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Table 1 Sample size and sample distribution for in-depth interviews (IDI) and focus group discussions (FGD)

From: Seasonal influenza vaccine uptake among healthcare workers in tertiary care hospitals, Bangladesh: Study protocol for influenza vaccine supply and awareness intervention

Type of interview method and selection criteria

Category

Target group

No. of the interview in each facility

Total no. of interviews in four hospitals

In-depth interviews (IDIs) participant selection (participants will be selected from years of experience, the domain of expertise and male: female ratio will be maintained)

Vaccinated

With doctors

1

4

With nurses

1

4

With allied health personnel

1

4

Nonvaccinated

With doctors

1

4

With nurses

1

4

With allied health personnel

1

4

Total number of IDI participants

24

Focus group discussions (heterogeneous in the combination of male–female participation; 8–10 participants in each discussion)

Vaccinated

With intern doctors

1

With nurses

1

With allied health personnel

1

Nonvaccinated

With intern doctors

1

With nurses

1

With allied health personnel

1

Total number of FGDs

6