Table 1 Population characteristics of study participants by tobacco use status (N = 4154)
Parameter | Never user total | Current user total | Former user total |
|---|---|---|---|
Total | 2697.9 (64.9%) | 779.4 (18.8%) | 674.5 (16.2%) |
Gender | |||
 Male | 947.2 (35.1%) | 565.7 (72.6%) | 526.5 (78.1%) |
 Female | 1750.6 (64.9%) | 213.7 (27.4%) | 148.1 (21.9%) |
Age (years) | |||
 Mean (SE) | 51.4 (0.55) | 48.0 (0.64) | 57.8 (0.65) |
 Median | 49.2 | 46.1 | 58.8 |
 Min | 20 | 20 | 20 |
 Max | 98 | 87 | 88 |
Highest level of education–n (%) | |||
 Junior high school | 180.4 (6.7%) | 69.4 (8.9%) | 44.1 (6.5%) |
 High school | 901.1 (33.4%) | 346.7 (44.5%) | 254.6 (37.7%) |
 Professional training college | 360.1 (13.3%) | 105.0 (13.5%) | 83.1 (12.3%) |
 Junior college | 316.7 (11.7%) | 27.1 (3.5%) | 23.0 (3.4%) |
 College, university or graduate course | 858.5 (31.8%) | 210.8 (27.0%) | 258.4 (38.3%) |
 Prefer not to answer | 78.5 (2.9%) | 20.3 (2.6%) | 11.3 (1.7%) |
 Missing | 2.5 (0.1%) | 0.0 (0.0%) | 0.0 (0.0%) |
Employment status–n (%) | |||
 Agriculture, forestry or fisheries | 5.7 (0.2%) | 0.9 (0.1%) | 1.4 (0.2%) |
 Self-employed, family business, professional | 255.2 (9.5%) | 121.1 (15.5%) | 118.3 (17.5%) |
 Regular employee | 727.9 (27.0%) | 362.9 (46.6%) | 232.2 (34.4%) |
 Non-regular employee (part-timer) | 520.3 (19.3%) | 127.5 (16.4%) | 87.2 (12.9%) |
 Unemployed | 174.1 (6.5%) | 31.3 (4.0%) | 41.2 (6.1%) |
 Student | 96.6 (3.6%) | 8.7 (1.1%) | 1.7 (0.3%) |
 Full-time homemaker | 591.7 (21.9%) | 52.6 (6.8%) | 49.6 (7.4%) |
 Pensioner | 259.4 (9.6%) | 53.3 (6.8%) | 131.8 (19.5%) |
 Prefer not to answer | 65.3 (2.4%) | 21.0 (2.7%) | 11.1 (1.7%) |
 Missing | 1.7 (0.1%) | 0.0 (0.0%) | 0.0 (0.0%) |
Marital status–n (%) | |||
 Never married | 597.5 (22.1%) | 164.1 (21.0%) | 59.4 (8.8%) |
 Married | 1838.1 (68.1%) | 529.9 (68.0%) | 553.2 (82.0%) |
 Cohabiting | 4.5 (0.2%) | 6.1 (0.8%) | 1.0 (0.1%) |
 Widowed | 173.7 (6.4%) | 20.8 (2.7%) | 25.6 (3.8%) |
 Divorced | 47.0 (1.7%) | 43.7 (5.6%) | 25.5 (3.8%) |
 Prefer not to answer | 37.1 (1.4%) | 14.8 (1.9%) | 9.8 (1.5%) |
 Missing | 0.0 (0.0%) | 0.0 (0.0%) | 0.0 (0.0%) |
Annual household income–n (%) | |||
 < 3 million yen | 406.0 (15.1%) | 112.4 (14.4%) | 111.4 (16.5%) |
 3 million to < 5 million yen | 533.5 (19.8%) | 202.4 (26.0%) | 194.0 (28.8%) |
 5 million to < 10 million yen | 736.7 (27.3%) | 250.5 (32.1%) | 196.7 (29.2%) |
 ≥ 10 million yen | 192.3 (7.1%) | 63.9 (8.2%) | 58.7 (8.7%) |
 No income | 38.9 (1.4%) | 4.1 (0.5%) | 3.9 (0.6%) |
 I do not know | 319.5 (11.8%) | 45.3 (5.8%) | 18.0 (2.7%) |
 Prefer not to answer | 469.2 (17.4%) | 100.8 (12.9%) | 90.6 (13.4%) |
 Missing | 1.7 (0.1%) | 0.0 (0.0%) | 1.3 (0.2%) |