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Revista Latino-Americana de Enfermagem

Print version ISSN 0104-1169On-line version ISSN 1518-8345

Rev. Latino-Am. Enfermagem vol.25  Ribeirão Preto  2017  Epub June 05, 2017

http://dx.doi.org/10.1590/1518-8345.1472.2884 

Original Article

Impact of critical care environment on burnout, perceived quality of care and safety attitude of the nursing team1

Edinêis de Brito Guirardello2 

2PhD, Associate Professor, Faculdade de Enfermagem, Universidade Estadual de Campinas, Campinas, SP, Brazil.


ABSTRACT

Objective:

assess the perception of the nursing team about the environment of practice in critical care services and its relation with the safety attitude, perceived quality of care and burnout level.

Method:

cross-sectional study involving 114 nursing professionals from the intensive care unit of a teaching hospital. The following instruments were used: Nursing Work Index-Revised, Maslach Burnout Inventory and the Safety Attitude Questionnaire.

Results:

the professionals who perceived greater autonomy, good relationships with the medical team and better control over the work environment presented lower levels of burnout, assessed the quality of care as good and reported a positive perception on the safety attitude for the domain job satisfaction.

Conclusion:

the findings evidenced that environments favorable to these professionals' practice result in lower levels of burnout, a better perceived quality of care and attitudes favorable to patient safety.

Descriptors: Patient Safety; Quality of Health Care; Health Facility Environment; Nursing; Critical Care; Job Satisfaction

RESUMO

Objetivo:

avaliar a percepção da equipe de enfermagem sobre o ambiente da prática em unidades de cuidados críticos e sua relação com atitude de segurança, percepção da qualidade do cuidado e nível de burnout.

Método:

estudo transversal com a participação de 114 profissionais de enfermagem da unidade de terapia intensiva de um hospital de ensino. Foram utilizados os instrumentos: Nursing Work Index-Revised, Inventário de Burnout de Maslach e o Questionário de Atitudes de Segurança.

Resultados:

os profissionais que perceberam maior autonomia, boas relações com a equipe médica e melhor controle sobre o ambiente de trabalho, apresentaram menores níveis de burnout, avaliaram como boa a qualidade do cuidado e relataram uma percepção positiva da atitude de segurança para o domínio satisfação no trabalho.

Conclusão:

os achados evidenciaram que ambientes favoráveis à prática desses profissionais resultam em menores níveis de burnout, melhor percepção da qualidade do cuidado e atitudes favoráveis à segurança do paciente.

Descritores: Segurança do Paciente; Qualidade da Assistência à Saúde; Ambiente de Instituições de Saúde; Enfermagem; Cuidados Críticos; Satisfação no Trabalho

RESUMEN

Objetivo:

evaluar la percepción del equipo de enfermería sobre el ambiente de la práctica en unidades de cuidados críticos y su relación con actitud de seguridad, percepción de la calidad del cuidado y nivel de burnout.

Método:

estudio trasversal con la participación de 114 profesionales de enfermería de la unidad de terapia intensiva de un hospital de enseñanza. Fueron utilizados los instrumentos: Nursing Work Index-Revised, Inventario de Burnout de Maslach y el Cuestionario de Actitudes de Seguridad.

Resultados:

los profesionales que percibieron mayor autonomía, buenas relaciones con el equipo médico y mejor control sobre el ambiente de trabajo presentaron menores niveles de burnout, evaluaron como buena la calidad del cuidado y relataron percepción positiva de la actitud de seguridad para el dominio satisfacción en el trabajo.

Conclusión:

los hallazgos evidenciaron que ambientes favorables a la práctica de esos profesionales resultan en menores niveles de burnout, mejor percepción de la calidad del cuidado y actitudes favorables a la seguridad del paciente.

Descriptores: Seguridad del Paciente; Calidad de la Atención de Salud; Ambiente de Instituciones de Salud; Enfermería; Cuidados Críticos; Satisfacción en el Trabajo

Introduction

In the past three decades, considerable knowledge has been produced on the relevance of the environment of nursing practice for the nurse, patient and institution. The healthcare environment is complex, demands technological and human resources to respond to the patients and families' care demands and the paramount activity of nursing, representing the main contingent of health professionals, is patient surveillance 24 hours per day1.

