In this survey study, the study objects were the trainees from some tertiary comprehensive hospitals in Chongqing who completed the standardized residency training during 2017-2018.

A self-designed questionnaire was used. The survey of residency trainees was based on an anonymous and self-filling mode, and mainly involved the followed questionnaire contents: general data, training satisfaction and post-training employment plan of trainees.

SPSS21.0 software was used for data processing and statistical analysis of questionnaires. The descriptive analysis and χ² test were adopted. P < 0.05 suggested that a difference was statistically significant.

Totally 1050 trainees were selected by cluster sampling in this study. And 1050 (100%) answered questionnaires were collected, including 980 (93.3%) eligible questionnaires from 785 trainees with Bachelor education, 139 trainees with Master education and 34 trainees with Doctor education. Other general data of trainees are shown in Table 1.

The statistical analysis in three aspects of residency training management, security and satisfaction involved daily management, theoretical training in Table 2, clinical teaching, scientific research skills training, training assessment, and salary. In respect of the future occupational career, the standardized residency training demonstrated a positive impact in totally 87.14% (854/980) trainees but a negative effect in 5.31% (52/980) trainees, and an unknown influence in 7.55% (74/980) trainees. The questionnaire score of 980 trainees was 14 - 28 scores, specifically 24 - 28 scores in 62.45% trainees, 18 - 24 scores in 20.20% trainees and 14 - 18 scores in 17.35% trainees; the overall satisfaction of residency training was high.

As shown by the analysis of questionnaire data in Table 3, the insufficiency in the disease type and the number of cases at partial professional bases was the most prominent problem (reported by 59.81% (580/980) trainees), followed by unreasonable rotation arrangement (41.22% (404/980) trainees), insufficient

clinical skills training (31.12% (305/980) trainees), differential treatment of training links and salary from the training bases to the trainees in the current units and from other units (19.69% (193/980) trainees), random selection of teachers by the residency training bases (20.31% (199/980) trainees), low importance of residency training bases to the training management (11.22% (110/980) trainees) and no standard training assessment (7.96% (78/980) trainees).

The analysis revealed that over a half of trainees thought that the teachers paid low importance to the residency training teaching work and it was a popular phenomenon to focus on the clinical teaching but lack the comprehensive skills training, meanwhile a part of teachers were junior physicians or refresher physicians in the hospitals who had no teaching qualification specified in the national regulations. The following problems were prominent: the teachers were unfamiliar with the contents and requirements of residency training during training; the number of residency trainees exceeded the proportion specified in the national regulations; and the teachers had no sufficient teaching experience. In the view of 8.88% - 43.57% trainees, it was urgent for teachers to improve the clinical skills teaching level, ward round teaching level, course teaching level, PPT document making level, and medical document writing teaching skills. In the arrangement of public courses at the residency training bases, only 1/3 trainees felt very satisfactory about the public training courses arranged by the hospitals. Other outstanding problems included inflexible course teaching time and pattern, no content stratification of public courses according to the education level of trainees, as well as repeated and crossed contents of public courses. In general, compared with the students who did not participate in the residency training, over 50% trainees completing the residency training of nearly 3 years demonstrated significant improvement in the clinical skills, doctor-patient communication skills, disease diagnosis and differential diagnosis skills, disease treatment plan making, ward round skills, critical patient salvage skills, and test result interpretation, while no obvious improvement in the scientific research quality and medical English. The residency training satisfaction and the relevant problems are shown in Table 4.

The survey showed that the trainees had low satisfaction to the residency training salary, holidays and accommodation, of which 55.41% (543/980) complained about low salary unaffordable to daily expenses, 30.20% (296/980) reflected no additional catering and transportation allowance from the residency training bases, 32.96% (323/980) and 42.24% (414/980) had a complaint of too short holidays and poor accommodation of residency training, respectively.

The trainees at different education levels showed high satisfaction to the residency training management and clinical skills training in Table 5; however, the satisfaction of doctor-patient communication skills training and scientific research skills training was lower in Bachelor students than in Master and Doctor students (P < 0.05), and the satisfaction of clinical work pressure and training salary in Doctor students was significantly lower than that in other trainees (P < 0.05). There was no statistically significant difference in the residency training security (e.g., training time and accommodation) among the trainees at different education levels (P > 0.05).

Based on Table 6, the trainees at different education levels demonstrated a significant difference in the employment plan. Compared with Bachelor students who had stronger intention to work in the units at different levels (including secondary hospitals, community health service centers and township hospitals), Master and Doctor students were more prone to choose the tertiary hospitals and had larger intention to continuously participate in the standardized specialist training after the completion of residency training, and the difference was statistically significant (P < 0.05). The Master and Doctor students demonstrated a higher desire of employment in the urban areas of Chongqing (P < 0.05), while most Bachelor students were more willing to get a job from the medical institutions in the outer suburbs and counties of Chongqing (P < 0.05). An optimistic

attitude to post-training employment was observed in 81.94% (803/980) trainees, and 86.84% (851/980) trainees wished the governments and residency training bases could issue a series of measures to help their better employment.

