The aim of this study was to identify the prevalence of psychological distress and associated factors. In addition to this, the findings of this study will have a significant role towards overcoming of the problems associated with psychological distress among nurses, like; job dissatisfaction and lack of energy which negatively affects their perception of the quality of life and health services in the workplace and the relationship with the patient and family [38]. Conversely, nurses with their job satisfaction increases showed reduced psychological distress [39].
In this study, the prevalence of psychological distress was 78(27.7%) with 95% CI (22%, 33%), and this study was found to be low when it is compared with a study done in Nigeria 44.1% [20]. The possible explanation for the difference in prevalence may be due to the difference in study setting, study population, tools, and methodological differences. For instance, in a study conducted in Nigeria, the tool named General Health Questionnaire (GHQ-12)was used whereas, the Self-Reporting Questionnaire version 20 (SRQ 20) was used in our study.
In contrast to the other study, this study was found to be higher compared with the studies conducted in different areas, wherein Norwegian 13% [40], in Sri Lanka 21% [41], in Addis Ababa, Ethiopia 11.7% [42], and in another study conducted in Addis Ababa, Ethiopia 17.7% [43].
This discrepancy might be for the reason that there might be a difference in a study setting, study population, tools, and methodological differences. Another possible explanation might be due to the nature of their work that nurses are more prone to experience psychological distress than the general population in the community.
Different independent predictor variables associated with psychological distress were identified in this study.
In this study, the job title was found to be significantly associated with psychological distress. The odds of having psychological distress were almost 10 times more likely in those participants with a job title of staff nurse as compared with a head nurse. This might be due to the fact that those nurses in the position of staff nurse may experience more distress and less job satisfaction because they spend more time with patients. Conversely, nurses working in managerial positions, generally have more professional experience and a higher level of education, which factors can help them to cope with different stressors and also increase job satisfaction [44].
Work experience was also found to be significantly associated with psychological distress. Participants whose working experience was 6–10 years were almost 5 times more likely to have psychological distress than those participants with experience of 1–3 years. This finding also noted in London that year of work is associated with psychological distress [45]. This might be explained by those nurses who worked for a long duration of time in the health setting are more subjected for emotional exhaustion, lack of energy, and general fatigue which in turn leads to the experience of psychological distress [46].
This study found interaction with other staff members was also another predictor variable for psychological distress. Nurses with good interaction with other staff members were 30.5% times less likely to be psychologically distressed as compared with their counterparts. This finding is in line with the study conducted in Virginia, USA [47], and in Texas [48]. This is due to the fact that nurses with good interaction among staff and family members have a chance to discuss and seek solutions for the issues which interfere with their stability and motivation for work. In contrast to this, poor interaction can negatively affect their physical as well as mental health [49].
In this study, fatigue among nurses was considered as a significant variable for psychological distress. Participants with fatigue were 2.5 times more likely to have psychological distress as compared with their counterparts. This is supported by a study from Iran [50] and Rhine-Main-Region, western Mid-Germany [51]. This might be for a reason that nurses with fatigue are commonly experienced with a devastating sense of drowsiness, lack of energy, and impaired cognitive and/or physical functioning, which may lead to a health problem, decrement of performance, increased risk of injury/accident, and low personal achievement, which possibly experience psychological distress [52–54].
Social support was found to be another factor associated with psychological distress in this study. Those participants with intermediate social support were 18.9% times less likely to have psychological distress than those with poor social support. This finding is also supported by the study conducted in China [55] and in Sri Lanka [41]. A plausible explanation to this could be the fact that nurses with good social support can have good mental and physical health [56–58], where this leads to the good cognitive function and performance of concentrated health care procedure which finally increases the quality of health care services [59].
Besides, this study investigated that participant with perfectionism was a predictor variable for psychological distress. Participants with perfectionism were almost six times more likely to develop psychological distress than their counterparts. This finding was supported by the study conducted in the United States Western University, USA [60]. This is due to the fact that perfectionism is a driving force of negative stress in some nurses [61]. Because perfectionist nurses who were more concerned about faults, obsessed with higher quality of work, and had more worries about their capabilities regarding the patient care are more prone to be psychologically distressed [62–64].
Insomnia was also another important predictor variable in this study. The odds of having psychological distress were almost 4 times more likely in those participants with a minor problem with sleep as compared with those participants with normal sleep. This is supported by the study conducted in Finland [65], in the USA [66], and in Samara, Ethiopia [67]. The reasonable justification could be the fact that nurses with sleep problem become disoriented for their work and further it increases the likelihood of subsequent psychological distress [68–70].