Figure 1.

Prevalence of substance use overestimation by academic discipline and 95% confidence intervals. p ≤ 0.001 for the chi-squared test of independence between academic discipline and substance use overestimation for all four behaviours.

Riou Franca et al. BMC Public Health 2010 10:169   doi:10.1186/1471-2458-10-169
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