Baseline characteristics of the colorectal cancer cases and matched controls
| . | Cases (n = 173) . | Controls (n = 313) . | ||
|---|---|---|---|---|
| Age at blood draw (y), mean (±SD) | 69.5 (±8.3) | 69.2 (±8.2) | ||
| Hours of fasting before blood draw, mean (±SD) | 12.4 (±3.6) | 12.5 (±3.3) | ||
| Male, n (%) | 106 (61) | 187 (60) | ||
| Ethnicity, n (%) | ||||
| Japanese American | 70 (40) | 132 (42) | ||
| African American | 32 (19) | 55 (18) | ||
| Latino | 34 (20) | 59 (19) | ||
| White | 26 (15) | 47 (15) | ||
| Native Hawaiian | 11 (6) | 20 (6) | ||
| Education, n (%)* | ||||
| High school graduate or less | 67 (39) | 110 (35) | ||
| Some postsecondary education | 54 (31) | 96 (31) | ||
| College graduate | 51 (30) | 104 (34) | ||
| Had previous colonoscopy, n (%)* | 62 (36) | 142 (45) | ||
| 1° family history of colorectal cancer, n (%) | 21 (10) | 29 (8) | ||
| Body mass index (kg/m2), n (%)* | ||||
| <25.0 | 70 (40) | 141 (45) | ||
| 25.0-30.0 | 67 (39) | 130 (42) | ||
| ≥30.0 | 36 (21) | 42 (13) | ||
| Smoking history (y), n (%)* | ||||
| None | 68 (40) | 143 (47) | ||
| <10 | 35 (21) | 60 (30) | ||
| 10-<20 | 38 (22) | 51 (17) | ||
| ≥20 | 29 (17) | 48 (16) | ||
| Ethanol (g/d), n (%)* | ||||
| 0 | 77 (45) | 159 (51) | ||
| <8 | 45 (26) | 85 (27) | ||
| ≥8 | 51 (29) | 69 (22) | ||
| Moderate or vigorous physical activity (h/wk), mean (±SD)* | 1.29 (±1.52) | 1.19 (±1.27) | ||
| Dietary variables, as density = g/kcal/d, mean (± SD)* | ||||
| Total vegetables | 162.8 (±92.2) | 167.1 (±83.2) | ||
| Cruciferous vegetables | 24.3 (±25.5) | 26.2 (±22.6) | ||
| Total fruit | 170.2 (±134.2) | 184.7 (±147.2) | ||
| Dietary fiber | 11.5 (±4.6) | 12.1 (±4.5) | ||
| Folate | 175.3 (±75.1) | 189.1 (±86.4) | ||
| Calcium | 341.3 (±113.3) | 367.2 (±138.1) | ||
| Processed meat | 8.0 (±5.8) | 7.4 (±6.4) | ||
| Red meat, not including processed meat | 22.2 (±14.2) | 18.7 (±12.0) | ||
| . | Cases (n = 173) . | Controls (n = 313) . | ||
|---|---|---|---|---|
| Age at blood draw (y), mean (±SD) | 69.5 (±8.3) | 69.2 (±8.2) | ||
| Hours of fasting before blood draw, mean (±SD) | 12.4 (±3.6) | 12.5 (±3.3) | ||
| Male, n (%) | 106 (61) | 187 (60) | ||
| Ethnicity, n (%) | ||||
| Japanese American | 70 (40) | 132 (42) | ||
| African American | 32 (19) | 55 (18) | ||
| Latino | 34 (20) | 59 (19) | ||
| White | 26 (15) | 47 (15) | ||
| Native Hawaiian | 11 (6) | 20 (6) | ||
| Education, n (%)* | ||||
| High school graduate or less | 67 (39) | 110 (35) | ||
| Some postsecondary education | 54 (31) | 96 (31) | ||
| College graduate | 51 (30) | 104 (34) | ||
| Had previous colonoscopy, n (%)* | 62 (36) | 142 (45) | ||
| 1° family history of colorectal cancer, n (%) | 21 (10) | 29 (8) | ||
| Body mass index (kg/m2), n (%)* | ||||
| <25.0 | 70 (40) | 141 (45) | ||
| 25.0-30.0 | 67 (39) | 130 (42) | ||
| ≥30.0 | 36 (21) | 42 (13) | ||
| Smoking history (y), n (%)* | ||||
| None | 68 (40) | 143 (47) | ||
| <10 | 35 (21) | 60 (30) | ||
| 10-<20 | 38 (22) | 51 (17) | ||
| ≥20 | 29 (17) | 48 (16) | ||
| Ethanol (g/d), n (%)* | ||||
| 0 | 77 (45) | 159 (51) | ||
| <8 | 45 (26) | 85 (27) | ||
| ≥8 | 51 (29) | 69 (22) | ||
| Moderate or vigorous physical activity (h/wk), mean (±SD)* | 1.29 (±1.52) | 1.19 (±1.27) | ||
| Dietary variables, as density = g/kcal/d, mean (± SD)* | ||||
| Total vegetables | 162.8 (±92.2) | 167.1 (±83.2) | ||
| Cruciferous vegetables | 24.3 (±25.5) | 26.2 (±22.6) | ||
| Total fruit | 170.2 (±134.2) | 184.7 (±147.2) | ||
| Dietary fiber | 11.5 (±4.6) | 12.1 (±4.5) | ||
| Folate | 175.3 (±75.1) | 189.1 (±86.4) | ||
| Calcium | 341.3 (±113.3) | 367.2 (±138.1) | ||
| Processed meat | 8.0 (±5.8) | 7.4 (±6.4) | ||
| Red meat, not including processed meat | 22.2 (±14.2) | 18.7 (±12.0) | ||
Totals do not always sum to 173 and 313 because of missing values.