The environment of practice is defined as the organizational characteristics of a work environment that make the nursing practice easier or more difficult2. The American Association of Critical Care Nurses acknowledges the inseparable link between the quality of the work environment, the excellence of nursing practice and the patient and family care outcomes, highlighting six main standards to establish and sustain a healthy work environment, as follows: communication skills, cooperation among team members, effective decision making by the nurses, appropriate number of professionals, acknowledgement of the nurse for his/her contribution and authentic leadership by nurse leaders3.

The Institute of Medicine in the United States identified many risks to patient safety, originating in each component and level of the care system, including: work process, burden and work hours and work environment of the nursing team. It was equally highlighted that the changes in the care provision system in the past decades have affected the way nursing delivers care and preserves the patient safety1.

In this context, various studies focus on the impact of the environment of practice and the results for the patient and nursing, showing that environments in which the nurse possesses autonomy, control over the environment and good relationships with the medical team result in lower levels of burnout4-6, greater job satisfaction5,7, lesser intent to abandon the job5,8 and better outcomes for the patients in terms of care quality5,9 and patient safety5,8,10.

It is highlighted that, in Brazil, research on this theme is recent. Evidences appoint that environments favorable to nursing practice entail lower levels of emotional exhaustion for the professionals, greater job satisfaction and lesser intent to abandon the job11-12. Nevertheless, no studies are available that assess the impact of the environment of practice on the burnout level, job satisfaction and safety attitude of the nursing team at critical care services.

The objective in this study was to assess the perceptions of the nursing team about the environment of practice in critical care services and its relation with the safety attitude, perceived quality of care and burnout level.

Method

A cross-sectional study was undertaken at three intensive care units (ICU) of a teaching hospital in the city of Campinas, State of São Paulo. The three ICUs are located in separate physical facilities, the first with 22 beds, divided in three nursing stations: neurology (seven beds), coronary unit (five beds) and general ICU (ten beds). The second, the Clinical Emergency and Trauma ICU, offers 20 beds distributed among three nursing stations, being ten beds for clinical emergency and ten for trauma victims. The third ICU, with eight beds, is the Transplantation ICU.

The nursing team at these units consists of nurses, nursing technicians, supervisors and a nurse manager. Except for the nurse manager, the nursing team members work thirty hours per week. For the study, all nurses and nursing technicians were eligible. The sample included the nursing professionals involved in direct patient care who had worked at the current place of work for three months or more. As exclusion criteria, the subjects were considered who were active in management activities or were absent from the unit due to holidays, leave of absence or sick leave.

Approval for the study was obtained from the institutional Research Ethics Committee (Opinion 512.574). The subjects who accepted to participate in the study signed the Informed Consent.

The researcher and an undergraduate nursing student grantee collected the data between December 2014 and February 2015, with the formal authorization of the institution's nursing director and approval from the institution's Research Ethics Committee. The professionals who complied with the inclusion criteria were individually contacted at the workplace. They received information on the research objective and those who agreed to participate in the study received an envelope with the Informed Consent and the data collection instruments. A date and time was set to return the instruments.

To collect the data, the following instruments were used: Nursing Work Index - Revised (NWI-R) - Brazilian version13-14, Brazilian version of the Safety Attitudes Questionnaire - Short Form 2006 (SAQ)15) and the Maslach Burnout Inventory (MBI).

The Nursing Work Index - Revised (NWI-R), validated for the Brazilian culture, assesses the nursing professionals' perception of their work environment11. It consists of 15 items, distributed in four subscales: autonomy (five items), organizational support (ten items), control over the environment (seven items) and relations between physicians and nursing team (three items). It is highlighted that the items in the organizational support subscale were taken from the first three subscales and therefore are not added to the total number of items in the instrument. For the sake of this study, two versions of the NWI-R were considered, one for nurses13 and the other for nursing technicians14. Answers are provided on a four-point Likert scale, with the following alternatives: 1 (I strongly agree); 2 (I partially agree); 3 (I partially disagree) and 4 (I strongly disagree) and, the lower the score, the greater the presence of attributes favorable to these professionals' practice.

The Safety Attitudes Questionnaire Short Form 2006 - (SAQ) intends to assess the health professionals' perception of the safety attitudes permeating their work environment15. It contains 41 items, distributed in eight domains: job satisfaction, stress recognition, teamwork climate, safety climate, safe behavior, perception of unit management, working conditions and perception of hospital management.

Answers are provided on a five-point Likert scale, in which A = I strongly disagree, B = I somewhat disagree, C = neutral, D = I somewhat agree and E = I strongly agree. Another alternative answer is "X" = does not apply. The scores correspond to the average of the item scores in each subscale, with scores superior to 75 indicating the perception of a safe environment for the patient.

