Table 2. Smoking status of subjects by five categories of body mass index.
| [Men] | |||||
|
| |||||
| Body mass index | Never-smokers | Ex-smokers | Current smokers | Total | |
|
| |||||
| <20 cigarettes/day | ≧20 cigarettes/day | ||||
| BMI<20 | 190 (16.7) | 201 (17.6) | 275 (24.1) | 473 (41.5) | 1139 (100) |
| 20≦BMI<22 | 361 (19.9) | 354 (19.5) | 359 (19.8) | 741 (40.8) | 1815 (100) |
| 22≦BMI<24 | 463 (22.6) | 501 (24.4) | 326 (15.9) | 762 (37.1) | 2052 (100) |
| 24≦BMI<26 | 362 (25.5) | 369 (26.0) | 181 (12.8) | 505 (35.6) | 1417 (100) |
| 26≦BMI | 228 (26.0) | 228 (26.0) | 98 (11.2) | 324 (36.9) | 878 (100) |
|
| |||||
| Total | 1604 (22.0) | 1653 (22.6) | 1239 (17.0) | 2805 (38.4) | 7301 (100) |
|
| |||||
| [Women] | |||||
|
| |||||
| Body mass index | Never-smokers | Ex-smokers | Current smokers | Total | |
|
| |||||
| <20 cigarettes/day | ≧20 cigarettes/day | ||||
|
| |||||
| BMI<20 | 1308 (85.0) | 40 ( 2.6) | 135 ( 8.8) | 56 ( 3.6) | 1539 (100) |
| 20≦BMI<22 | 2008 (88.7) | 48 ( 2.1) | 130 ( 5.7) | 77 ( 3.4) | 2263 (100) |
| 22≦BMI<24 | 2030 (88.8) | 62 ( 2.7) | 122 ( 5.3) | 71 ( 3.1) | 2285 (100) |
| 24≦BMI<26 | 1419 (89.0) | 40 ( 2.5) | 80 ( 5.0) | 55 ( 3.5) | 1594 (100) |
| 26≦BMI | 946 (82.7) | 50 ( 4.4) | 74 ( 6.5) | 74 ( 6.5) | 1144 (100) |
|
| |||||
| Total | 7711 (87.4) | 240 ( 2.7) | 541 ( 6.1) | 333 ( 3.8) | 8825 (100) |
% in parentheses