In this study, most trainees participating in the standardized residency training were 22 - 30 years old and bored multiple pressures of living, learning, family, marriage and employment ( Tang, Chen, Liu, et al., 2012). The hospital managers shall understand the actual situations of trainees and help them to successfully complete the residency training from the prospective of service providers. Firstly, the management institutions shall pay importance to the residency training management, strictly control the residency training quality, carry out the systematic training of teachers, make the performance assessment of teaching achievements, and practically improve the overall teaching level of the teacher team. Secondly, they shall avoid the repeated training and differential treatment in the training courses and rotation arrangement and make the individualized rotation arrangement for trainees with difficulties through possible coordination. Finally, they shall standardize various assessment procedures and keep the assessment process and results open and transparent, guarantee the supply of training devices and places to enable the practical application of knowledge learned by the trainees, provide timely feedback about the training satisfaction of trainees, and actively hear the suggestions and comments of residency training management from the trainees, thus truly realizing the people-oriented and humanistic care-emphasized management ( Zhang, Ouyang, Xu, et al., 2015; Zheng, Wang, Chen, et al., 2011).

This survey showed that a part of residency trainees felt unsatisfactory and had worries about the teaching qualification, teaching awareness, clinical level, teaching methods, and course teaching capability. The reasons may be as follows: 1) the overall level of the teacher team at various training bases is varying; 2) the State and various training bases have less input to the construction of the residency training teacher team; 3) it is popular that the junior physicians take charge of teaching tasks, thus failing to guarantee the residency training quality; 4) there is no practical and feasible residency training teacher performance assessment system, thus resulting in low teaching initiative of teachers and a decline of residency training quality; 5) there is a rigid institutional system for residency training management and the unreasonable arrangement of teaching time and courses, which causes a decrease of residency training satisfaction. It is suggested to continuously strengthen and complete the construction of the residency training teacher team from the prospective of top-down design. For example, various training bases shall establish a practical and feasible performance assessment system, so that the residency training teaching work is included into the teacher performance assessment, thus improving the teaching initiative of teachers and the quality of residency training; the management department shall positively transform their functions, consider the actual difficulties of residency trainees, and replace management with service, so as to improve the satisfaction and acquisition of residency trainees.

After residency training, most trainees demonstrated great improvement in the clinical skills, critical patient salvage skills, test result interpretation and doctor-patient communication skills, but unremarkable improvement in the scientific research skills and medical English, which may be associated with such factors as heavy clinical tasks of trainees during training, no importance of teachers to the scientific research skills and medical English training, and even no scientific research skills training qualification of teachers because of their insufficient scientific research skills ( Lin, Deng Yan, et al., 2005; Qu, 2016). After analyzing the residency training satisfaction of trainees at different education levels, we found larger improvement of scientific research skills and higher satisfaction in Doctor students than in Master and Bachelor students. The possible reason may be as follows: Doctor students finished the systematic scientific research skills training in their previous doctoral study and the senior physicians will actively invite Doctor students with excellent scientific research skills to participate in the research groups for certain scientific research work, while Master and even Bachelor students with poor scientific research skills are unable to take charge of complicated and high-intensity scientific research work and thus have few chances to contact the scientific research; as a result, the scientific research skills and medical English training have no significant effect. It is suggested that various bases, management departments and teachers pay enough importance to the non-clinical skills training in the future training work, and carry out the literature read and sharing, subject design discussion and various scientific research lectures and activities to improve the scientific research skills and medical English of trainees and promote the comprehensive development of residents ( Chen, 2008; WANG Chan, MA Xiao-jing, JIAO Qing-shi, et al., 2017).

Post-training employment is a long-standing focus problem concerned by residency trainees and the society. As for how to improve the employment satisfaction and resolve the employment difficulty of residency trainees, it is an important topic faced jointly by the State, governments and residency training bases. Our survey showed that over 80% trainees had an optimistic attitude to post-training employment. As shown by the further analysis, the majority of standardized residency training participants in Chongqing were prone to work for medical institutions in the urban areas or outer suburbs and counties of Chongqing. After analyzing the correlation between education level and employment plan, we found that the trainees at a higher education level were more prone to get a job from the tertiary hospitals in the urban areas of Chongqing; the employment in the community health service centers and township hospitals was not considered by Master and Doctor students, and that of medical institutions in the outer suburbs and counties of Chongqing was rarely considered by these students. This is associated with the fact that compared with other medical graduates, the medical talents at higher education level posses better comprehensive skills and thus have more job options and more chances to be employed by the high-level comprehensive hospitals ( Wei, Yin, Liu, et al., 2017). However, the residency training bases and management departments shall properly guide the residency trainees at different education levels by policy and employment knowledge education to seek for their occupational development in the medical institutions at different levels and in different areas, and the governments also shall issue the corresponding measures, e.g., promoting the salary and resolving the housing and children enrollment to facilitate the flow of excellent medical talents to the grass-root medical units. When releasing the employment pressure of residency training graduates, the residency training units shall do a good job in the psychological counseling and employment guidance of trainees by live recruitment fairs, real-time online publication of employment information and other methods, and provide assistance for the successful employment of trainees, thus practically improving the employment satisfaction ( Zhang, Fang, & Zhao, 2014).

This study has the following shortcomings: firstly, there are too many questions and the overlapping of partial questions and contents in respect to the questionnaire design; secondly, the trainees included in the questionnaire survey were mainly from the residency training bases in the urban areas of Chongqing, and there was an insufficient number of trainees from the residency bases in various outer suburbs and counties, thus the conclusions may have a certain bias. In conclusion, the standardized residency training is an important strategic measure for the clinical construction in China. There are many problems urgently to be resolved which exist in the residency training work. Only by continuously enhancing the people-oriented training management and security, improving the training contents, promoting the training quality and increasing the employment satisfaction, more medical talents with excellent skills and comprehensive development can be cultivated.