Association between the distance (metres) from educational centres to the nearest IQOS/JUUL POS and the surrounding neighbourhood socioeconomic status
| IQOS | n | Mean (95% CI) | Median (IQR) | Post hoc* | Effect size (VDA) | |
| Socioeconomic status | Low | 1467 | 1147 (1024 to 1270) | 428 (213–902) | Low and middle** | 0.570 |
| Middle | 2502 | 870 (780 to 959) | 325 (192–580) | Middle and high** | 0.422 | |
| High | 493 | 727 (639 to 816) | 403 (251–716) | Low and high p=0.85 | 0.504 | |
| JUUL | n | Mean (95% CI) | Median (IQR) | Post hoc* | Effect size (VDA) | |
| Socioeconomic status | Low | 1467 | 2020 (1863 to 2177) | 1044 (358–2588) | Low and middle** | 0.622 |
| Middle | 2502 | 1325 (1235 to 1468) | 483 (274–990) | Middle and high p=0.75 | 0.491 | |
| High | 493 | 1084 (855 to 1314) | 525 (311–953) | Low and high** | 0.628 |
*P<0.05, **p<0.0001.
*Dunn’s multiple comparison test was performed.
POS, points of sale; VDA, Vargha and Delaney’s A.