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Table 2 The incidence of invasive meningococcal disease (IMD) and relative risk by demographics for persons diagnosed with HIV and for the uninfected population in England during 2011–2013

From: Risk of invasive meningococcal disease in children and adults with HIV in England: a population-based cohort study

  Persons diagnosed with HIV Uninfected population    
  Cases Person-years Incidence Cases Person-years Incidence Relative risk 95 % CI P value
Overall 14 213,725 6.6 2,339 160,252,992 1.5 4.5 (2.7, 7.5) <0.001
Age at meningococcal infection (years)
 <16 1 2,415 41.4 1,395 30,366,823 4.6 9.0 (1.3, 64.0) 0.008
 16–24 3 6,703 44.8 314 18,760,191 1.7 26.5 (8.6, 81.8) <0.001
 25–44 5 113,183 4.4 159 43,536,541 0.4 11.8 (5.0, 27.9) <0.001
 45–65 5 84,462 5.9 225 40,505,320 0.6 10.4 (4.4, 24.9) <0.001
 ≥65 0 6,962 0.0 238 27,084,317 0.9    
 Not reported     8      
Sex          
 Male 7 142,479 4.9 1,166 78,858,090 1.5 3.3 (1.6, 6.9) <0.001
 Female 7 71,246 9.8 1,159 81,394,902 1.4 6.9 (3.3, 14.4) <0.001
 Not reported     14      
Year of meningococcal diagnosis
 2011 6 67,649 8.9 880 53,039,551 1.7 5.3 (2.4, 11.8) <0.001
 2012 3 71,316 4.2 738 53,422,384 1.4 3.0 (1.0, 9.4) 0.043
 2013 5 74,760 6.7 721 53,791,057 1.3 5.0 (2.1, 11.9) <0.001