Table 1. Characteristics of the study population.
| Weighted N(%)a | Women % | Men % | p-value | |
| Age | <.0001 | |||
| 20–44 | 19,131,622(52.8) | 50.7 | 54.9 | |
| 45–64 | 12,177,541(33.6) | 33.3 | 33.9 | |
| 65+ | 4,931,074(13.6) | 16.0 | 11.2 | |
| Marital status | <.0001 | |||
| Married | 25,287,699(70.1) | 68.2 | 72.0 | |
| Separated/Divorced/Widowed | 4,002,312(11.1) | 17.3 | 4.8 | |
| Never married | 6,801,593(18.8) | 14.5 | 23.2 | |
| Education | <.0001 | |||
| College, University | 10,691,450(29.5) | 25.3 | 33.8 | |
| High school | 14,402,050(39.8) | 37.7 | 41.9 | |
| Middle school | 3,835,570(10.6) | 10.5 | 10.7 | |
| No or elementary school | 7,273,591(20.1) | 26.5 | 13.6 | |
| Occupation | <.0001 | |||
| Office worker | 2,940,620(9.4) | 7.1 | 12.1 | |
| Manual worker | 13,957,802(44.8) | 32.1 | 59.0 | |
| Unemployed | 14,253,983(45.8) | 60.8 | 29.0 | |
| Income level | <.0001 | |||
| 1st quartile | 10,669,193(30.2) | 29.2 | 31.3 | |
| 2nd quartile | 10,257,925(29.1) | 28.4 | 29.8 | |
| 3rd quartile | 8,763,902(24.8) | 25.4 | 24.3 | |
| 4th quartile | 5,603,085(15.9) | 17.1 | 14.7 | |
| Number of lifestyle risk behaviors | <.0001 | |||
| 0 | 1,646,405(4.5) | 5.4 | 3.6 | |
| 1 | 8,283,253(22.9) | 28.6 | 17.0 | |
| 2 | 12,594,732(34.8) | 38.2 | 31.2 | |
| 3 | 8,740,052(24.1) | 21.3 | 26.9 | |
| 4 | 3,744,086(10.3) | 5.4 | 15.4 | |
| 5 | 1,082,057(3.0) | 0.9 | 5.1 | |
| 6 | 149,652(0.4) | 0.2 | 0.6 | |
| 7 | 0(0.0) | 0 | 0 | |
| Chronic diseaseb | <.0001 | |||
| No | 16,714,065(46.1) | 50.4 | 41.8 | |
| Yes | 19,526,172(53.9) | 49.6 | 58.2 |
a
Proportions were calculated by a survey frequency procedure using sample weights from the survey.
b
Chronic disease includes cancer, hypertension, coronary artery disease, cerebrovascular attack, chronic obstructive pulmonary disease, diabetes, dyslipidemia, gastric ulcer, liver disease, back pain, osteoporosis, and depressive disorder.