Table 2.
Linear regression analysis relating the 10-min averaged PNC and PM2.5 in neighboring businesses and outdoors (sampling location 3) to those in vape shops for pairs A-F.
| Vape shops | PNC | PM2.5 | ||||
|---|---|---|---|---|---|---|
| Slope (95% CI) | p-Value | r | Slope (95% CI) | p-Value | r | |
| Neighboring businesses | ||||||
| A | 0.035 (0.027, 0.043) | <0.001 | 0.59 | 0.010 (0.008, 0.013) | <0.001 | 0.56 |
| B | 0.316 (0.238, 0.394) | <0.001 | 0.62 | −0.002 (−0.006, 0.002) | 0.329 | −0.09 |
| C | 0.136 (0.105, 0.168) | <0.001 | 0.55 | 0.041 (0.0369, 0.045) | <0.001 | 0.83 |
| D | −0.008 (−0.017, 0.001) | 0.075 | −0.22 | −0.003 (−0.006, 0.001) | 0.148 | −0.12 |
| E | 0.111 (0.054, 0.167) | <0.001 | 0.37 | 0.020 (−0.003, 0.042) | 0.084 | 0.15 |
| F | 0.368 (0.119, 0.616) | 0.005 | 0.39 | 0.016 (−0.044, 0.077) | 0.595 | 0.07 |
| Outdoors | ||||||
| A | 0.076 (0.043, 0.109) | <0.001 | 0.37 | 0.006 (0.005, 0.008) | <0.001 | 0.64 |
| B | 0.584 (0.451, 0.716) | <0.001 | 0.66 | 0.013 (−0.009, 0.034) | 0.251 | 0.12 |
| C | 0.054 (−0.010, 0.117) | 0.099 | 0.13 | −0.000 (−0.002, 0.002) | 0.937 | −0.01 |
| D | 0.222 (−0.050, 0.495) | 0.107 | 0.27 | −0.001 (−0.003, 0.001) | 0.428 | −0.07 |
| E | −0.056 (−0.106, −0.006) | 0.030 | −0.30 | −0.005 (−0.011, 0.001) | 0.120 | −0.17 |
| F | 0.088 (−0.033, 0.210) | 0.149 | 0.28 | 0.089 (0.037, 0.141) | 0.001 | 0.43 |