Table 2.
Product Availability Among Vape Shops Assessed in Summer 2018 (N = 179) and Fall 2021 (N = 119)
| 2018 | 2021 | ||||
|---|---|---|---|---|---|
| N = 179 | N = 119 | ||||
| Variables | N (%) | Kappa | N (%) | Kappa | p |
| Device products * | |||||
| Closed systems (2018) | 116 (64.8) | 0.96 | n/a | n/a | <.001 |
| Disposables (2021) | n/a | n/a | 105 (88.2) | 0.93 | — |
| Cartridge-based (2021) | n/a | n/a | 63 (52.9) | 0.96 | — |
| Open systems (2018) | 179 (100.0) | n/a | n/a | — | — |
| Pod mods (2021) | n/a | n/a | 111 (93.3) | 0.92 | — |
| Box mods (2021) | n/a | n/a | 111 (93.3) | 0.92 | — |
| Herbal/dry chamber vaporizers | 56 (34.4) | 0.97 | 51 (42.9) | 0.90 | .041 |
| Combined wet/dry vaporizers | 43 (26.4) | 0.93 | 47 (39.5) | 0.94 | .004 |
| E-liquid products | |||||
| Sells vape shop’s own brand | 122 (68.2) | 0.99 | 53 (44.5) | 0.86 | <.001 |
| Sells other vendors’ brands | 160 (89.4) | 1.00 | 105 (88.2) | 0.77 | .757 |
| Sells e-liquids with nicotine salt | 145 (81.0) | 0.96 | 81 (68.1) | 0.71 | .011 |
| CBD, THC, and Kratom | |||||
| Sells e-liquids containing CBD | 76 (42.5) | 1.00 | 37 (31.1) | 0.72 | .048 |
| Other CBD products | 35 (23.3) | 0.92 | 85 (71.4) | 0.86 | <.001 |
| Sells e-liquids containing THC | n/a | n/a | 15 (12.6) | 0.63 | — |
| Other THC products | n/a | n/a | 74 (62.2) | 0.88 | — |
| Kratom | n/a | n/a | 48 (40.3) | 0.89 | — |
| Pipes/glassware/papers | 33 (18.4) | 0.94 | 63 (52.9) | 0.82 | <.001 |
*Different assessments of e-cigarette devices in 2018 versus 2021. n/a = not assessed.
§Significance level set at alpha = 0.01. Intra-class correlations (ICCs) among metropolitan statistical areas were < .20, except for: (0.20–0.50) cartridge-based devices, own brand of e-liquids or e-liquids with nicotine salts, CBD products other than e-liquids, and THC products.