Table 4. Estimates of willingness to pay or willingness to accept in £.

Parameter	WTP/WTA	Upper & lower Confidence Interval
Probability of VAAE	−19.39	−109.49, 15.42
Probability of disease	0.52	0.08, 2.55
Severity of VAAE	−12.15	−46.71, −6.14
Severity of disease	6.91	3.29, 27.39
NIPD	178.29	15.39, 867.38
IPD	588.44	247.11, 2483.43

VAAE: vaccine associated adverse events; NIPD: non-invasive pneumococcal disease; IPD: invasive pneumococcal disease; WTP: willingness to pay; WTA: willingness to accept.