Table 4 Perceived health changes
From: Electronic cigarette use behaviors and motivations among smokers and non-smokers
| Â | Former N (%) | Current N (%) | p-value |
|---|---|---|---|
Health changes after starting use of ECs | |||
 Have not paid attention to this | 3 (1) | 8 (13) | <.01 |
 No | 8 (3) | 9 (13) |  |
 Yes | 226 (95) | 47 (73) |  |
Persistent symptoms before starting ECs | |||
 Cough | 63 (27) | 40 (62) | <.01 |
 Wheeze | 48 (20) | 34 (53) | <.01 |
 Chest tightness | 53 (22) | 29 (45) | <.01 |
 Sputum | 82 (35) | 30 (47) | 0.07 |
 Sinus | 104 (44) | 35 (55) | 0.12 |
Symptoms improved after start using ECsa | |||
 Cough | 57 (90) | 24 (60) | <.01 |
 Wheeze | 43 (90) | 22 (65) | <.01 |
 Chest tightness | 46 (87) | 16 (55) | <.01 |
 Sputum | 64 (78) | 16 (55) | 0.01 |
 Sinus | 83 (81) | 24 (69) | 0.17 |