Table 1 Dimensions one to five and their indicators

Dimension 1. Key experience

1.1 Introduction of new technique and construction of laboratory network

1.1.1 Introduction of new technique and construction of laboratory network

Open question

1.2 Prevention and control of major infectious diseases

1.2.1 Prevention and control of major infectious diseases

Open question

1.3 Maternal and child health

1.3.1 Maternal and child health

Open question

1.4 Health emergency

1.4.1 Health emergency

Open question

1.5 Construction of public health institute

1.5.1 Construction of public health institute

Open question

1.6 Prevention and control of non-communicable diseases

1.6.1 Prevention and control of non-communicable diseases

Open question

1.7 Big data and disease surveillance

1.7.1 Big data and disease surveillance

Open question

1.8 The experience summarized are correct

1.8.1 The experience summarized are correct

Ordinal variable

1.9 The experience summarized are comprehensive

1.9.1 The experience summarized are comprehensive

Ordinal variable

Dimension 2. Capacity for experience demonstration

2.1The demonstration is accurate

2.1.1The demonstration is accurate

Ordinal variable

2.2 The demonstration is comprehensive

2.2.1 The demonstration is comprehensive

Ordinal variable

2.3 The demonstration has various forms

2.3.1 Has exhibition hall and posters

Ordinal variable

2.3.2 Has PPT for introduction

Ordinal variable

2.3.3 Has video for introduction

Ordinal variable

2.4 The rationality of the agenda

2.4.1 The rationality of the agenda

Ordinal variable

2.5 Language capability

2.5.1 Has English version at least

Ordinal variable

2.5.2 Has personnel who can introduce in English

Ordinal variable

Dimension 3. Capacity for logistic support

3.1 Human resource

3.1.1 Has special working group

Ordinal variable

3.1.2 The division of the working group is comprehensive

Ordinal variable

3.1.3 The working group can be mobilized timely

Ordinal variable

3.2 Reception site

3.2.1 Has reception site

Ordinal variable

3.3 Food and accommodation

3.3.1 Capacity to arrange food for visitors

Ordinal variable

3.3.2 Capacity to arrange accommodation for visitors

Ordinal variable

3.4 Security

3.4.1Has security for visitors

Ordinal variable

3.5 Respect for the cultural identity of visitors

3.5.1 Respect for the cultural identity of visitors

Ordinal variable

Dimension 4. Capacity for host short-term study

4.1 Specific technical expertise

4.1.1 Specific technical expertise

Open question

4.2 The level of specific technical expertise

4.2.1 The level of specific technical expertise

Ordinal variable

4.3 Hardware conditions for short-term study

4.3.1 Has fixed and sufficient space

Ordinal variable

4.3.2 has necessary equipment and instruments

Ordinal variable

4.3.3 Necessary reagent consumables are available

Ordinal variable

4.4 Software conditions for short-term study

4.4.1 Has teachers for short-term study

Ordinal variable

4.4.2 Has short-term study plan

Ordinal variable

4.4.3 Has research work involving short-term study visitors

Ordinal variable

4.4.4 Short-term study visitors can continue cooperation after returning home

Ordinal variable

4.5 Description of core theory contents and class hours

4.5.1 Description of core theory contents and class hours

Open question

4.6 Description of experiment operation contents and class hours

4.6.1Description of experiment operation contents and class hours

Open question

4.7 Description of practical operation contents and class hours

4.7.1Description of practical operation contents and class hours

Open question

Dimension 5. Significance of hub construction

5.1 Reception experience

5.1.1 Reception experience

Ordinal variable

5.2 Significance to host institute

5.2.1 Significance to host institute

Open question

5.3 Significance to participating individual

5.3.1 Significance to participating individual

Open question

5.4 The expectation on hub construction

5.4.1The expectation on hub construction

Open question