Age distribution of IMD cases in Ireland and the two study paediatric hospitals, 2001–2011
| 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age (years) | N* | S† | N | S | N | S | N | S | N | S | N | S | N | S | N | S | N | S | N | S | N | S |
| <1 | 84 (6)‡ | 25 (1) | 66 (5) | 17 (1) | 68 (5) | 15 (1) | 49 (2) | 8 | 52 (3) | 11 (2) | 53 (2) | 10 | 48 (1) | 19 (1) | 42 | 6 | 41 | 15 | 30 (2) | 13 (1) | 30 | 9 |
| 1–4 | 101 (1) | 25 | 81 (3) | 21 (2) | 77 (1) | 18 | 80 (6) | 19 (1) | 76 (2) | 14 (2) | 67 (2) | 18 (2) | 58 (4) | 14 | 58 (3) | 8 | 40 (2) | 12 | 44 (1) | 9 | 27 (1) | 6 |
| 5–9 | 41 | 10 | 26 | 4 | 18 | 3 | 15 | 2 | 15 | 5 | 17 | 6 | 14 | 2 | 12 (1) | 0 | 11 (1) | 3 (1) | 8 (1) | 2 | 9 | 2 |
| 10–14 | 29 (1) | 8 | 22 | 5 | 14 (2) | 1 | 9 | 0 | 12 | 1 | 11 | 0 | 13 | 1 | 9 | 3 | 6 | 1 | 4 | 1 | 4 | 2 |
| 15–19 | 33 (1) | 0 | 23 | 2 | 26 (1) | 2 | 21 | 0 | 19 | 1 | 30 | 0 | 20 (1) | 0 | 17 | 2 | 21 | 0 | 12 | 1 | 7 | 0 |
| Total | 288 (9) | 68 (1) | 218 (8) | 49 (3) | 203 (7) | 39 (1) | 174 (8) | 29 (1) | 174 (5) | 32 (4) | 178 (4) | 34 (2) | 153 (6) | 36 (1) | 138 (4) | 19 | 119 (3) | 31 (1) | 98 (4) | 26 (1) | 77 (1) | 19 |
*N: Cases reported nationally.
†S: Cases reported in our study.
‡(): Deaths.
IMD, invasive meningococcal disease.