original article

Oman Medical Journal [2023], Vol. 38, No. 6: e568 

Quality of Life Among Postgraduate Medical Residents in Oman: A Cross-sectional Survey

Noor Al Wahaibi1*, Rahma Al Kindi2 and Mustafa Al Hinai2

1Family Medicine Residency Training Program, Oman Medical Specialty Board, Muscat, Oman

2Department of Family Medicine and Public Health, Sultan Qaboos University Hospital, Muscat, Oman

article info

Abstract

Objectives: To assess the quality of life (QoL) of medical residents enrolled in the various postgraduate programs of the Oman Medical Specialty Board (OMSB). Methods: The data for this cross-sectional study was collected from January to June 2022. All postgraduate residents who were enrolled in all 19 OMSB training programs were targeted. An online English version of the validated 36-Item Short Form Health Survey (SF-36) was used to assess the participants’ self-reported QoL. Results: The participants were 425 OMSB residents (mean age = 29.6±2.2 years), of whom 289 (68.0%) were female, 259 (60.9%) were married, and 295 (69.4%) were enrolled in medical specialties. Overall, female residents reported significantly poorer QoL than male residents in all subscales of SF-36 (p = 0.001). Married residents reported lower bodily pain scores than unmarried residents (p = 0.005), although the latter endorsed better physical functioning, general health, and mental health. Residents in laboratory specialties had higher scores than those in medical and surgical specialties in most QoL dimensions including physical health, role functioning, energy/fatigue, emotional well-being, bodily pain, and general health (p ≤ 0.003). Psychiatry residents reported the lowest overall QoL. Conclusions: Postgraduate medical residents in Oman reported significant variations in QoL based on specialization, gender, and marital status. These findings underscore the need for targeted interventions to tackle health inequalities and improve the QoL of this population.

Quality of life (QoL) is a subjective, multidimensional construct used to measure an individual’s overall well-being by assessing their self-perceptions of the state of their life in various domains.1 While the perceptions of health and QoL in patient populations have been extensively investigated, there is a need for more research focusing on the healthcare personnel, whose QoL impacts not only themselves but also the quality and safety of the healthcare they provide.2–4

Research has shown that postgraduate medical residents are subject to higher levels of stress than similarly aged people in non-medical programs.2,3 Various studies have linked medical education and residency training with deficits in sleep, physical activity, and social interactions, as well as with work stress, burnout, and depression.4–6 Thus, an understanding of the factors that influence residents’ QoL during medical training can help facilitate healthcare promotion activities and psychopedagogical services during their training period.

Research among healthcare professionals has linked their poor QoL with a long-term negative effect on their health.5–7 However, most such studies originating from Oman have been performed in single, localized centers and therefore may not have reflected the realities fully. Therefore, this larger study aimed to assess the QoL of all postgraduate medical residents in Oman and determine the relationships between the QoL parameters and their sociodemographic characteristics.

Methods

This cross-sectional study was carried out from January to June 2022 among postgraduate residents enrolled in various training programs of the Oman Medical Specialty Board (OMSB), the sole regulatory body of postgraduate medical training in Oman. The OMSB is an autonomous organization responsible for developing and maintaining postgraduate medical education standards, criteria, and certification for practicing healthcare professionals in defined areas of medical specialization, including anesthesia, biochemistry, dentistry, dermatology, ear nose and throat, emergency medicine, family medicine, general surgery, hematology, histopathology, internal medicine, microbiology, obstetrics and gynecology, ophthalmology, oral and maxillofacial surgery, orthopedics, psychiatry, child health, and radiology. The total population of postgraduate residents during the study period was approximately 602, distributed in 19 training programs. We excluded 19 residents who were on long leave, had recently completed their residency training, or were undertaking master’s degrees abroad or fellowships. Thus, 583 residents were included in the study.

