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Table 1 Characteristics of included nursing homes and comparisons between the two influenza seasons

From: Effectiveness of annual influenza campaigns and vaccination in reducing influenza burden in nursing homes of Canton Vaud in Switzerland

Institution characteristics

Season 2021-22

Season 2022-23

Both seasons

p-

value1

NHs included, N

20

19

363

-

Cumulative 2 number of NH beds, N

1217

1405

- 4

-

Cumulative 2 number of residents, N

1188

1363

- 4

-

Cumulative 2 number of

HCWs, N

1995

2081

- 4

-

NH beds, median (IQR)

52.5 (36)

76 (48)

61 (41.5)

0.13

NH residents, median (IQR)

49.5 (33.2)

76 (43.5)

61 (37.5)

0.16

NH HCWs, median (IQR)

76.5 (61.5)

101 (71.5)

95 (79.5)

0.27

Percentage of occupied beds, median (IQR)

98.8 (3.5)

100 (2.1)

100 (2.6)

0.22

HCWs per NH-bed,

median (IQR)

1.5 (0.5)

1.5 (0.5)

1.5 (0.5)

0.94

NHs with an IPC link nurse,

N (%)

14 (70)

17 (89)

31 (79)

0.13

  1. Calculations for both periods have been done over 39 NHs (3 institutions reported cases in both influenza seasons). N: number, %: percentage, NH: nursing home, IQR: interquartile range, HCW: healthcare worker, IPC: infection prevention and control
  2. 1 Comparisons between the two influenza seasons
  3. 2 Sum of all included NHs
  4. 3 3 NHs announced incidents in both seasons
  5. 4 Not available
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Antimicrobial Resistance & Infection Control

ISSN: 2047-2994

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