Using the survey tool “So Jump” [20 ], three authors (X.L, Z.D, and Z.H) drafted a questionnaire (see eAppendix in the Supplement) based on their own extensive experience treating AE and researching the disease within numerous published projects [5 (link)–7 (link), 21 –23 ]. They aligned the questionnaire content to the Chinese Expert Consensus on AE Management [2 ]. The content validity and test-retest reliability of the knowledge section of this questionnaire were assessed (see eTable1 and eMethods in the Supplement) [24 (link)]. The correlation coefficients were 1.0 for content validity and 0.9 for test-retest reliability. The questionnaire contained three parts (Part A, Part B and Part C). More detailed description of the questionnaire can be seen in the eMethods in the supplement. Additional description of terms and definitions used on the survey are explained as follow [25 ]:
House physician: primary title, practice under the guidance and supervision of the attending physician or above.
Attending physician: middle job title, higher than the house physician, lower than the assistant director physician.
Assistant director physician: vice-senior title, equivalent to associate professor, higher than the attending physician, lower than the director physician.
Director physician: senior title, equivalent to professor.
In China, all hospitals are classified into 3 levels: primary, secondary, and tertiary [26 ]. Primary hospitals (primary level, < 100 beds normally) aim to provide basic public health services and consulting for their residents. Secondary (moderate level, 101–500 beds normally) and tertiary (high level, ≥ 500 beds normally) hospitals provide specialized care. In addition, the tertiary hospitals could be divided to academic tertiary hospitals and non-academic tertiary hospitals. Clinicians working in academic tertiary hospitals have duty of conducting clinical/basic research, teaching and tutoring in addition to daily clinical work.
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