Comparison 2. Montelukast versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Apnoea/hypopnoea index	2	103	Mean Difference (IV, Random, 95% CI)	‐3.41 [‐5.36, ‐1.45]
2 Desaturation index	2	103	Mean Difference (IV, Random, 95% CI)	‐2.50 [‐5.53, 0.54]
3 Respiratory arousal index	2	103	Mean Difference (IV, Random, 95% CI)	‐2.89 [‐4.68, ‐1.10]
4 Nadir oxygen saturation	2	103	Mean Difference (IV, Random, 95% CI)	4.07 [2.27, 5.88]