Reference | Year | Country | Study population | ||
Age range yrs | No OM-85 | No placebo | |||
Schaad [16] | 2002 | Switzerland/Germany | 3–8 | 120 | 100 |
Jara-Pérez [17] | 2000 | Mexico | 6–13 | 99 | 100 |
Gutiérrez-Tarango [18] | 2001 | Mexico | 1–12 | 26 | 28 |
Collet [19] | 1993 | France | 0.5–2 | 210 | 213 |
Paupe [20] | 1991 | France | 0.5–19 | 61 | 55 |