An electronic, self-administered questionnaire was distributed to all residents using Google Forms (Google LLC, Mountain View, CA, USA). Self-reported health status and QoL were assessed using an English version of the validated 36-Item Short Form Health Survey (SF-36), which is available free online.8 Although this instrument is usually applied to specific clinical groups or disease populations, the tool itself was designed for use as a generic health measure in the general population (among individuals aged ≥ 14 years).9–11 The SF-36 consists of eight subscales to assess various aspects of health-related QoL, including physical functioning, physical role functioning, bodily pain, general health, vitality (energy/fatigue), social functioning, emotional role functioning, and mental health. The score for each subscale is determined on a 0–100 scale where each question carries equal weight, with weighted sums calculated for the questions in each section. Lower scores are taken to indicate a greater degree of disability. However, as per the questionnaire developers, the SF-36 cannot be used to generate a global measure of health-related QoL.12 As such, we made initial crude estimates using a procedure previously described.13

We used SPSS Statistics (IBM Corp. Released 2015. IBM SPSS Statistics for Windows, Version 23.0. Armonk, NY: IBM Corp.), for data analysis. Descriptive findings were reported as means and SD for normally distributed continuous variables and as frequencies and percentages for categorical variables. The associations between the participants’ sociodemographic characteristics (categorical variables) were tested using either an independent t-test or an analysis of variance. Pearson’s chi-squared test was applied to compare categorical variables. Statistical significance was considered to be at p ≤ 0.05.

This study was conducted as per the Declaration of Helsinki, the ethical approval for which was given by the OMSB Research Ethics Committee (ref: 2020/10/7/1582 dated 28/10/2020). Prior informed consent was obtained from all the invitees after appraising them about the objectives of the study, the voluntary and confidential nature of their participation, and their right to withdraw at any time.

Results

A total of 583 residents initially agreed to participate in the study (437 women and 146 men), of whom 425 returned completed questionnaires (response rate = 72.9%). Of the 425 participants, 289 (68.0%) were female and 136 (32.0%) were male. Their mean age was 29.6±2.2 (range = 25–35) years. Senior residents were in the slight majority (217; 51.1%). Most participants were married (259; 60.9%) and had one or more children (224; 52.7%). Most (295; 69.4%) residents were enrolled in medical specialties (anesthesia, dermatology, emergency medicine, family medicine, internal medicine, psychiatry, pediatric medicine, and radiology), 95 (22.4%) were in surgical specialties (ear nose and throat, general surgery, ophthalmology, oral and maxillofacial surgery, obstetrics and gynecology, and orthopedics), and 35 (8.2%) were in laboratory specialties (biochemistry, hematology, histopathology, and microbiology). Most participants originated from outside Muscat (257; 60.5%) [Table 1].

Table 1: Sociodemographic characteristics of postgraduate medical residents enrolled at the Oman Medical Specialty Board (N = 425).

Characteristics

n (%)

Age, years

Mean ± SD

29.6 ± 2.2

Range

25–35

Gender

Male

136 (32.0)

Female

289 (68.0)

Year of residency

R1

92 (21.6)

R2

115 (27.1)

R3

99 (23.3)

R4

96 (22.6)

R5

20 (4.7)

R6

3 (0.7)

Residency level

Junior

208 (48.9)

Senior

217 (51.1)

Specialty

Medical

295 (69.4)

Surgical

95 (22.4)

Laboratory

35 (8.2)

Marital status

Single

166 (39.1)

Married

259 (60.9)

Number of children

0

201 (47.3)

1

138 (32.5)

> 1

86 (20.2)

Region of residence

Muscat

168 (39.5)

A reliability analysis was conducted to investigate the internal consistency and reliability of each SF-36 subscale. Apart from one, all the SF-36 subscales had Cronbach’s alpha values > 0.7, indicating satisfactory reliability [Table 2]. According to the univariate analysis, male residents reported a significantly higher QoL scores than female residents in all SF-36 subscales (p = 0.001). Married residents had statistically significantly lower body pain scores compared to unmarried residents (61.6±19.8 vs. 67.4±20.0; p = 0.005); however, single residents had significantly higher scores than their married counterparts for other QoL domains, including physical functioning (85.1±18.0 vs. 79.6±21.6; p = 0.008), general health (61.0±12.0 vs. 57.8 ±13.1; p = 0.014), mental health (50.4±16.9 vs. 46.7±18.3; p = 0.038), and emotional role functioning (61.3±41.7 vs. 47.8±40.9; p = 0.001). Finally, residents enrolled in laboratory specialties had significantly higher scores across all SF-36 subscales than those in medical and surgical specialties (p ≤ 0.003) [Table 3].

Table 2: Reliability and mean scores for each quality of life subscale* among postgraduate medical residents enrolled at the Oman Medical Specialty Board (N = 425).

