Table 1

Survey responses in flu vaccinated and unvaccinated National Health Service (NHS) staff

Survey statement (1—strongly agree, 5—strongly disagree)	Vaccinated median (IQR) (n=2073)	Unvaccinated group median (IQR) (n=986)	Multivariate logistic regression (p value)
It was easy for me to get the flu vaccine where I work	1 (1–2)	2 (1–3)	<0.001
Flu vaccination for staff is seen as important where I work	2 (1–2)	2 (2–3)	0.48
The flu vaccine will protect me from getting flu	2 (1–2)	3 (2–4)	<0.001
I am confident advising patients about the flu vaccination	2 (2–3)	3 (2–4)	0.01
Having the flu vaccination sets a good example to patients	2 (1–2)	3 (2–4)	0.04
The flu vaccination will make me unwell	4 (4–5)	3 (2–4)	<0.001*
I am likely to come to work even if I am unwell	2 (2–3)	2 (2–4)	0.02
I think flu vaccination should be mandatory for NHS staff	2 (2–4)	4 (3–5)	0.02
My line manager encouraged me to get vaccinated	2 (2–4)	3 (2–4)	0.001
I worry that the flu vaccination will cause serious side effects	4 (4–5)	3 (2–4)	0.54
Getting a flu vaccination is too much trouble for me	5 (4–5)	4 (4–4)	<0.001*
It is important to help colleagues by not being off work with flu	2 (1–2)	2 (2–3)	0.03
I am put off having flu vaccination by fear of needles	5 (4–5)	5 (4–5)	0.25
I cannot have flu vaccination because I am allergic	5 (4–5)	5 (4–5)	0.88
People working in healthcare should have the flu vaccination every year	2 (1–2)	3 (2–4)	<0.001*
The flu vaccine will protect my family from getting flu	2 (2–3)	3 (2–4)	0.03
The flu vaccine will protect patients from getting flu	2 (1–2)	2 (2–3)	0.01
Flu is a serious disease	2 (1–2)	2 (2–3)	0.96
I am at risk of getting flu	2 (1–3)	3 (2–4)	<0.001

The p values are shown for multivariate logistic regression that had an r² of 0.60 for the association between survey variables and having had the flu vaccination. Variables with p≤0.01 from the logistic regression were then entered into a stepwise model, with those retained marked by *.