Table 2

Summary of data synthesis

ExposureOutcomeStudies (n)Patients (n)Pooled estimate (RR)95% CI95% PIHeterogeneity (I2)
Sex
(male vs female)
Infection816 2861.081.03 to 1.12NA0%
Severe disease3578321.181.10 to 1.27NA15%
ICU1114931.381.09 to 1.74NA32%
Death1412 7921.501.18 to 1.910.73 to 3.1062%
Age
(70+ vs 70−)
Infection412 9961.651.50 to 1.81NA35%
Severe disease711022.051.27 to 3.320.42 to 9.9387%
ICU56882.701.59 to 4.600.47 to 15.769%
Death592223.612.70 to 4.841.51 to 8.6760%
  • ICU, intensive care unit; NA, not applicable; PI, prediction interval; RR, risk ratio.