Table 1.
Baseline characteristics of included participants (n = 30,835) by egg consumption.
| Frequency of Egg Consumption, Times/Week | |||||
|---|---|---|---|---|---|
| Characteristics | Total | 0 | 1–2 | 3–6 | ≥7 |
| Population | |||||
| Persons, n | 30,835 | 7269 | 8561 | 9445 | 5560 |
| All-cause death, n | 1651 | 511 | 465 | 419 | 256 |
| Demographic characteristics | |||||
| Age, years | 45.6 ± 16.3 | 47 ± 16.5 | 45.6 ± 15.8 | 44.5 ± 16.3 | 45.8 ± 16.6 |
| Male sex, % | 48.5 | 46.3 | 49.1 | 49.4 | 49.3 |
| BMI, kg/m2 | 21.5 ± 5.2 | 20.7 ± 5.9 | 21.4 ± 5.4 | 22 ± 4.5 | 22.2 ± 4.6 |
| Han ethnicity, % | 91.7 | 85.6 | 91.0 | 94.1 | 96.4 |
| Urban, % | 43.7 | 30.8 | 40.7 | 49.8 | 54.9 |
| Annual household income, % | |||||
| Low | 28.7 | 42.1 | 30.2 | 22.6 | 19.1 |
| Medium | 43.0 | 40.7 | 44.6 | 43.6 | 42.2 |
| High | 28.4 | 17.1 | 25.2 | 33.8 | 38.7 |
| Behavioral factors | |||||
| Meat intake, % | |||||
| 0 times/week | 18.2 | 33.7 | 15.2 | 12.4 | 12.3 |
| 1 to 3 times/week | 45.6 | 39.3 | 52.6 | 45.3 | 43.2 |
| ≥4 times/week | 36.2 | 27.0 | 32.2 | 42.3 | 44.5 |
| Vegetable intake, % | |||||
| 0 times/week | 4.9 | 13.5 | 2.5 | 2.0 | 2.2 |
| 1 to 7 times/week | 46.5 | 44.3 | 49.0 | 47.8 | 43.4 |
| ≥8 times/week | 48.6 | 42.2 | 48.5 | 50.1 | 54.4 |
| Fish intake, % | |||||
| 0 times/week | 48.5 | 72.7 | 45.5 | 39.8 | 36.3 |
| 1 times/week | 24.7 | 12.3 | 30.5 | 26.7 | 28.7 |
| ≥2 times/week | 26.8 | 15.0 | 24.0 | 33.4 | 35.0 |
| Dairy products, % | |||||
| 0 times/week | 71.6 | 89.7 | 76.1 | 64.3 | 53.4 |
| 1 to 3 times/week | 14.6 | 4.9 | 16.0 | 19.1 | 17.5 |
| ≥4 times/week | 13.8 | 5.4 | 7.8 | 16.5 | 29.1 |
| Smoking status, % | |||||
| Current | 30.4 | 30.7 | 32.1 | 29.5 | 29.2 |
| Former | 6.3 | 5.0 | 6.8 | 6.1 | 7.5 |
| Never | 63.3 | 64.4 | 61.1 | 64.5 | 63.4 |
| Alcohol consumption, % | |||||
| Current | 16.1 | 14.6 | 15.6 | 16.3 | 18.3 |
| Former | 4.6 | 4.6 | 4.6 | 4.1 | 5.7 |
| Never | 79.3 | 80.8 | 79.8 | 79.7 | 76.0 |
| Physical activity, % | |||||
| 0 min/week | 73.3 | 80.6 | 76.8 | 70.0 | 63.7 |
| 1 to < 60 min/week | 23.2 | 17.3 | 20.3 | 25.8 | 30.9 |
| ≥60 min/week | 3.5 | 2.1 | 2.9 | 4.2 | 5.4 |
| Health status | |||||
| Chronic diseases, % | 14.7 | 16.3 | 15.6 | 13.0 | 14.4 |
| Cardiovascular disease | 3 | 2.9 | 2.9 | 3.0 | 3.3 |
| Respiratory diseases | 1.6 | 1.7 | 1.8 | 1.5 | 1.7 |
| Diabetes mellitus | 0.7 | 0.6 | 0.6 | 0.7 | 0.8 |
| Cancer | 0.2 | 0.2 | 0.3 | 0.2 | 0.1 |
Data are presented using mean ± SD for continuous variables and percentages for categorical variables. BMI = body mass index.