The main result of this study was that at the clinical semesters, significantly more women than men experienced discrimination due to gender. The proportion of students reporting gender discrimination at preclinical semesters was lower, with no significant difference between women and men. Physicians were the most commonly reported perpetrators of sexual harassment and clinical training moments were the most common place where these behaviors were experienced. Our study also reported an increased prevalence of different gender discrimination and gender harassing behaviors over time in females and males during their preclinical semesters. Alarmingly, sexual harassment such as being "pointed out as of sexual interest" or "received intrusive touch" or "receive a request for sexual relationship" have increased in all clinical students over time. In addition, a substantial part of the medical students from minorities reported mistreatment due to "other grounds of discrimination". Discrimination of ethnic minorities and those with disabilities were particularly high.
Our findings that female medical students reported gender-based discrimination [6, 15], including sexual harassment [3, 16], more often than males corroborate with several international studies conducted before and after the #Metoo movement. Direct comparison of the proportion of affected medical students is, however, difficult because of the diversity in study design. In one study from the USA based on 27 504 surveys of graduating medical students, a significantly higher percentage of females than males reported discrimination due to gender [5]. A German study based on an online survey reported that 59% of medical students experienced sexual harassment [18], and in a French study, it was shown that 22.5% of female compared to 9.8% of male medical students reported to have been victims of gender discrimination and sexism. In this report, a comparable percent of women and men reported having witnessed discrimination due to gender [19]. Similarly, in our study, we found no significant differences in the proportion of females and males who reported having observed other students being discriminated. Interestingly, significantly more women than men in the clinical semesters reported that they heard about other students being discriminated. One explanation could be that women discuss gender issues with other female colleagues more often than men. Surprisingly, we found that more male students experienced being favoured compared to females, and this difference was significant during the clinical semesters. A higher proportion of female students than men observed other students being favoured.
Consistent with previous studies [16], we saw that significantly more female than male students experienced discrimination during clinical clerkships compared [17, 18] to other parts of training. The students in the clinical settings pointed out that physicians were the most common perpetrators. Similar results were shown in our previous studies conducted in 2002 and 2013 [7] and in reports in several other countries [19, 20]. The reason why physicians might be perceived to behave inappropriately while supervising students has been explained by complex organizational psychology as "see one, do one, teach one" [21]. As many medical doctors have experienced discrimination themselves, similar expressions might form their collegial expression and hidden curriculum [22]. This might lead to cynicism and also use of inappropriate teaching methods while supervising students. The reason why women are more affected by gender discrimination during their clerkship has been broadly addressed and claimed to be a combination of hierarchical and dependent relationships between students and supervisors in an, often male dominated and stressful environment [23].
Since the 1970s, there has been a continuous work in Sweden to provide equal rights and opportunities in the labor market and education system [24]. This has resulted in a universal act called the Discrimination Act (SFS 2008:567) set into legal effect in 2009 [24]. This act forbids unlawful mistreatment on the basis of all grounds of discrimination. Since 2015 Uppsala University has followed an action plan based on the Discrimination Act and the Action Plan of Equal Opportunity (UFV 2015/766) [25]. One of the aims was to monitor equal opportunities by the newly formed research groups [26] and another to recruit and appoint 48 percent female professors [25]. In the medical program, these aims are communicated and reflected through a mandatory course on gender medicine for all students during their final semester of medical studies. The course goals are to educate students on gender and other ground of mistreatments in the context of their forthcoming profession.
We found that experience of several forms of gender discrimination and harassment of women during their clinical semesters increased over time. In addition, sexual mistreatment have increased in clinical students. The explanation to why the reported prevalence of gender discrimination has increased between 2013 to 2020 might be due to higher awareness as a result of interventions from the university and the #Metoo movement. An increased reporting of these experiences after #Metoo was also found in the survey on working environment conducted in Sweden among randomly selected women employed in academic settings. In accordance with this report, there were 400% more reported cases of sexual harassment in a year after #Metoo (2018) compared to the year before (2017) [27].
There have been few longitudinal studies on mistreatment among medical students. Fried et al. examined discriminations among American medical students after third-year clerkships over 13 years between 1996 and 2008. This study used comparable definitions of sexual harassment as we did in our studies. They showed that these experiences remained on the same level throughout the study period and that females were significantly more affected compared to men [18].
More than one-third of the students with other than Swedish ethnicity reported experiencing discrimination. A recent national report of the Swedish Medical Association indicated that 5% of graduated students reported being mistreated due to ethnicity. However, that report did not report if those students belonged ethnic/race minority [28]. In our study, discrimination due to ethnicity was equally reported in females and males. Inversely a recent study from the USA found that discrimination due to race/ethnicity was significantly more commonly experienced among women than men [6]. Interestingly, another study highlighted that ethnic mistreatment, the forms of discrimination that medical students were least likely formally report [18].
Moreover, there was a small number of students (n = 25) who reported functional disability such as dyslexia. Half of them reported being discriminated against due to their disability. Only a few previous studies have addressed learning disabilities in medical students. Students with functional disabilities usually receive lower grades which may lead to lower self-esteem, stress and anxiety [29]. The previous studies have shown that most teachers in health care were not aware of the student's learning disabilities and did not know how to support these students, whose needs might not be understood, ignored or even unwelcomed [29].
Discrimination due to other grounds of discrimination was also assessed in our study. For example, we showed that discrimination due to sexual orientation was significantly more experienced by LGBT + students than heterosexual students (8% vs 2%, p < 0.001). In the study from the US, there was a much higher proportion of the students who reported mistreatment due to sexual orientation (43% in LGBT + and 23.6% in heterosexual, p < 0.001). Females reported significantly higher exposure to these behaviors than their male counterparts [6]. In our study, we also evaluated discrimination due to age and religion, which has not been previously addressed in studies on medical students.
Strength and limitations
The primary strength was that we evaluated discriminations due to gender including gender and sexual harassment, which was directly compared to data from 2002 and 2013 covering altogether a period of 18 years. We also addressed the frequency of discriminating behaviors and who was the main perpetrator. In addition, we assessed several other grounds of mistreatment.
The limitation of the study, in addition to the known constraints with a cross-sectional design, was the low response frequency that poses the same methodological challenges faced in several similar studies [3, 4, 16]. A potential selection bias is a concern and therefore, the generalizability of our results should be considered with caution. However, the study coincided with the start of the Covid-19 pandemic, and we were not able to distribute the survey during lectures as we did in the previous studies 2002 and 2013, where the response frequency was higher.
Importance and implication
Since discrimination seems to be common in medical school, those responsible for medical education must be aware of it. Discrimination has negative consequences on the students' academic motivation and can lead to poor self-esteem and also affect the physical, mental health negatively [30]. Encountering discrimination can lead to lower job satisfaction and productivity and a decline of empathy towards patients [31]. This, in turn, may lead to the inability to care for patients, avoidance of certain specialities or those in particular affected as females might quit their job which might lead to reduced workforce diversity in health care [32].
The substantial burden of mistreatment among medical students, in particular females and minorities, should motivate those responsible for academic education to evaluate the existing strategies. The mandatory course regarding gender medicine that medical students attend on their last semester should perhaps be moved to the beginning of the clinical part of medical students' training. This would improve students understanding of which behaviors are discrimination and how to recognize, prevent and respond to them before they enter their clinical clerkships.
A future direction might be to perfrom further follow-up studies among medical students at Uppsala University. We might also determine in which speciality students perceive the highest risk of mistreatment. In addition, a third part could be to invite health professionals to answer questions about their attitudes towards students and their experiences of discrimination. This might trigger reflection and understanding of inappropriate behaviors.