Sara van den Berg

65 3 CMV on influenza vaccination: a systematic review Figure 4 Influenza-specific geometric mean titer pre-/post-vaccination ratio (GMR) in CMV-seropositive versus CMV-seronegative participants. Studies are sorted by age of the study population (<65 and >60). Influ- enza strain, study quality and number of CMV-seropositive and CMV-seronegative participants are shown. For each outcome it is shown whether the authors reported a significant difference between the CMV-seropositive and CMV-seronegative groups. The GMR is shown per record for CMV-seropositive (black dot) and CMV-sero- negative (white dot) participants, including 95% CI error bars ( A ) or without 95% CI ( B ). * Data for Turnet er al was not reported for CMV-seropositivity (n=48), but for different CMV-seropositive groups based on height of anti-CMV IgG level. Here, CMV-seropositive high individuals are shown (subgroup of n=48).