Subscale

Cronbach’s alpha

Mean ± SD

Physical functioning

0.913

81.7 ± 20.4

Role functioning/physical

0.808

50.4 ± 39.4

Role functioning/emotional

0.797

52.6 ± 41.7

Energy/fatigue

0.797

61.7 ± 18.4

Social functioning

0.810

58.4 ± 20.8

Bodily pain

0.774

63.8 ± 20.1

General health

0.520

58.8 ± 12.8

*Self-reported by the participants using an English version of the validated 36-Item Short Form Health Survey.8

Table 3: Associations between quality of life* and sociodemographic characteristics among postgraduate medical residents enrolled at the Oman Medical Specialty Board (N = 425).

Characteristics

Quality of life subscale: mean score ± SD

Physical functio-ning

Role functioning

Energy/

fatigue

Social functio-ning

Bodily pain

General health

Mental health

Physical

Emotional

Gender

Male

86.4 ± 19.2

60.8 ± 39.2

69.1 ± 38.6

67.9 ± 17.5

65.0 ± 19.6

69.0 ± 19.2

60.8 ± 12.9

50.7 ± 18.2

Female

79.5 ± 20.5

45.4 ± 38.5

44.8 ± 40.8

58.8 ± 18.0

55.2 ± 20.6

61.3 ± 19.9

57.9 ± 12.0

46.7 ± 17.6

p-value

0.001

0.001

0.001

0.001

0.001

0.001

0.001

0.001

Residency level

Junior

81.9 ± 19.5

52.1 ± 39.8

52.8 ± 41.9

60.7 ± 19.0

57.9 ± 21.0

63.5 ± 20.2

58.4 ± 12.4

47.8 ± 17.6

Senior

81.5 ± 21.2

48.8 ± 38.9

52.6 ± 41.5

62.8 ± 17.0

58.9 ± 19.0

63.8 ± 19.7

59.2 ± 13.0

48.1 ± 18.2

p-value

0.850

0.385

0.974

0.246

0.615

0.893

0.523

0.866

Specialty

Medical

80.6 ± 21.0

47.7 ± 38.9

49.9 ± 41.8

60.4 ± 18.5

57.0 ± 21.0

62.3 ± 20.1

58.7 ± 13.1

48.0 ± 18.4

Surgical

80.5 ± 19.0

49.2 ± 40.5

49.4 ± 41.7

60.5 ± 18.1

57.3 ± 19.0

63.2 ± 20.0

56.9 ± 11.4

44.1 ± 16.1

Laboratory

93.7 ± 13.1

76.4 ± 31.9

83.3 ± 24.9

75.2 ± 10.0

72.7 ± 12.0

77.4 ± 14.3

65.4 ± 10.2

58.0 ± 13.3

p-value

0.001†

0.001

0.001

0.001

0.001

0.001

0.003

0.001

Marital status

Single

85.1 ± 18.0

61.6 ± 38.5

61.3 ± 41.7

64.0 ± 20.4

61.1 ± 21.6

67.4 ± 20.0

61.0 ± 12.0

50.4 ± 16.9

Married

79.6 ± 21.6

44.4 ± 38.4

47.8 ± 40.9

60.3 ± 17.1

56.8 ± 20.3

61.6 ± 19.8

57.8 ± 13.1

46.7 ± 18.3

*Self-reported by the participants using an English version of the validated 36-Item Short Form Health Survey.8
Statistically significant.

Discussion

The current study assessed the QoL of postgraduate medical residents in Oman. Gender, specialty, and marital status were the main factors found to influence the cohort’s QoL. Significant gender differences in all QoL subscales were revealed, with male participants scoring significantly higher than females in all dimensions. These findings are consistent with those from Italy and the USA.14,15 The gender-related differences in QoL in our study were larger than those observed in Greece.16 A previous study in the USA based on a national sample of 2,326 physicians found that female physicians were 1.6 times more likely to endorse burnout than male physicians, with the odds of burnout increasing by 12–15% for each additional five hours worked per week beyond 40 hours.17

This greater burden has been linked to the nonprofessional responsibilities of women, such as childcare.18,19 Indeed, outside of the healthcare field, Jenkinson et al,20 reported that women of working age had poorer SF-36 scores than men in all general health dimensions. Other studies have also suggested that irrespective of profession or age group, women generally reported poorer QoL than men.11,21 This has been postulated to be related to the influence of gender on decision-making and gender differences in the subjective perceptions of health, potentially indicating the need to develop gender-specific QoL benchmarks.22 Others have suggested that lower QoL among women may also vary due to cultural and societal expectations resulting in lower social status, lower income potential, and more barriers to healthcare access compared to men.22–24 Given the fact that the majority of healthcare practitioners globally are women (as also reflected in our cohort) the lower QoL among them is concerning and calls for further research.25

