Table 1. Distribution of CHRNA3 rs1051730 among lung cancer cases and controls included in this meta-analysis.
| First author, year (Refs.) | Ethnicity (country of origin) | Total sample (case/control) | Lung cancer |
Controls |
|||||
|---|---|---|---|---|---|---|---|---|---|
| CC | CT | TT | CC | CT | TT | ||||
| Ren, 2013 (16) | China | 210/200 | 188 | 22 | 0 | 190 | 10 | 0 | |
| Yang, 2012 (17) | China | 1,056/1,061 | 1,007 | 49 | 0 | 1,025 | 36 | 0 | |
| Kohno, 2011 (14) | Japanese | 374/324 | 349 | 25 | 0 | 314 | 10 | 0 | |
| Shiraishi, 2009 (15) | Japanese | 1,250/936 | 1,170 | 77 | 3 | 910 | 25 | 1 | |
CC, indicates wild-type; CT, indicates heterozygote; TT, indicates variant homozygote.