Table 1.

Descriptive statistics for central study variables within the total sample of dual-users (N = 326)

	% or M(SD)	Range (%)
Sex (% Male)	49.7%
Age	38.16 (13.09)	18 years (0.6%) – 76 years (0.6%)
Race (% White)	85.3%
Smoking Frequency (past 30 days)	22.32 (9.58)	4 days (5.5%) – 30 days (51.2%)
Vaping Frequency (past 30 days)	22.39 (8.33)	4 days (1.8%) –30 days (42.6%)
Nicotine E-liquid Use	83.4%
PROMIS	2.40 (1.18)	Mean score of 0 (5.2%) – 4 (13.5%)
1. I find myself reaching for a cigarette without thinking about it.	2.47 (1.31)	Never (10.1%) – Almost Always (28.8%)
2. I drop everything to go out and buy cigarettes.	2.25 (1.33)	Never (12.3%) – Almost Always (24.5%)
3. I smoke more before going into a situation where smoking is not allowed.	2.53 (1.29)	Never (9.5%) – Almost Always (30.4%)
4. When I haven’t been able to smoke for a few hours, the craving gets intolerable.	2.36 (1.31)	Never (11.7%) – Almost Always (25.8%)
PROMIS-E	1.86 (1.16)	Mean score of 0 (9.2%) – 4 (4.6%)
1. I find myself reaching for my e-cigarette without thinking about it.	2.11 (1.34)	Never (18.4%) – Almost Always (17.8%)
2. I drop everything to go out and buy e-cigarettes or e-juice.	1.53 (1.35)	Never (29.8%) – Almost Always (12.3%)
3. I vape more before going into a situation where vaping is not allowed.	2.13 (1.30)	Never (16.0%) – Almost Always (17.8%)
4. When I haven’t been able to vape for a few hours, the craving gets intolerable.	1.66 (1.36)	Never (26.1%) – Almost Always (13.8%)