Fig. 2: Forest plot of meta-analytic results using logOR as effect estimate.
From: Association between ADHD and vision problems. A systematic review and meta-analysis

Visual representation of pooled odds ratios (logOR) for each meta-analysis on studies that reported number of people with and without a certain vision disorder/problem in people with ADHD and without ADHD, or the number of patients with ADHD in people with and without vision problems/disorders (average study quality for each meta-analysis is reported in the central panel).