The objective of the Maslach Burnout Inventory (MBI) is to measure the professionals' physical and emotional exhaustion by assessing their feelings towards their own work. It contains 22 items, distributed in three subscales: emotional exhaustion (nine items), personal accomplishment (eight items) and depersonalization (five items). Answers are provided on a five-point Likert scale and the subjects are asked to answer how frequently they experience certain situations in their work environment, with the following alternative answers: 1 (never); 2 (rarely); 3 (sometimes); 4 (frequently) and 5 (always). The scores are obtained by adding up the item scores in each subscale, which are then ranked as low, moderate and high level based on the tertiles.

For the emotional exhaustion subscale, scores equal or inferior to 25 were considered low, superior to 25 and equal or inferior to 27 as moderate and superior to 27 as high level of burnout. For the depersonalization subscale, scores equal or inferior to 11 indicated low, superior to 11 and equal or inferior to 15 moderate, and superior to 15 high level of burnout. In the personal accomplishment subscale, scored inversely to the other subscales, scores equal or inferior to 33.5 were considered as high, superior to 33.5 and equal or inferior to 24 as moderate and superior to 33.5 as low level of burnout.

The characterization form contains the following variables: age, sex, length of professional experience, length of experience at the institution and current place of work. It also contains questions addressing the professionals' perception on the quality of care offered to the patient, on a scale ranging from very bad (1 point) to very good (4 points); the perceived adequacy of human resources, material and technological resources, with the alternatives yes and no and the professionals' intention to abandon nursing within the next 12 months was assessed by means of a visual analogue scale ranging from zero to ten in which, the higher the score, the greater the intent to abandon the profession.

The collected data were transferred to an electronic worksheet in Microsoft(r) Office Excel 2007 and analyzed with the advice of a statistician, using the software SPSS(r) 20.0 for Windows (Statistical Package for the Social Sciences version 20.0) and SAS 9.1.3 for Windows (Statistical Analysis System version 9.1.3).

Descriptive statistical analysis was applied to the subscales of the NWI-R, MBI, SAQ, personal and professional variables. Cronbach's alpha was used to assess the reliability of the instrument subscales. Coefficients can range between zero and one, with results equal or superior to 0.60 being considered satisfactory.

The correlations between the subscales of the NWI-R, MBI, SAQ and the other research variables were assessed by means of the Spearman correlation coefficient, which ranges between -1 and 1, analyzed according to the following criteria: absence of correlation (0.00), weak correlation (0.10 - 0.30), moderate correlation (0.31 - 0.50) and strong correlation (0.51 - 1.00). For the statistical tests, significance was set at 5%.

Results

The study participants were 114 nursing professionals, 41 (36.0%) of whom were nurses and 73 (64.0%) nursing technicians. The professionals' average age was 35.4 years (Min=23; Max= 60, SD= 8.7 years), 75% of the sample being aged 41 years or younger. The majority was female (79.8%) and had only one job contract (81.4%).

What the professional education is concerned, 26 (63.4%) nurses held a specialization degree in intensive care or nursing management; 3 (2.63%) held a Master's degree; 1 (0.88%) a doctoral degree and 11 (26.8%) a Bachelor's degree. Among the nursing technicians, 27 (37.0%) held a Bachelor's degree in nursing.

These professionals' length of experience corresponded to 10.4 years (Min=2; Max= 32, SD= 6.2 years), length of experience at the unit 5.2 years (Min=0.5; Max= 26.3, SD=5.3 years) and length of experience at the institution 7.7 years (Min= 0.25 Max=30.3, SD= 7.4 years).

Most professionals assessed the quality of the care offered to the patients as good (77.2%) and very good (15.0%), was satisfied with the work (71.9%), agreed that the number of professionals who delivered care at the unit was appropriate (68.42%) and that the material and technological resources at the unit were appropriate in number and quality (59.65%). As regard the intention to abandon the profession, on a visual analogue scale from zero to ten, the average was 1.69 (Min=0.0; Max= 10, SD= 2.69).

The nursing professionals' assessments of the environment of practice, burnout level and perceived safety attitude are displayed in Table 1. It is highlighted that, for the three measures, the reliability coefficients were satisfactory. For the NWI-R, the reliability coefficients corresponded to 0.70 for the autonomy subscale, 0.83 for relations between physician and nursing team and 0.73 for the control over the environment subscale. In the SAQ domains, the reliability coefficients ranged between 0.64 and 0.81. For the MBI subscales, these coefficients corresponded to 0.91 for the emotional exhaustion subscale, 0.79 for personal accomplishment and 0.73 for the depersonalization subscale.

