Table 2.
Percentage of subjects with the indicated characteristic in each RELMβ quartile (Q1–Q4).
| Characteristics | RLMβ (ng/mL) |
P-values for Spearman correlation | |||
|---|---|---|---|---|---|
| Q1a <0.087 | Q2 0.087–0.122 | Q3 0.123–0.167 | Q4 >0.168 | ||
| Proportions | |||||
| No college education | 37.21% | 26.19% | 29.60% | 30.23% | 0.111 |
| Non-Caucasianb | 37.21% | 30.95% | 22.73% | 11.63% | <0.001 |
| Current smoker | 23.26% | 21.43% | 18.60% | 30.23% | 0.433 |
| Daily alcohol use | 13.95% | 16.67% | 23.64% | 30.23% | 0.126 |
| Regular NSAID usec | 30.23% | 23.81% | 31.82% | 30.23% | 0.987 |
| History of Polyp | 13.95% | 21.43% | 20.45% | 27.91% | 0.919 |
| Colorectal cancer in family | 13.95% | 16.67% | 6.82% | 18.60% | 0.624 |
| Medians | |||||
| Pack-years of cigarette smoking | 3.50 | 2.60 | 9.00 | 20.45 | 0.006 |
| Body mass index | 28.46 | 28.27 | 31.07 | 30.01 | 0.480 |
| Total energy intake (kcal/day) | 1976 | 2282 | 2180 | 2109 | 0.673 |
| % calories from fat | 38.56 | 39.60 | 38.52 | 36.96 | 0.457 |
| Red meat (servings/week) | 8.56 | 10.29 | 8.69 | 9.20 | 0.721 |
| Dietary fiber (g/day) | 17.96 | 17.14 | 18.95 | 17.65 | 0.249 |
| Total calcium (mg/day) | 943 | 879 | 911 | 861 | 0.719 |
| Height (m) | 1.70 | 1.70 | 1.69 | 1.75 | 0.582 |
| Physical activity index | 30.80 | 30.64 | 29.49 | 28.87 | 0.031 |
a
N for quartiles Q1–Q4 are 43,42,44 and 43, respectively, except 41, 42, 34, and 42 for pack-years and 43,42,43 and 43 for physical activity.
b
NSAID: non-steroidal anti-inflammatory drugs, regular use ≥ 3 times per week for 6 months or longer.
c
Non-Caucasians (N=44) include 37 African Americans, 2 Hispanic and 2 Asian and 3 others.