Subgroup analysis of pooled prevalence of olfactory.

Subgroup analysis of pooled prevalence of olfactory.</p

Flow diagram summarizing the selection of eligible studies.

Flow diagram summarizing the selection of eligible studies.</p

Quality assessment of the included studies based on the JBI checklist.

Quality assessment of the included studies based on the JBI checklist.</p

Minimal anonymized data used to conduct the meta-ananlysis.

(XLSX)</p

Overall level of discrimination.

(JPEG)</p

The pooled prevalence of olfactory among patients with MS.

The pooled prevalence of olfactory among patients with MS.</p

Quality assessment of the included studies using the JBI checklist.

(JPEG)</p

Overall level of identification.

(JPEG)</p

Level of heterogeneity and publication bias amongst the included studies.

Level of heterogeneity and publication bias amongst the included studies.</p

Overall level of threshold.

(JPEG)</p