Table 3 Influenza vaccination coverage of Healthcare workers (HCW). RR and RR adjusted (RRa) for potential determinants

All healthcare workers

31.9

29.7-34.1

Nursing home category

  Public

26.3

23.9-28.8

ref

ref

  Private

48.7

43.9-53.4

1.8

1.5-2.0

<0.001

1.3

1.1-1.5

0.001

  Private non- profit

31.7

27.8-35.6

1.2

1.0-1.3

0.045

1.00

0.87-1.17

0.9

Affiliated to a hospital

  Yes

25.5

22.5-28.4

0.7

0.6-0.8

<0.001

0.8

0.7-0.9

0.001

  No (or ‘I don’t know’)

36.0

33.0-38.9

ref

ref.

Size of nursing home (number of beds)

  <100 beds

36.2

33.7-38.7

ref

ref.

  >= 100 beds

24.6

21.3-28.0

0.7

0.6-0.8

<0.001

0.9

0.8-0.9

<0.001

Geographical area

  Metropolitan France

32.1

29.9-34.3

ref

ref

  Overseas territories

13.8

7.2-20.3

0.4

0.3-0.6

<0.001

0.4

0.3-0.6

<0.001

Presence of a care coordinator (physician)

  Yes

32.9

30.4-35.4

1.3

1.1-1.6

0.003

1.4

1.1-1.7

0.002

  No

26.0

21.5-30.5

ref

ref

Presence of a nursing coordinator

  Yes

32.5

30.3-34.8

1.4

1.1-1.8

0.003

  No

22.1

16.3-27.9

ref

Hygiene expert in nursing home

  Yes

32.0

29.2-34.8

1.1

1.0-1.2

0.2

  No

31.8

28.3-35.3

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Measures implemented in nursing home

Provision of influenza vaccine free of charge for professionals

  Yes

32.2

30.0-34.4

1.6

1.1-2.4

0.02

1.4

1.1-1.8

0.004

  No

18.8

10.8-26.8

ref

ref

Organization of promotion of influenza vaccination for professionals

  Yes

32.0

29.8-34.2

2.4

0.7-8.4

<0.2

  No

11.8

2.2-21.5

ref

Organization of influenza vaccine promotion

   Posters

  Yes

31.7

29.4-34.0

1.0

0.8-1.2

0.9

  No

35.7

28.8-42.6

ref

Videos or games

  Yes

48.2

39.1-57.3

1.6

1.4-1.9

<0.001

1.4

1.2-1.6

<0.001

  No

30.5

28.3-32.7

ref

ref

Collective information sessions

  Yes

36.3

33.0-39.3

1.6

1.4-1.8

<0.001

1.3

1.1-1.5

0.002

  No

23.8

21.2-26.4

ref

ref

Individual information sessions

  Yes

39.3

33.6-44.9

1.3

1.1-1.5

0.002

1.6

1.1-2.1

0.006

  No

30.3

28.0-32.6

ref

ref

Point of contact for vaccination nominated within the nursing home ¹⁾

  Yes

37.4

32.8-42.0

1.3

1.1-1.5

<0.001

1.7

1.3-2.2

<0.001

  No

29.3

26.9-31.6

ref

ref

Promotion of influenza vaccination : contents

Information about influenza vaccines

  Yes

34.7

31.8-37.6

1.3

1.1-1.5

<0.001

1.2

1.0-1.3

0.03

  No

27.1

23.7-30.4

ref

ref

Information about influenza

  Yes

32.8

30.3-35.2

1.2

1.0-1.5

<0.05

  No

27.9

23.1-32.7

ref

Information about the collective benefit of vaccination

  Yes

34.9

32.0-37.8

1.5

1.3-1.7

<0.001

  No

25.0

22.0-28.1

ref

Information about the individual benefit of vaccination

  Yes

34.3

31.5-37.0

1.4

1.2-1.7

<0.001

  No

25.4

22.4-28.4

ref

Analysis of organizational barriers to vaccination and implementation of an action plan

  Yes

33.6

29.6-33.5

1.2

1.0-1.4

0.01

  No

31.1

28.6-33.5

ref

In-house multidisciplinary group on vaccination

  Yes

32.0

27.7-36.3

1.1

0.9-1.2

0.5

  No

31.9

29.4-34.4

ref

The director, the care coordinator (physician) or the nursing coordinator are involved and support the vaccination campaign

  Yes

32.9

30.5-35.3

1.5

1.2-1.9

<0.001

1.3

1.0-1.5

0.02

  No

23.2

18.5-27.8

ref

ref