Table 1 Study characteristics of articles included in the meta-analysis and/or qualitative synthesis
Author, year, reference | Country | Study design | Current season | Prior season | Influenza type | Age group |
|---|---|---|---|---|---|---|
Jimenez-Jorge et al., 2012 [19] | Spain | Test-negative case-control | 2010–2011 | 2009–2010 | H1N1 | All ages |
Martinez-Baz et al., 2013 [20] | Spain | Test-negative case-control | 2010–2011 | 2009–2010 | H1N1 | All ages |
Savulescu et al., 2011 [26] | Spain | Test-negative case-control | 2010–2011 | 2009–2010 | H1N1 | All ages |
Skowronski et al., 2012 [29] | Canada | Test-negative case-control | 2010–2011 | 2009–2010 | H1N1 | All ages |
Syrjanen et al., 2014 [34] | Finland | Cohort | 2010–2011 | 2009–2010 | H1N1 | 18–75 years |
Fu et al., 2015 [17] | China | Case-control | 2012–2013 | 2011–2012 | H1N1 | a) 20–35 months, 1 current dose; b) 20–35 months, 2 current doses; c) 3–6 years |
Gaglani et al., 2016a [18] | United States | Test-negative case-control | 2013–2014 | 2009–2010 to 2012–2013 | H1N1 | ≥9 years |
Ohmit et al., 2016 [22] | United States | Prospective cohort study | 2013–2014 | 2012–2013 | H1N1 | a) 9 and older; b) under 9 years |
Thompson et al., 2014b [36] | United States | Case-control | 2010–2011 and 2012–2013 | 2009–2010 and 2010–2011 | H1N1, H3N2, B | Mean age 30 years |
Skowronski et al., 2014 [30] | Canada | Test-negative case-control | 2011–2012 | 2010–2011 | H1N1, H3N2, B | ≥2 years |
Rondy et al., 2015 [25] | France, Italy, Lithuania, Spain | Test-negative case-control | 2012–2013 | 2011–2012 | H1N1, H3N2, B | ≥18 years |
Skowronski et al., 2014 [28] | Canada | Test-negative case-control | 2012–2013 | 2011–2012 | H1N1, H3N2, B | ≥2 years |
Valenciano et al., 2016 [37] | Germany, Hungary, Ireland, Italy, Poland, Portugal, Romania, Spain | Test-negative case-control | 2014–2015 | 2013–2014 | H1N1, H3N2, B | All ages |
Pebody et al., 2013 [24] | United Kingdom | Test-negative case-control | 2010–2011 | 2009–2010 | H1N1, B | All ages |
Skowronski et al., 2015 [31] | Canada | Test-negative case-control | 2013–2014 | 2012–2013 | H1N1, B | ≥2 years |
McLean et al., 2014 [6] | United States | Test-negative case-control | 2004–2005 to 2012–2013 | Variable | H3N2, B | a) 9–49; b) 50 and older |
McLean et al., 2015 [21] | United States | Test-negative case-control | 2012–2013 | 2011–2012 | H3N2, B | a) 9–17; b) 18–49; c) 50–64; d) 65 and older |
Thompson et al., 2016 [35] | United States | Test-negative case-control | 2012–2013 | 2011–2012 | H3N2, B | a) 2–8 years, 1 dose prior season; b) 2–8 years, 2 doses prior season |
Skowronski et al., 2016 [7] | Canada | Test-negative case-control | 2014–2015 | 2013–2014 | H3N2, B | ≥2 years |
Simpson et al., 2015a [27] | Scotland | Test-negative case-control | 2008–2009 | 9 prior seasons | All influenza | All ages |
Castilla et al., 2011a [15] | Spain | Nested test-negative case- control | 2010–2011 | 2009–2010 | All influenza | All ages |
Ohmit et al., 2014 [8] | United States | Test-negative case-control | 2011–2012 | 2010–2011 | H3N2 | ≥9 years |
Ohmit et al., 2015a [23] | United States | Prospective cohort study | 2012–2013 | 2011–2012 | All influenza | All ages |
Smithgall et al., 2016a [32] | United States | Surveillance | 2013–2014 | 2012–2013 | All influenza | All ages |
Castilla et al., 2016a [16] | Spain | Test-negative case-control | 2014–2015 | 2013–2014 and 2012–2013 | All influenza | All ages |
Sullivan & Kelly, 2013a [33] | Australia | Re-analysis | a) Southern hemisphere 2011; b) Southern hemisphere 2012 | Southern hemisphere 2010 and 2011 | All influenza | All ages |
Petrie et al., 2016 [38] | United States | Test-negative case-control | 2014–2015 | 2013–2014 | H3N2 | ≥18 years |