Table 2.
Characteristics of the participants (n, %).
| Items | n | % |
|---|---|---|
| BMI (kg/m2)a | ||
| Underweight: <18.5 | 7 | 0.4 |
| Normal: 18.5–24.9 | 638 | 36.2 |
| Overweight: 25–29.9 | 620 | 35.1 |
| Obese: ≥30 | 499 | 28.3 |
| Gender | ||
| Male | 730 | 41.4 |
| Female | 1,034 | 58.6 |
| Age | ||
| 65–69 | 983 | 55.7 |
| 70–74 | 483 | 27.4 |
| 75–79 | 298 | 16.9 |
| Marital status | ||
| Unmarried | 3 | 0.2 |
| Married | 1,482 | 84.0 |
| Widowed | 260 | 14.7 |
| Divorced or separated | 19 | 1.1 |
| Education level | ||
| ≥Bachelor's degree | 190 | 10.8 |
| Middle schoolb | 923 | 52.3 |
| ≤ Primary school | 651 | 36.9 |
| Income level (RMB)c | ||
| ≤ 2,000 | 409 | 23.2 |
| 2,000–3,500 | 652 | 37.0 |
| 3,500–5,000 | 376 | 21.3 |
| 5,000–10,000 | 223 | 12.6 |
| ≥10,000 | 24 | 1.4 |
| Missing | 80 | 4.5 |
| Neighborhood socioeconomic level | ||
| Urban | 899 | 51.0 |
| Suburban | 865 | 49.0 |
| Frequency of exercise | ||
| Never | 198 | 11.2 |
| 1–2/week | 55 | 3.1 |
| 3–4/week | 83 | 4.7 |
| 5–6/week | 35 | 2.0 |
| Everyday | 1,387 | 78.6 |
| Missing | 6 | 0.3 |
| Smokingd | ||
| No | 1,464 | 83.0 |
| Yes | 300 | 17.0 |
| Drinking | ||
| ≥Once a week | 436 | 24.7 |
| < Once a week | 1,325 | 75.1 |
| Missing | 3 | 0.2 |
a
Body mass index: a measurement of someone's weight in relation to their height
b
Including high school, junior high school, technical secondary school, professional technical school, etc.
c
Monthly household per capita income in renminbi (RMB): ≤ 2,000 (low level), 2,000–3,500 (low to medium level), 3,500–5,000 (medium level), 5,000–10,000 (medium to high level), ≥10,000 (high level).
d
No: never smoked or has quit smoking; Yes: still smoking or has failed to quit smoking.