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©2009 The WJG Press and Baishideng.
World J Gastroenterol. May 28, 2009; 15(20): 2526-2530
Published online May 28, 2009. doi: 10.3748/wjg.15.2526
Published online May 28, 2009. doi: 10.3748/wjg.15.2526
Table 1 Distributions of selected variables in colorectal cancer patients and cancer-free controls n (%)
| Variables | Test group | Validation group | Merged group | P1 | |||
| Case | Control | Case | Control | Case | Control | ||
| Age (yr) | 0.992 | ||||||
| ≤ 49 | 120 (23.4) | 122 (23.3) | 36 (18.7) | 36 (18.0) | 156 (22.1) | 158 (21.9) | |
| 50-60 | 146 (28.5) | 149 (28.5) | 39 (20.2) | 42 (21.0) | 185 (26.2) | 191 (26.4) | |
| > 60 | 247 (48.2) | 252 (48.2) | 118 (61.1) | 122 (61.0) | 365 (51.7) | 374 (51.7) | |
| Sex | 0.937 | ||||||
| Male | 300 (58.5) | 300 (57.4) | 137 (71.0) | 149 (74.5) | 437 (61.9) | 449 (62.1) | |
| Female | 213 (41.5) | 223 (42.6) | 56 (29.0) | 51 (25.5) | 269 (38.1) | 274 (37.9) | |
| Smoking status | < 0.0001 | ||||||
| Current | 228 (44.4) | 142 (27.2) | 88 (45.6) | 77 (38.5) | 316 (44.8) | 219 (30.3) | |
| Former | 59 (11.5) | 79 (15.1) | 20 (10.4) | 24 (12.0) | 79 (11.2) | 103 (14.3) | |
| Non | 226 (44.1) | 302 (57.7) | 85 (44.0) | 99 (49.5) | 311 (44.1) | 401 (55.5) | |
| Drinking status | < 0.0001 | ||||||
| Current | 275 (53.6) | 83 (15.9) | 98 (50. 8) | 57 (28.5) | 373 (52.8) | 140 (19.4) | |
| Former | 14 (2.7) | 25 (4.8) | 12 (6.2) | 10 (5.0) | 26 (3.7) | 35 (4.8) | |
| Non | 224 (43.7) | 415 (79.4) | 83 (43.0) | 133 (66.5) | 307 (43.5) | 548 (75.8) | |
| Family history of cancer | 0.018 | ||||||
| Yes | 71 (13.8) | 57 (10.9) | 20 (10.4) | 8 (4.0) | 91 (12.9) | 65 (9.0) | |
| No | 442 (86.2) | 466 (89.1) | 173 (89.6) | 192 (96.0) | 615 (87.1) | 658 (91.0) | |
| BMI (kg/m2) | 0.002 | ||||||
| ≤ 23.9 | 297 (57.9) | 346 (66.2) | 92 (47. 7) | 118 (59.0) | 389 (55.1) | 464 (64.2) | |
| 24.0-27.9 | 169 (32.9) | 139 (26.6) | 77 (39.9) | 66 (33.0) | 246 (34.8) | 205 (28.4) | |
| ≥ 28.0 | 47 (9.2) | 38 (7.3) | 24 (12.4) | 16 (8.0) | 71 (10.1) | 54 (7.5) | |
| Menstrual history | 0.881 | ||||||
| Premenopause | 43 (20.2) | 41 (18.4) | 10 (17.9) | 11 (21.6) | 53 (19.7) | 52 (19.0) | |
| Menopause | 170 (79.8) | 182 (81.6) | 46 (82.1) | 40 (78.4) | 216 (80.3) | 222 (81.0) | |
- Citation: Wei YS, Lu JC, Wang L, Lan P, Zhao HJ, Pan ZZ, Huang J, Wang JP. Risk factors for sporadic colorectal cancer in southern Chinese. World J Gastroenterol 2009; 15(20): 2526-2530
- URL: https://www.wjgnet.com/1007-9327/full/v15/i20/2526.htm
- DOI: https://dx.doi.org/10.3748/wjg.15.2526