One significant finding of this study was that the better QoL endorsed by the residents of laboratory specialties in all SF-36 subscales compared to surgical and medical residents, implying the existence of QoL inequalities between various healthcare specialties. According to a systematic review and meta-analysis of studies on surgical residents, number of hours worked per week may represent a significant predictor of burnout, decreased career satisfaction, and poorer QoL.26 Additional research is necessary to determine whether the number of hours worked plays a role in the QoL of postgraduate medical residents in Oman and whether and how this relates to their chosen specialty. Previous research has demonstrated variations in QoL in terms of physical functioning, physical role functioning, and bodily pain, between healthcare workers in different roles, while others have reported no differences in general health, social functioning, emotional role functioning, or mental health.4,27

We also noted that Omani residents’ QoL differed depending on their marital status, with single residents appearing to outperform their married counterparts in almost all QoL domains, perhaps attributable to the additional domestic commitments of married individuals.

Another finding of concern in the current study was the fact that mental health residents had the lowest scores (mean = 48.0±17.9) in all QoL domains. A study conducted in the USA found that psychiatry residents had QoL scores similar to those of mental health professionals.28 In Italy and Japan, psychiatry residents have demonstrated moderate burnout.29,30 However, it is important to note that concepts of QoL and burnout in these studies were assessed using different tools (including the Multi-Cultural Quality of Life Inventory, Patient Health Questionnaire-9, and Maslach Burnout Inventory-General Survey) which may hinder meaningful comparison.28-30

In the United Arab Emirates, a multicenter study indicated that at least one symptom of burnout was evident in up to 70% of medical residents, with the prevalence of depression ranging 6–22%, depending on the specialty.31 In Greece, healthcare personnel exhibited greater mental health impairment and significantly lower SF-36 scores compared to non-medical workers such as teachers and municipality workers.32 A Danish study showed that those in human service occupations were at increased risk of common mental disorders, mostly depression and anxiety.33 We therefore recommend additional screening to detect mental health disorders and other associated health conditions among postgraduate medical residents in Oman. We also recommend additional follow-up research on their post-training QoL, in addition to interview-guided qualitative research to provide more in-depth data.

As per the Accreditation Council for Graduate Medical Education (ACGME), “the goal of any postgraduate medical training program should not merely be to prepare its trainees with medical knowledge and skills to function as independent physicians, but also equip them with the necessary tools to maintain habits of lifelong learning and personal well-being”.34,35 Specifically, the ACGME updated their common program requirements to reflect the importance of physician self-care and wellbeing, both with regards to the role that such aspects play in meeting the core competency of professionalism, as well as in reducing burnout and depression.35

A variety of interventions have been proposed to help improve the mental health and QoL of postgraduate residents and prevent burnout in this population, including residency-integrated support services as well as implementing voluntary wellness and resilience programs designed to promote regular exercise, healthy diet, healthy coping/stress management mechanisms, and sleep hygiene.34,36,37 Future research in Oman could focus on designing and testing the effectiveness of such programs among OMSB residents to determine their feasibility in this setting and their impact on QoL.

To our knowledge, this study measured QoL in the largest ever sample of Omani postgraduate medical residents, and it yielded a large number of statistically significant findings. A limitation of this research was that the cross-sectional design did not allow for the determination of causality. Moreover, there is uncertainty as to the appropriateness of applying certain dimensions of HRQOL (such as bodily pain) among non-patients. Future longitudinal studies may produce broad-ranging results with greater validity and scope which can form the basis of strong policies to improve the overall QoL of medical residents in Oman, gender-wise and specialty-wise.

Conclusion

Specialization, gender, and marital status were factors that significantly influenced self-perceptions of QoL among a large cohort of postgraduate medical residents in Oman. Male gender, single status, and being enrolled in laboratory specialties were predictive of higher scores in most QoL domains. These findings may help develop and implement further supportive measures to improve QoL discrepancies and health inequalities among postgraduate medical residents.

Disclosure

The authors declared no conflicts of interest. No funding was received for this study.

Acknowledgments

We are grateful to Mr. Sachin Jose of the Oman Medical Specialty Board, Muscat, Oman, for his invaluable help with the statistics.

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