Table 1.
Demographic characteristics of the study population by SNPs.
| Gender
|
Age (years)
|
Exposure (years)
|
||||||
|---|---|---|---|---|---|---|---|---|
| SNP | Genotype | Male [n (%)] | Female [n (%)] | n (%) | Mean ± SD | n | Mean ± SD | Range |
| Msp | 1-1 | 168 (92.8) | 58 (92.1) | 226 (92.6) | 39.5 ± 10.6 | 214 | 15.4 ± 10.2 | 1–41 |
| 1-2/2-2 | 13 (7.2) | 5 (7.9) | 18 (7.4) | 36.4 ± 9.8 | 18 | 10.8 ± 9.1 | 1–27 | |
| Rsa | 1-1 | 40 (22.1) | 16 (26.2) | 56 (23.1) | 39.8 ± 11.0 | 54 | 15.8 ± 11.2 | 1–41 |
| 1-2 | 86 (47.5) | 28 (45.9) | 114 (47.1) | 38.4 ± 10.3 | 107 | 14.3 ± 9.9 | 1–39 | |
| 2-2 | 55 (30.4) | 17 (27.9) | 72 (29.8) | 39.7 ± 10.7 | 69 | 15.0 ± 9.9 | 1–36 | |
| Rsa39488 | 1-1 | 41 (23.0) | 15 (23.8) | 56 (23.2) | 40.0 ± 11.0 | 55 | 16.0 ± 11.3 | 1–41 |
| 1-2 | 81 (45.5) | 32 (50.8) | 113 (46.9) | 39.3 ± 10.2 | 105 | 14.9 ± 10.0 | 1–39 | |
| 2-2 | 56 (31.5) | 16 (25.4) | 72 (29.9) | 39.0 ± 10.7 | 69 | 14.5 ± 9.5 | 1–36 | |
| HpyCH4 | 1-1 | 136 (87.2) | 55 (91.7) | 191 (88.4) | 39.2 ± 10.4 | 184 | 15.5 ± 10.2 | 1–41 |
| 1-2 | 20 (12.8) | 5 (8.3) | 25 (11.6) | 40.9 ± 10.7 | 23 | 13.9 ± 9.3 | 1–30 | |
| HpyIV | 1-1 | 131 (74.9) | 42 (67.7) | 173 (73.0) | 39.8 ± 10.4 | 163 | 15.3 ± 10.2 | 1–41 |
| 1-2/2-2 | 44 (25.1) | 20 (32.3) | 64 (27.0) | 38.1 ± 10.9 | 62 | 14.4 ± 10.3 | 1–39 | |
| Sau3A | 1-1 | 106 (66.7) | 31 (51.7) | 137 (62.6) | 38.3* ± 10.7 | 131 | 14.9 ± 10.1 | 1–39 |
| 1-2/2-2 | 53 (33.3) | 29 (48.3) | 82 (37.4) | 41.4* ± 9.7 | 77 | 16.05 ± 10.0 | 1–41 | |
*p < 0.05.