Scale construction
The A, B, C, and D items refer to questions corresponding to the four dimensions of the definition of global competence on the MS-GCAS (Figure 1): the capacity to examine local, global and intercultural issues (A1-A6); to recognize and respect others’ mindsets and conceptions of the world (B1-B4); to openly and adequately interact with people who have diverse cultural backgrounds (C1-C5); and to take action for mutual welfare as well as sustainable development (D1-D5). The scoring procedures and specific scoring information for each item are shown in Additional file 3. The distribution of the different responses to each MS-GCAS item is shown in Figure 3.
Participant Profiles
The questionnaires were administered in 10 medical schools in China: Peking Union Medical College, Peking University Health Science Center, Xiangya School of Medicine (Central South University), Tongji Medical College (Huazhong University of Science and Technology), Southern Medical University, Shanghai Medical College of Fudan University, West China Medical Center (Sichuan University), Shanghai Jiao Tong University School of Medicine, Zhejiang University School of Medicine and Zhongshan School of Medicine. A total of 1062 valid questionnaires were collected, and the number of respondents from each college was balanced: the maximum number was 124 (Peking Union Medical College), and the minimum number was 83 (Xiangya School of Medicine, Central South University). Table 1 presents the respondents’ characteristics. Among the participants, 459 (43.2%) were male, and 603 (56.8%) were female. Students currently in the premedical course, basic medicine course, clinical skills course, and clinical practice and internship phases constituted 29.8%, 27.5% and 22.5% and 20.2% of the participants, respectively. In terms of academic grade ranking, 40.5% of the participants were in the upper 1/3, and 43.5% were in the middle 1/3. The participants had been provided with various types of exchange programs, including clinical exchange, scientific research exchange, and public health exchange. A total of 85.5% of the participants had participated in at least one exchange program, and the popular exchange destinations included the US, Canada, the UK, Hong Kong, etc. More background information on the participants’ exchange experiences is presented in Additional file 4.
Construct Validity
An exploratory factor analysis was run on 21 items, and the results are shown in Table 2. The scree plot showed a hitch on the fifth factor; therefore, a four-factor solution was formulated, which explained 55.956% of the total variance. The initial eigenvalues of the components were 5.880, 2.436, 1.663 and 1.212. After rotation, the factors explained 17.834%, 16.524%, 14.813% and 6.787% of the variance.
To better interpret the factors, factor loadings larger than 0.50 are presented in shadows. The items with the highest factor loadings on the first factor were the six items concerning the ability to consider other people’s perspectives and behaviors from multiple perspectives (B1-B4) and the ability to deliver high-quality care to patients with diverse needs and backgrounds as well as flexibly adapt one’s behaviors and communication to different cultures (C1, C2). The first factor represented dimensions A and B of the definition of global competence. These two dimensions are strongly interdependent by definition because communicating in open, appropriate, and effective ways requires recognition and respect of different cultural values or beliefs. The second factor involved aspects concerning young people’s active and responsible roles in society (D1-D5). The third factor focused mainly on the capability to effectively form one’s own views on the environmental, social and economic determinants of global health issues by drawing on one’s knowledge of the world (A1-A6). The fourth factor consisted of three items related to language level and communication frequency with people from other countries (C3-C5).
Reliability
The reliability of the 21-item MS-GCAS was high, with a Cronbach’s alpha of 0.856. The Cronbach’s alphas of the four factors identified in Table 2 were 0.852, 0.874, 0.787 and 0.335.
Analysis of the Correlates of the MS-GCAS Score
The analysis of the associations between the different variables and the MS-GCAS score are shown in Table 3. School education plays an essential role in medical students’ global competence development, as it can provide overseas study opportunities and teach students how to stay informed and critically think about important issues related to global health. Schools foster students’ appreciation for diverse communities, languages, and culture by encouraging intercultural activities. Therefore, we developed an 8-item scale (Additional file 5) based on official manuals(12) and literature reviews(2, 16) for the preliminary evaluation of the effect of school education on global competence. In the univariable analyses (n = 1062), gender (p < 0.001), willingness to go abroad (p < 0.001), overseas program duration (p = 0.002), grade ranking (p < 0.001) and school education score (p < 0.001) were found to be significant predictors of the MS-GCAS score (Table 3).
Multivariable Regression
In the multiple regression analyses (Table 4), school education score, willingness to go abroad, overseas program duration and grade ranking were positively associated with the MS-GCAS score (R2 = 0.171).
Students with higher grade rankings (those in the upper 1/3) had better results than those with lower rankings (those in the middle 1/3 and lower 1/3), as shown in Table 3. The upper 1/3 group had the highest scores on subscale A (15.23 ± 3.05, p < 0.001), subscale B (17.60 ± 2.31, p < 0.001) and subscale C (16.84 ± 2.53,p < 0.001). In particular, students in the upper 1/3 group had significantly higher scores on subscale D (20.65 ± 3.83) than those in the middle 1/3 group (18.55 ± 3.83) and the lower 1/3 group (17.20 ± 4.43), with a p-value less than 0.001. Therefore, school education has a strong correlation with students’ capacity to take action for mutual welfare and to build a more just, peaceful, inclusive and environmentally sustainable world. Courses related to social activity organizing skills are recommended in Chinese eight-year clinical medical programs to encourage students to initiate and take part in global health campaigns. Students should realize that they can have multiple influences on health development from the local to the global levels.