Table 1. Group Means for Graphs in Figures 2, 3, 4, 5 Through 6
Condition% Vasodilation (FMD or NTG)Baseline Diameter (mm)
Pre‐Exp.10 Minutes Post40 Minutes PostPre‐Exp.10 Minutes Post40 Minutes Post
30‐minutes exposure, Figure 2B and 2C
Marijuana (low level)9.1±1.34.6±1.0a5.3±0.8a0.42±0.0030.46±0.020.47±0.02
Marijuana7.5±0.92.4±0.5a2.2±0.8a0.41±0.020.43±0.030.42±0.02
THC‐free9.9±1.44.3±0.6a5.5±1.3a0.40±0.010.44±0.020.42±0.02
Air11.0±0.611.4±0.711.7±0.90.42±0.020.44±0.020.45±0.02
30‐minutes exposure, Figure 3B
THC‐free high (paperless)13.2±3.32.5±1.0a0.37±0.0090.39±0.014
1‐minute exposure, Figure 4A
Air12.9±1.312.3±1.10.38±0.0150.39±0.017
Marijuana13.7±1.38.1±1.6a0.38±0.0150.41±0.017a
THC‐free15.1±1.47.7±0.9a0.38±0.0170.41±0.017a
1‐minute exposure, Figure 4B
Marijuana high, delayed15.6±1.76.4±1.3a0.36±0.0110.38±0.020
ConditionPre‐Exp.30 Minutes60 Minutes90 MinutesPre‐Exp.30 Minutes60 Minutes90 Minutes
1‐minute exposure, Figure 4C
Marijuana15.9±1.78.3±1.7a8.7±2.0a10.7±1.3a0.41±0.020.43±0.020.42±0.020.42±0.02
ConditionPre‐Exp. FMDPost‐Exp. FMDNTGPost‐NTG FMD
1‐minute exposure, Figure 5
Marijuana28.1±2.59.8±3.0a23.3±4.28.9±2.8a
ConditionPre‐Exp.10 Minutes Post30 Minutes Post
1‐minute exposure, Figure 6
Tobacco11.7±1.64.0±1.4a8.5±2.5
Marijuana12.5±1.34.9±0.9a3.4±1.3a
Air11.2±1.710.8±1.511.1±1.6
  • Errors are SEM. FMD indicates flow‐mediated vasodilation; NTG, nitroglycerin; THC, tetrahydrocannabinol.

  • a P<0.05 vs pre‐exp.