Table 4

Adjusted associations between influenza vaccination status and outcomes during influenza season

Age groupDiabetesILIPI hospitalisationsALL hospitalisations
IRR*CIp ValueIRRCIp ValueIRRCIp Value
Working ageDM0.99(0.97 to 1.01)0.4020.57(0.46 to 0.72)0.0000.72(0.68 to 0.76)0.000
ElderlyDM0.87(0.84 to 0.90)0.0000.55(0.47 to 0.66)0.0000.67(0.64 to 0.70)0.000
No DM0.88(0.85 to 0.90)0.0000.45(0.37 to 0.55)0.0000.66(0.63 to 0.69)0.000
  • *IRR=incidence rate ratio (vaccinated vs not vaccinated), adjusted for sex, age (20-year age bands), income (upper vs lower), pneumococcal vaccination receipt, number of medical visits in the previous year, number of minor ADGs in the previous 2 years, number of major ADGs in the previous 2 years, month and year. p=0.000 refers to p<0.001.

  • ALL, All-cause hospitalisations; DM, Diabetes mellitus; ILI, Influenza-like illness; PI, Pneumonia and influenza hospitalizations.