| Characteristics | Number | Percent (%) |
---|---|---|---|
Sex | Â | Â | Â |
 | Female | 3362 | 49.43 |
 | Male | 3413 | 50.18 |
 | Information missing | 26 | 0.38 |
Age | Â | Â | Â |
 | 14~ | 1339 | 19.69 |
 | 25~ | 1059 | 15.57 |
 | 35~ | 1002 | 14.73 |
 | 45~ | 1094 | 16.09 |
 | 55~ | 911 | 13.40 |
 | 65~ | 878 | 12.91 |
 | 75~ | 505 | 7.43 |
 | Information missing | 13 | 0.19 |
Educationa | Â | Â | Â |
 | Low education | 2266 | 33.32 |
 | Medium education | 2095 | 30.80 |
 | High education | 1791 | 26.33 |
 | Illiterate or other | 503 | 7.40 |
 | Information missing | 146 | 2.15 |
Marital Status | Â | Â | Â |
 | Married | 4303 | 63.27 |
 | Non-married | 1672 | 24.58 |
 | Divorced/separated/widowed | 571 | 8.40 |
 | Information missing | 255 | 3.75 |
Residence | Â | Â | Â |
 | Urban | 4881 | 71.77 |
 | Rural | 1012 | 14.88 |
 | Suburban | 655 | 9.63 |
 | Information missing | 253 | 3.72 |
City | Â | Â | Â |
 | Guangzhou | 1323 | 19.45 |
 | Maoming | 1335 | 19.63 |
 | Shantou | 1269 | 18.66 |
 | Shaoguan | 1297 | 19.07 |
 | Shengzhen | 1577 | 23.19 |
 | Information missing | 0 | 0.00 |
Income(RMB)b | Â | Â | Â |
 | 0~ | 1471 | 21.63 |
 | 500~ | 1288 | 18.94 |
 | 1000~ | 1440 | 21.17 |
 | 2000~ | 1057 | 15.54 |
 | Information missing | 1545 | 22.07 |