Table 1 Demographics and key variables in study population
Demographics | Male (n,%) | Female (n,%) | Overall (n, %) |
|---|---|---|---|
Age | |||
16–29 | 2641 (41.2) | 3587 (46.1) | 6228 (43.9) |
30–39 | 2704 (42.2) | 3228 (41.5) | 5932 (41.8) |
40–49 | 876 (13.7) | 918 (11.8) | 1794 (12.6) |
50 and above | 187 (2.9) | 54 (0.7) | 241 (1.7) |
Mean age (SD) | 31.72 ± 7.32 | 31.49 ± 7.23 | 31.60 ± 7.27 |
Marriage | |||
Single | 2409 (37.6) | 3125 (40.1) | 5534 (39.0) |
Married | 3939 (61.5) | 4552 (58.5) | 8491 (59.8) |
Divorced or widowed | 60 (0.9) | 110 (1.4) | 170 (1.2) |
Ethnicity | |||
Han | 6157 (96.1) | 7437 (95.5) | 13,594 (95.8) |
Others | 251 (3.9) | 350 (4.5) | 601 (4.2) |
Education attainment | |||
Middle school or lower | 233 (3.6) | 243 (3.1) | 476 (3.4) |
High school | 1005 (15.7) | 1075 (13.8) | 2080 (14.7) |
College | 4572 (71.3) | 5802 (74.5) | 10,374 (73.1) |
Master and above | 598 (9.3) | 667 (8.6) | 1265 (8.9) |
2017-year income | |||
100 K or below | 3434 (53.6) | 5087 (65.3) | 8521 (60.0) |
100 K–150 K | 1237 (19.3) | 1383 (17.8) | 2620 (18.5) |
150 K–200 K | 632 (9.9) | 553 (7.1) | 1185 (8.3) |
200 K–300 K | 592 (9.2) | 421 (5.4) | 1013 (7.1) |
300 K or above | 513 (8.0) | 343 (4.4) | 856 (6.0) |
Secondhand smoke exposure | |||
Never | 2362 (36.9) | 4067 (52.2) | 6429 (45.3) |
1 to 3 days per week | 2059 (32.1) | 2364 (30.4) | 4423 (31.2) |
4 to 6 days per week | 539 (8.4) | 442 (5.7) | 981 (6.9) |
Every day | 1448 (22.6) | 914 (11.7) | 2362 (16.6) |
BMI | |||
< 18.5 (underweight) | 336 (5.2) | 1284 (16.5) | 1620 (11.4) |
18.5–24.9 (normal weight) | 4138 (64.6) | 5084 (65.3) | 9222 (65.0) |
≥ 25.0 (overweight and obesity) | 1934 (30.2) | 1419 (18.2) | 3353 (23.6) |
Workplace SF policy | |||
Yes | 4514 (70.4) | 5664 (72.7) | 10,178 (71.7) |
No | 1894 (29.6) | 2123 (27.3) | 4017 (28.3) |
Smoking | |||
Yes | 2593 (40.5) | 362 (4.6) | 2955 (20.8) |
No | 3815 (59.5) | 7425 (95.4) | 11,240 (79.2) |
No. of cigarettes smoked per day | |||
1–9 | 467 (28.1) | 82 (63.1) | 549 (30.7) |
10–19 | 799 (48.1) | 39 (30.0) | 838 (46.8) |
20 and above | 395 (23.8) | 9 (6.9) | 404 (22.6) |
Mean age (SD) | 12.66 ± 6.81 | 8.25 ± 6.58 | 12.34 ± 6.88 |
Smoking quitting intention | |||
Yes | 1114 (67.1) | 87 (66.9) | 1201 (67.1) |
No | 547 (32.9) | 43 (33.1) | 590 (32.9) |
Alcohol drinking | |||
Yes | 4499 (70.2) | 2846 (36.5) | 7345 (51.7) |
No | 1909 (29.8) | 4941 (63.5) | 6850 (48.3) |
Job position | |||
Not administrative | 3906 (61.0) | 5552 (71.3) | 9458 (66.6) |
Administrative | 2502 (39.0) | 2235 (28.7) | 4737 (33.4) |
Night-shift duty | |||
Yes | 1628 (25.4) | 1323 (17.0) | 2951 (20.8) |
No | 4780 (74.6) | 6464 (83.0) | 11,244 (79.2) |
Chronic disease | |||
Yes | 1924 (30.0) | 1965 (25.2) | 3889 (27.4) |
No | 4484 (70.0) | 5822 (74.8) | 10,306 (72.6) |
Total | 6408 (45.1) | 7787 (54.9) | 14,195 (100) |