Incidence estimates of laboratory-confirmed influenza death among infants under 6 months of age
| First author (year) | Time period | Number of cases | Denominator | Rate per 100 000 (95% CI) | Adjustment |
| Ampofo (2006)26 | July 2001 to June 2004 | 0 | 25 710 | 0 | None |
| Bhat (2005)7 | September 2003 to May 2004 | 18 | –* | 0.88 per 100 000 population (0.52 to 1.39) | None |
| Broor (2014)35 | August 2009 to July 2011 | 0 | –* | 0 | None |
| Dawood (2010)28 | 2003–2004 to 2007–2008 | 3 | 7 26 886 † | 0.41 per 100 000 person-years (0.11 to 1.12) † | None |
| Libster (2010)40 | May 2009 to July 2009 | 2 | 41 000 | five per 100 000 population (0.82 to 16.1) † | None |
| Madhi (2014)16 | 2011 to 2012 | 0 | 1023 | 0 | None |
| Montes (2005)11 | July 2001 to June 2004 | 0 | 5366 | 0 | None |
| Nelson (2014)44 | April 2005 to March 2011 | 0 | –* | 0 | None |
| Tapia (2016)17 | 12 September 2011 to 28 January 2014 | 0 | 927 ‡ | 0 | None |
*Not reported in original study and insufficient information to compute.
†Estimated by review authors from information reported in original study.
‡Number of person-years contributed by 2041 infants.