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. 2020 Dec 1;324(21):2177–2186. doi: 10.1001/jama.2020.21218

Figure 2. The Standard Deviation of Lateral Position During On-Road Driving Tests.

Figure 2.

The x-axes indicate minutes postvaporization. Higher values on the y-axes indicate more weaving vs less weaving for lower values. A, The horizontal black bars indicate the mean standard deviation of lateral position (SDLP) in each condition. B, The dashed lines indicate the mean SDLP increase associated with a blood alcohol level (BAC) of 0.02% and 0.05%. The plus symbol shows the mean change in SDLP in each condition. CBD indicates cannabidiol; THC, Δ9-tetrahydrocannabinol.