Group
Tx-vac-flu (n=18) Tx-no vac-flu (n=6) Healthy-flu (n=12) Tx-vac-no flu (n=13)
Type of Transplant
Liver
Heart
Kidney
Lung
HSCT
Kidney + pancreas
Liver + pancreas
Liver + kidney

1
5
2
7
2
1
0
0

2
1
0
0
3
0
0
0
N/A
0
1
1
4
3
2
1
1
Age (years) {median [IQR]} 61 [54 - 65] 50.5 [44 - 57]* 49.5 [34 - 60] 53 [47 - 59]#
Gender
Female
Male

7
11

1
5

7
5

4
9
Duration between transplant
and influenza (days) {median [IQR]}
1,410 [261-3,467] 175 [40-1,064]** N/A N/A
Tx-vac-flu=Transplant recipients who developed influenza despite influenza vaccination
Tx-no vac-flu=Transplant recipients who developed influenza in the absence of influenza vaccination
Healthy-flu=Healthy people who developed influenza
Tx-vac-no flu=Transplant recipients who received influenza vaccination and did not develop influenza
HSCT=Hematopoietic stem cell transplant. IQR=Interquartile range. N/A=not applicable
*P=0.02, P=0.04, #P=0.02, **P=0.18; all compared to the tx-vac-flu group.
Table 1: Demographic data.