Table 3.

Overall highest level of evidence for each intervention.152, 153, 154, 155, 156, 157 BCG: Bacillus Calmette-Guérin; BMI = body mass index; DLE: Dialyzable leukocyte extract; EPA: Eicosapentaenoic acid (an omega-3 fatty acid); GLA: gamma linoleic acid; I2: Heterogeneity; IgG: Immunoglobulin G; ICU: intensive care unit; IU: International units; IRR: Incidence rate ratio; LPS: Lipopolysaccharide; MCV: measles containing vaccines; MRR: Mortality Rate Ratio; MV: mechanical ventilation; OR: Odds ratio; RR = relative risk; RSV = respiratory syncytial virus; (U)RTI = (Upper) respiratory tract infection; TNF-: Tumor necrosis factor alpha