Table 2.

Self-Rated Knowledge Regarding e-Cigarette Effects by Vaping Status

When Was the Last Time You Smoked an Electronic Cigarette, Even One or Two Puffs?Total
Recent Users, N (%)Nonrecent Users, N (%)Never Users, N (%)
57 (10.0)165 (29.0)346 (60.9)568 (100)
I am knowledgeable about the effect of electronic cigarettes on users' health (missing = 40)
    Strongly or somewhat agree15 (29.4)52 (32.1)77 (24.4)144 (27.3)
    Neither agree nor disagree14 (27.5)40 (24.7)75 (23.8.)129 (24.4)
    Somewhat or strongly disagree22 (43.1)70 (43.2)163 (51.7)255 (48.3)
I am knowledgeable about secondhand smoke from electronic cigarettes (missing = 40)
    Strongly or somewhat agree18 (35.3)61 (37.4)83 (26.4)162 (30.7)
    Neither agree nor disagree14 (27.4)35 (21.5)70 (22.3)119 (22.5)
    Somewhat or strongly disagree19 (37.3)67 (41.1)161 (51.3)247 (46.8)
I am knowledgeable about the effects of electronic cigarettes on quitting cigarettes (missing = 56)
    Strongly or somewhat agree16 (31.4)48 (30.2)74 (24.5)138 (27.0)
    Neither agree nor disagree8 (15.7)40 (25.2)82 (27.2)130 (25.3)
    Somewhat or strongly disagree27 (52.9)71 (44.6)146 (48.3)244 (47.7)