| |
IRR
|
95% confidence interval
|
p value
|
|---|
|
Unita
|
|
- Non-risk unit
|
1
|
–
|
–
|
|
- Risk unit
|
1.13
|
0.64–2.00
|
0.681
|
|
Epidemic seasonb
|
|
- 2014–2015
|
1
|
–
|
–
|
|
- 2015–2016
|
1.17
|
0.63–2.16
|
0.619
|
|
- 2016–2017
|
0.96
|
0.55–1.67
|
0.881
|
|
- 2017–2018
|
1.18
|
0.70–2.00
|
0.540
|
|
- 2018–2019
|
1.52
|
0.91–2.56
|
0.111
|
|
Risk unit * epidemic seasonc
|
|
- Risk unit * 2014–2015
|
1
|
–
|
–
|
|
- Risk unit * 2015–2016
|
0.56
|
0.23–1.34
|
0.191
|
|
- Risk unit * 2016–2017
|
0.39
|
0.19–0.81
|
0.011
|
|
- Risk unit * 2017–2018
|
0.50
|
0.24–1.03
|
0.060
|
|
- Risk unit * 2018–2019
|
0.48
|
0.23–0.97
|
0.042
|
|
Total number of influenza cases
|
1.07
|
1.06 – 1.07
|
< 0.0001
|
- Table presents the number of nosocomial influenza cases analyzed by Poisson regression over the 5 epidemic seasons considered from 2014 to 2019, at Grenoble Alpes University Hospital
- Bold is used to highlight statistically significant results
- IRR incidence rate ratio
- aFor the reference season 2014/2015
- bFor the non-risk units
- cInteraction term
