Table 1.
Characteristics of study participants
| Factor | Total (N=331) | With dietary data (N=115) | Without dietary data (N=216) | P-value |
|---|---|---|---|---|
| Age (mean ± sd, years) | 61.9 ± 11.0 | 60.8 ± 11.8 | 62.4 ± 10.5 | 0.21 |
| ≤50 | 49 (14.8) | 23 (20.0) | 26 (12.0) | 0.23 |
| 50-≤60 | 94 (28.4) | 31 (27.0) | 63 (29.2) | |
| 60-≤70 | 118 (35.6) | 36 (31.3) | 82 (38.0) | |
| >70 | 70 (21.1) | 25 (21.7) | 45 (20.8) | |
| Sex | ||||
| Female | 122 (36.9) | 41 (35.7) | 81 (37.5) | 0.83 |
| Male | 209 (63.1) | 74 (64.3) | 135 (62.5) | |
| Family history of CRC | ||||
| No | 291 (87.9) | 105 (91.3) | 186 (86.1) | 0.23 |
| Yes | 40 (12.1) | 10 (8.7) | 30 (13.9) | |
| Neoadjuvant therapy | ||||
| No | 290 (87.6) | 104 (90.4) | 186 (86.1) | 0.34 |
| Chemotherapy and/or radiotherapy | 41 (12.4) | 11 (9.6) | 30 (13.9) | |
| Smoking status | ||||
| Never | 266 (80.4) | 92 (80.0) | 174 (80.6) | >0.99 |
| Ever | 65 (19.6) | 23 (20.0) | 42 (19.4) | |
| Alcohol consumption | ||||
| Never | 205 (61.9) | 74 (64.3) | 131 (60.6) | 0.59 |
| Ever | 126 (38.1) | 41 (35.7) | 85 (39.4) | |
| BMI (mean ± sd, kg/m2) | 24.4 ± 3.2 | 24.6 ± 3.3 | 24.3 ± 3.2 | 0.44 |
| Normal (<25.0) | 197 (59.5) | 38 (33.0) | 136 (63.0) | 0.10 |
| Obesity (≥25.0) | 134 (40.5) | 77 (67.0) | 80 (37.0) | |
| Hypertension | ||||
| No | 201 (60.7) | 75 (65.2) | 126 (58.3) | 0.27 |
| Yes | 130 (39.3) | 40 (34.8) | 90 (41.7) | |
| Diabetes | ||||
| No | 261 (78.9) | 94 (81.7) | 167 (77.3) | 0.43 |
| Yes | 70 (21.1) | 21 (18.3) | 49 (22.7) | |
Data are presented as mean ± standard deviation for continuous variables and counts (percentages) for categorical variables
P-values are calculated from a t-test for continuous variables and a Chi-square test for categorical variables
CRC Colorectal cancer, BMI Body mass index