the principles of autonomy and care may feel conflicted. Appropriate management of anger and aggression by team members creates a sense of security and can help reconcile the balance between therapeutic interventions and the need to control patients. In the long run, the anxiety of some staff regarding aggressive behavior might be alleviated if aggression is perceived as part of the mental disorder and handled with more tolerance. In summary, these findings underscore previous research suggesting that the prevalence of seclusion and restraint in inpatient psychiatric settings is influenced more by team climate and organizational variables than by individual characteristics.
The scales used to measure perceptions of aggression and the frequency of aggressive incidents shed further light on the management of seclusion and restraint. Scores on a POAS subscale indicated that when violence was perceived as dysfunctional, seclusion and restraint were used more frequently. Scores on the OAS subscales showed that when the analysis controlled for unit type, higher perceived violence of various types (verbal, nonverbal, against self, or against others) predicted greater use of seclusion and restraint in the past two weeks. Taken together, these findings suggest that fears provoked by the irrational aggressiveness of psychiatric patients affect frontline workers in psychiatric wards and the way that they manage seclusion and restraint. As Foster and colleagues (18) reported, staff were more likely to use physical methods to manage incidents of aggression when they experienced fear, and fear can be induced by working in environments such as psychiatric wards, where incidents of physical and verbal abuse occur often and where it is difficult to understand the causes of patient aggression. In addition, Bowers and colleagues (47) reported that care providers with a positive attitude toward people with mental health problems had an easier time managing their emotional reactions and adopting a cooperative attitude with clients. Care providers with a negative attitude managed their emotional reactions less skillfully. They consequently adopted a controlling attitude that led them to resort more readily to use of seclusion and restraint. Wards with higher aggression rates have been found to have a preponderance of nurses whose style of interacting and intervening is restrictive and controlling (48).
However, only the OAS subscale measuring perceptions of violence against the self was a significant predictor in our final model. Recent empirical studies do not provide a reason for this finding—that is, they do not explain why this subscale rather than the OAS subscales measuring other types of violence was a predictor of seclusion and restraint use. On psychiatric wards, self-harm has been found to be a precipitating factor of the use of these interventions (6,9), especially with patients who have affective disorders. In such circumstances, seclusion and restraint measures may be perceived as a way of protecting the patient, and psychiatric staff may be more likely to use coercive measures in this context.
Staff training has also been shown to have an impact on the use of seclusion and restraint (49). Many reports have described examples of violence management training programs that have been implemented in hospitals with the aim of reducing the use of these interventions; many such programs have been successful (50,51). In our study, the association between training programs and lower use of seclusion and restraint was significant in the bivariate analysis, but training was not a predictor in the third multivariate model. Systematic training of every staff member might reduce recourse to seclusion and restraint, but current programs need improvement to attain this goal, and more alternatives to these interventions must be developed.
Staff perceptions that safety measures in psychiatric units are insufficient also appears to be important. A trend in the final model suggested that this factor has an independent significant impact on use of seclusion and restraint. This finding is consistent with results of earlier studies showing that psychiatric nurses' decisions were influenced by safety issues in the workplace (52,53) and that safety in the working environment was strongly related to staff satisfaction (54). To reduce the use of seclusion and restraint, staff perceptions of security should be targeted.
The study had several limitations worth noting. First, it was a cross-sectional study with a relatively small sample, although it was conducted in different types of institutions to ensure representation of diverse practices. Second, no data were available for staff members who refused to participate, and nonparticipants may not have had similar profiles. There was also a risk of recall bias in reports of the frequency of seclusion and restraint use. Finally, incidents of seclusion and restraint may have been underreported because of social desirability bias.
Conclusions
Much of the psychiatric literature supports the contention that the triad of research, education, and administrative leadership is integral to facilitating the move toward a “restraint-free” environment (50). Some have raised concerns about efforts to reduce seclusion and restraint because no controlled study has examined the value of these interventions for patients with serious mental illness (55). Although initiatives to reduce the use of these interventions by modifying certain organizational factors have been undertaken in Britain, success has been limited (24,56). New violence management techniques based on psychological and deescalation approaches might be used in combination with organizational changes to introduce alternative therapeutic interventions and reduce the conflicting feelings of psychiatric ward staff about use of seclusion and restraint. Research on patients' views of these interventions might also cast light on the subject.
Acknowledgments and disclosures
The authors thank Michele De Benedictis, B.L.A., for his help in the elaboration of the tables.
The authors report no competing interests.
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