Table 1 Characteristics of the sampled individuals (N = 11252)
Variables | n (%) | |
|---|---|---|
Sex | Â | Â |
   Male | 5829 (51.8) | |
   Female | 5423 (48.2) | |
Age | Â | 38.4 (19.7)* |
Ethnicity | Â | Â |
   Han | 10761 (95.6) | |
   Mongolian | 402 (3.6) | |
   Other | 89 (0.5) | |
Level of Education | Â | |
   None | 2608 (23.2) | |
   Primary school | 3787 (33.7) | |
   Junior high school | 3802 (33.8) | |
   Senior high school and above | 1055 (9.4) | |
Occupation | Â | Â |
   Unemployed | 1299 (11.5) | |
   Farmer | 7168 (63.7) | |
   Non-farmer | 1313 (11.7) | |
   Student | 1472 (13.1) | |
Religion | Â | Â |
   None | 10208 (90.7) | |
   Buddhism | 494 (4.4) | |
   Christianity | 240 (2.1) | |
   Other | 310 (2.8) | |
Marital status | Â | |
   Unmarried | 3275 (29.1) | |
   Married | 7510 (66.7) | |
   Divorced or widowed | 467 (4.2) | |
Insurance status | Â | |
   None | 905 (8.0) | |
   NRCMS only | 9820 (87.3) | |
   Private insurance only | 131 (1.2) | |
   NRCMS + private insurance | 396 (3.5) | |