Fig 3 Univariate sensitivity analysis for any at risk group. Variables were changed over their 5% and 95% quantiles, with exception of share of meningitis and empyema, which were varied by 50%. Incidence was altered by varying odds of invasive pneumococcal disease in those with risk factors compared with those without. Bar for lower vaccine efficacy are cut-off for all at risk groups except immunocompromised patients. Please note that the scales of the figures vary. QALY=quality adjusted life year