Table 1 Description of nursing professionals' perception for the subscales of the Nursing Work Index-Revised, Maslach Burnout Inventory and Safety Attitude Questionnaire. Campinas, SP, Brazil, 2014-2015. 

Variables Mean SD Minimum First Quartile Median Third Quartile Maximum
Nursing Work Index-Revised
Autonomy 1.93 0.53 1.00 1.60 1.80 2.20 3,60
Organizational support 2.04 0.48 1.10 1.70 2.00 2.30 3,40
Control over the environment 2.08 0.53 1.00 1.71 2.00 2.29 3,71
Relations physicians and nursing team 2.10 0.65 1.00 1.67 2.00 2.33 4,00
Maslach Burnout Inventory
Emotional exhaustion 20.74 6.36 9.00 16.00 19.00 25.00 43,00
Personal accomplishment 30.88 4.20 20.00 29.00 31.00 33.50 40,00
Depersonalization 9.15 3.39 5.00 6.00 9.00 11.00 21,00
Safety Attitude Questionnaire
Job satisfaction 76.19 20.72 0.00 60.00 80.00 90.00 100,00
Stress recognition 69.04 26.68 0.00 56.25 75.00 93.75 100,00
Teamwork climate 68.62 17.22 20.83 54.17 70.83 79.17 100,00
Safety climate 60.18 18.33 14.29 46.43 62.50 71.43 95,83
Safe behavior 64.53 22.75 0.00 50.00 66.67 83.33 100,00
Perception of unit management 56.53 22.51 0.00 50.00 58.33 70.83 100,00
Working conditions 56.49 26.27 0.00 37.50 58.33 75.00 100,00

Next, we analyzed whether there were differences in the professionals' perception of the environment of practice, burnout, safety attitudes and perceived quality of care. It was verified that the professionals differed in their perceived safety attitude in relation to the stress recognition, one of the SAQ domains, in which the nurses scored higher than the nursing technicians (p = 0.0025).

In another analysis, we looked for correlations among the NWI-R subscales, SAQ domains, MBI subscales and the variable perceived quality of care (Table 2).

Table 2 Spearman correlation coefficient among subscales of the Nursing Work Index-Revised, subscales of the Maslach Burnout Inventory, subscales of the Safety Attitude Questionnaire and perceived quality of care (n= 114). Campinas, SP, Brazil, 2014-2015. 

Variables Autonomy Relation physician nursing Control over the environment Emotional exhaustion Personal accomplishment Depersonalization Teamwork climate Safety climate Job satisfaction Stress recognition Unit management Hospital management Working conditions Safe behavior
Quality of care -0.44* -0.37* -0.30 -0.29 0.33 -0.22 0.39* 0.39* 0.34 -0.04 0.27 0.19 0.20 0.31
Autonomy 0.41* -0.25 0.25 -0.46* -0.43* -0.39* 0.15 -0.47* -0.39* -0.49* -0.46*
Relation physician and Nursing 0.23 -0.12 0.21 -0.48* -0.37* -0.25 0.15 -0.29 -0.21 -0.36 -0.38*
Control over the environment 0.48* -0.24 0.18 -0.48* -0.42* -0.38* 0.15 -0.43* -0.39* -0.44* -0.43*
Emotional exhaustion -0.47* -0.41* -0.37* 0.18 -0.37* -0.37* -0.41* -0.39*
Personal accomplishment 0.33 0.31 0.36* -0.04 0.25 0.27 0.17 0.19
Depersonalization -0.29 -0.20 -0.30 -0.08 -0.27 -0.33 -0.36 -0.23

*p < 0.0001

†p < 0.05

When evaluating the existence of correlations among the SAQ subscales, the length of experience at the unit and the intention to abandon the profession, a weak correlation was found between the length of experience at the unit and the safety climate (r= -0.24; p= < 0.0112), job satisfaction (r= -0.24; p= < 0.0108), perception of unit management (r= -0.26; p= < 0.0054) and perception of hospital management (r= -0.26; p= < 0.0067) domains.

Discussion

In this study, the impact of the environment of professional practice, the burnout level, the perceived quality of care and the safety attitudes of nursing professionals at intensive care units was investigated.

