Comparison 12. SLIT versus placebo ‐ immunoglobulins.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 IgE levels ‐ post‐treatment	14	1334	Std. Mean Difference (IV, Random, 95% CI)	0.27 [‐0.01, 0.55]
2 IgG levels ‐ post‐treatment	3	590	Std. Mean Difference (IV, Random, 95% CI)	0.95 [0.78, 1.12]
3 IgG4 levels‐ post‐treatment	13	1187	Mean Difference (IV, Fixed, 95% CI)	0.46 [0.29, 0.63]