Table 1 Demographic characteristics and socioeconomic status of the study populations
Variables | Case (%) | Control (%) | P-value |
|---|---|---|---|
Sex | Â | Â | Â |
   Male | 1025(74) | 1038(71) | 0.100 |
   Female | 362(26) | 421(29) |  |
Age | Â | Â | Â |
   Mean | 46.92 | 47.34 |  |
   (SD) | 11.34 | 11.64 |  |
   < 30 | 84(6) | 78(5) | 0.564 |
   30-40 | 323(23) | 352(24) |  |
   41-50 | 442(32) | 431(30) |  |
   51-60 | 371(27) | 414(28) |  |
   > 60 | 167(12) | 184(13) |  |
Dialect | Â | Â | Â |
   Hakka | 219(16) | 206(14) | 0.603 |
   Cantonese | 917(66) | 971(67) |  |
   Hokkien | 133(10) | 146(10) |  |
   Others | 116(8) | 132(9) |  |
Education | Â | Â | Â |
   None or primary school | 282(20) | 297(20) | 0.998 |
   Secondary school | 373(27) | 391(27) |  |
   High school | 459(33) | 479(33) |  |
   University or more | 269(20) | 286(20) |  |
Household type | Â | Â | Â |
   Rural | 965(70) | 1018(70) | 0.874 |
   Urban | 412(30) | 429(30) |  |