The participants were young adult professionals, mostly female with a single job. Most nurses held some specialization degree, but few degrees were related with their activity area, appointing that no culture exists at the institution to encourage the professionals to seek qualification/specialization related to their own work. As regards the nursing technicians, 27 (37.0%) held an undergraduate degree in nursing, demonstrating the concern with or search for qualified education.

Most professionals assessed the quality of the care offered to the patients as good and very good. The positive assessment of the care quality converges with other findings in this study, in that the professionals were satisfied with their work and did not intend to abandon the profession, besides their positive perception on the adequacy of human, material and technological resources at the unit. Studies emphasize the important relation between perceived quality of care, job satisfaction and lesser intent to abandon the job5,8, which are influenced by the dimensions of the nurse's environment of practice.

In relation to the perception of the environment of practice, most professionals perceive their work environment positively for all NWI-R subscales, particularly autonomy, which obtained the highest average when compared to the other dimensions of the NWI-R. The assessment between the professional categories did not result in significant differences. These findings support a study at a critical care unit16, one of the few to assess the environment of practice at this type of unit.

What the burnout is concerned, the majority presented a low level of emotional exhaustion and feeling of depersonalization and a moderate level of personal accomplishment. In an earlier study, emotional exhaustion was an important variable, not only when assessed individually for the nurse, but also when measured between groups. As regards the unit, emotional exhaustion indicates the pressure nurses experience in the context of the team they work in and reflects the team's experience17. It is important to highlight that, in this research, the burnout level did not differ between the nurses and nursing technicians.

With regard to the perceived safety attitude, it could be identified that only the job satisfaction domain was considered favorable, as observed earlier15. The stress recognition and teamwork climate domains, on the other hand, obtained averages superior to 68 points and should be valued by the unit manager, as they can influence the perceived safety attitude at the institution.

Significant differences were verified between the professional categories in terms of stress recognition, as most nurses, corresponding to more than 3/4 of this group, presented averages of 93.75 points or higher, signaling that the perceived stress was an important variable that interferes in these professionals' perceived safety attitude.

As appointed in other international studies, a significant correlation was found between the NWI-R (autonomy, relations with physicians and control over the environment), emotional exhaustion and job satisfaction4-5,7-8,17.

The perceived quality of care resulted in a moderate and significant correlation with the subscales autonomy, relation between physician and nursing team, personal accomplishment and with the domains: teamwork climate, safety climate, job satisfaction and safe behavior. In other words, professionals with autonomy and good relationships with the medical team feel personally accomplished, report that they offer a good quality of care to the patient and that they have a positive safety attitude, as demonstrated by the teamwork climate, safety climate, job satisfaction and safe behavior.

Another important aspect similar to the international studies8,18 was the moderate correlation between emotional exhaustion and the subscales autonomy and control over the environment. This means that, in environments in which the professionals report having autonomy and control over the environment, they present lower levels of emotional exhaustion. In addition, a moderate and weak correlation was evidenced between the subscales: autonomy, control over the environment, good relationships between physician and nursing team and all SAQ domains, except for the stress recognition domain, which showed no correlation with any of the variables.

And finally, but not less important, a weak correlation was found between the length of experience at the unit and the safety climate, job satisfaction, perception of unit and hospital management domains, indicating that, the shorted the length of experience at the unit, the worse these professionals' perception of the safety attitude.

This is one of the first studies developed at intensive care units in Brazil to show that environments favorable to the professional practice, with perceived autonomy, good professional relationships and control over the environment result in job satisfaction and lower levels of burnout for the nursing professionals.

Study limitations

This study comes with several limitations. The convenience sample does not permit the generalization of the data. The research scenario was a public teaching hospital and may not picture the reality of the intensive care units in the State of São Paulo and other Brazilian regions. Finally, intervention studies need to be developed to assess strategies that result in improvements in the environment of practice.

Conclusion

The findings evidence that environments favorable to the nursing team's professional practice can result in lower levels of emotional exhaustion, a higher quality of care and a positive perception of the safety attitudes.

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1Supported by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brazil, process #2013/05096-6.

Received: February 02, 2016; Accepted: February 22, 2017

Corresponding Author: Edinêis de Brito Guirardello Universidade Estadual de Campinas. Faculdade de Enfermagem Rua Tessália Vieira de Camargo, 126 Cidade Universitária CEP: 13083-887, Campinas, SP, Brasil E-mail: guirar@unicamp.br

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