Table 1.
Demographic characteristics of participants
| Never cigarettes smokers | Past cigarettes smokers | Current cigarettes smokers | Total | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HTPs (-) | HTPs ( +) | HTPs (-) | HTPs ( +) | HTPs (-) | HTPs ( +) | |||||||||
| (n = 10,809) | (n = 91) | (n = 4,140) | (n = 763) | (n = 2,546) | (n = 959) | (n = 19,308) | ||||||||
| Sex | ||||||||||||||
| Women | 7,328 | (67.8) | 31 | (34.1) | 1,104 | (26.7) | 192 | (25.2) | 814 | (32.0) | 210 | (21.9) | 9,679 | (50.1) |
| Men | 3,481 | (32.2) | 60 | (65.9) | 3,036 | (73.3) | 571 | (74.8) | 1,732 | (68.0) | 749 | (78.1) | 9,629 | (49.9) |
| Age (years) | ||||||||||||||
| 40–49 | 3,028 | (28.0) | 37 | (40.7) | 829 | (20.0) | 313 | (41.0) | 727 | (28.6) | 390 | (40.7) | 5,324 | (27.6) |
| 50–59 | 2,440 | (22.6) | 28 | (30.8) | 892 | (21.5) | 244 | (32.0) | 713 | (28.0) | 300 | (31.3) | 4,617 | (23.9) |
| 60–69 | 2,552 | (23.6) | 21 | (23.1) | 1,180 | (28.5) | 157 | (20.6) | 634 | (24.9) | 205 | (21.4) | 4,749 | (24.6) |
| 70–81 | 2,789 | (25.8) | 5 | (5.5) | 1,239 | (29.9) | 49 | (6.4) | 472 | (18.5) | 64 | (6.7) | 4,618 | (23.9) |
| Educational attainment | ||||||||||||||
| Junior high or high school | 3,409 | (31.5) | 23 | (25.3) | 1,273 | (30.7) | 258 | (33.8) | 864 | (33.9) | 297 | (31.0) | 6,124 | (31.7) |
| Vocational school or college | 2,938 | (27.2) | 23 | (25.3) | 761 | (18.4) | 156 | (20.4) | 519 | (20.4) | 159 | (16.6) | 4,556 | (23.6) |
| University or graduate school | 4,462 | (41.3) | 45 | (49.5) | 2,106 | (50.9) | 349 | (45.7) | 1,163 | (45.7) | 503 | (52.5) | 8,628 | (44.7) |
| Equivalent household income (JPY) | ||||||||||||||
| < 1,500,000 | 1,777 | (16.4) | 6 | (6.6) | 752 | (18.2) | 76 | (10.0) | 377 | (14.8) | 115 | (12.0) | 3,103 | (16.1) |
| 1,500,000–2,999,999 | 2,717 | (25.1) | 28 | (30.8) | 1,137 | (27.5) | 163 | (21.4) | 626 | (24.6) | 184 | (19.2) | 4,855 | (25.1) |
| 3,000,000–4,499,999 | 1,769 | (16.4) | 19 | (20.9) | 741 | (17.9) | 175 | (22.9) | 495 | (19.4) | 233 | (24.3) | 3,432 | (17.8) |
| ≥ 4,500,000 | 2,023 | (18.7) | 25 | (27.5) | 784 | (18.9) | 212 | (27.8) | 545 | (21.4) | 304 | (31.7) | 3,893 | (20.2) |
| Unknown | 2,523 | (23.3) | 13 | (14.3) | 726 | (17.5) | 137 | (18.0) | 503 | (19.8) | 123 | (12.8) | 4,025 | (20.8) |
| Alcohol intake | ||||||||||||||
| Never | 5,737 | (53.1) | 39 | (42.9) | 1,304 | (31.5) | 270 | (35.4) | 950 | (37.3) | 315 | (32.8) | 8,615 | (44.6) |
| Occasionally | 3,430 | (31.7) | 31 | (34.1) | 1,205 | (29.1) | 219 | (28.7) | 662 | (26.0) | 299 | (31.2) | 5,846 | (30.3) |
| Regular | 1,642 | (15.2) | 21 | (23.1) | 1,631 | (39.4) | 274 | (35.9) | 934 | (36.7) | 345 | (36.0) | 4,847 | (25.1) |
| Type of HTP | ||||||||||||||
| Ploom TECH | - | 31 | (34.1) | - | 236 | (30.9) | - | 542 | (56.5) | 809 | (4.2) | |||
| IQOS | - | 42 | (46.2) | - | 391 | (51.2) | - | 486 | (50.7) | 919 | (4.8) | |||
| glo | - | 26 | (28.6) | - | 255 | (33.4) | - | 431 | (44.9) | 712 | (3.7) | |||
| lil HYBRID | - | 4 | (4.4) | - | 4 | (0.5) | - | 102 | (10.6) | 110 | (0.6) | |||
| COPD | 64 | (0.6) | 2 | (2.2) | 95 | (2.3) | 8 | (1.0) | 44 | (1.7) | 45 | (4.7) | 258 | (1.3) |
| Asthma | 1,193 | (11.0) | 7 | (7.7) | 547 | (13.2) | 83 | (10.9) | 336 | (13.2) | 161 | (16.8) | 2,327 | (12.1) |
| ACO | 18 | (0.2) | 0 | (0.0) | 43 | (1.0) | 2 | (0.3) | 16 | (0.6) | 34 | (3.5) | 113 | (0.6) |
ACO Asthma and COPD Overlap, COPD Chronic obstructive pulmonary disease, HTPs Heated tobacco products, JPY Japanese Yen