Table 2 Baseline characteristics of the participants.
From: Genetic scores of smoking behaviour in a Chinese population
| Ā | Total | Smokers | Never smokers |
|---|---|---|---|
(n = 3,553) | (n = 1,067) | (n = 2,486) | |
Age (years) | |||
ā<70 | 1,627 (45.8) | 469 (44.0) | 1,158 (46.6) |
ā70ā79 | 1,641 (46.2) | 504 (47.2) | 1,137 (45.7) |
āā„80 | 285 (8.0) | 94 (8.8) | 191 (7.7) |
Gender | |||
āMale | 1,477 (41.6) | 832 (78.0) | 645 (25.9) |
āFemale | 2,076 (58.4) | 235 (22.0) | 1841 (74.1) |
Ethnic group | |||
āHan | 3,479 (97.9) | 1,049 (98.3) | 2,430 (97.8) |
āMinority | 74 (2.1) | 18 (1.7) | 56 (2.2) |
Education level (years) | |||
ā0ā6 | 1,225 (34.5) | 405 (38.0) | 820 (33.0) |
ā7ā12 | 1,333 (37.5) | 365 (34.2) | 968 (38.9) |
ā13+ | 995 (28.0) | 297 (27.8) | 698 (28.1) |
Occupation | |||
āWhite collar | 1,409 (39.7) | 409 (38.3) | 1,000 (40.2) |
āLight physical labour | 1,402 (39.5) | 420 (39.4) | 982 (39.5) |
āHard physical labour | 742 (20.9) | 238 (22.3) | 504 (20.3) |
BMI | |||
ā<24.00 | 1,280 (36.0) | 370 (34.7) | 910 (36.6) |
ā24.00ā27.99 | 1,585 (44.6) | 483 (45.3) | 1,102 (44.3) |
āā„28.00 | 688 (19.4) | 214 (20.1) | 474 (19.1) |
Sports activity time | |||
ā<1āhour/week | 710 (20.0) | 222 (20.8) | 488 (19.6) |
ā1ā4āhours/week | 2151 (60.5) | 628 (58.9) | 1,523 (61.3) |
ā>4āhours/week | 692 (19.5) | 217 (20.3) | 475 (19.1) |
