Table 3.
Overall Mortality | CRC-Specific Mortality a | ||||||
---|---|---|---|---|---|---|---|
Risk Factor | Deaths/Total | HR (95% CI) b | Ptrend d or interaction c | Deaths/Total | HR (95% CI) b | Ptrend d or interaction c | |
Selenium | |||||||
All participants | 514/993 | 0.91 (0.83–1.00) | 0.04 d | 395/969 | 0.90 (0.81–1.00) | 0.06 d | |
Sensitivity analyses | |||||||
Complete CRC stage data e | 450/857 | 0.91 (0.82–1.00) | 0.05 d | 355/839 | 0.92 (0.82–1.03) | 0.14 d | |
Imputed CRC stage data | 514/993 | 0.92 (0.84–1.01) | 0.07 d | 395/969 | 0.91 (0.82–1.02) | 0.09 d | |
Follow-up (years) | |||||||
≥2 | 257/732 | 0.94 (0.83–1.07) | 0.37 d | 165/711 | 0.94 (0.80–1.10) | 0.42 d | |
≥4 | 158/631 | 1.02(0.87–1.19) | 0.83 d | 77/611 | 1.03 (0.84–1.28) | 0.76 d | |
Time between blood collection and diagnosis (years) | |||||||
<2.6 | 176/330 | 0.93 (0.78–1.12) | 0.03 | 138/325 | 0.89 (0.73–1.10) | 0.01 | |
[2.6–4.8) | 175/332 | 0.86 (0.73–1.01) | 133/321 | 0.84 (0.70–1.02) | |||
≥4.8 | 163/331 | 1.00 (0.83–1.21) | 124/323 | 1.00 (0.80–1.25) | |||
Stratified Analyses | |||||||
Sex | |||||||
Women | 252/516 | 0.92 (0.80–1.06) | 0.52 | 202/505 | 0.93 (0.79–1.08) | 0.48 | |
Men | 262/477 | 0.87 (0.77–1.00) | 193/464 | 0.86 (0.73–1.01) | |||
Age at diagnosis (years) | |||||||
<62.4 | 215/497 | 0.94 (0.80–1.11) | 0.51 | 184/493 | 0.95 (0.80–1.13) | 0.38 | |
≥62.4 | 299/496 | 0.89 (0.79–1.00) | 211/476 | 0.86 (0.75–0.99) | |||
Cancer site | |||||||
Colon | 333/626 | 0.89(0.80–1.00) | 0.56 | 255/611 | 0.89 (0.78–1.01) | 0.87 | |
Rectum | 181/367 | 0.92 (0.77–1.09) | 140/358 | 0.90 (0.74–1.09) | |||
Stage e | |||||||
I–II | 128/413 | 1.03 (0.84–1.25) | 0.11 | 79/399 | 1.08 (0.85–1.37) | 0.10 | |
III–IV | 322/444 | 0.90 (0.80–1.01) | 276/440 | 0.89 (0.78–1.01) | |||
Region f | |||||||
Northern | 194/330 | 0.79 (0.68–0.91) | 0.03 | 158/325 | 0.75 (0.64–0.89) | 0.01 | |
Central | 227/436 | 0.97 (0.83–1.13) | 163/418 | 0.94 (0.79–1.13) | |||
Southern | 93/227 | 1.03 (0.81–1.30) | 74/226 | 1.21 (0.92–1.58) | |||
Selenoprotein P | |||||||
All participants | 513/990 | 0.94 (0.85, 1.03) | 0.17 d | 395/966 | 0.95 (0.86–1.06) | 0.39 d | |
Sensitivity analyses | |||||||
Complete CRC stage data e | 450/856 | 0.94 (0.84, 1.04) | 0.22 d | 355/838 | 0.95 (0.86–1.06) | 0.39 d | |
Imputed CRC stage data | 513/990 | 0.94 (0.86, 1.04) | 0.24 d | 395/966 | 0.97 (0.87–1.08) | 0.58 d | |
Follow-up (years) | |||||||
≥2 | 257/730 | 0.93 (0.82, 1.07) | 0.31 d | 165/709 | 0.97 (0.82–1.15) | 0.74 d | |
≥4 | 158/629 | 0.99 (0.83, 1.17) | 0.88 d | 77/609 | 1.10 (0.86–1.40) | 0.45 d | |
Time between blood collection and diagnosis (years) | |||||||
<2.6 | 176/329 | 0.88 (0.74–1.05) | 0.15 | 138/324 | 0.88 (0.72–1.07) | 0.45 | |
[2.6–4.8) | 175/331 | 0.87(0.74–1.04) | 133/320 | 0.90 (0.74–1.10) | |||
≥4.8 | 162/330 | 1.06(0.88–1.28) | 124/322 | 1.16 (0.93–1.44) | |||
Stratified Analyses | |||||||
Sex | |||||||
Women | 252/514 | 0.91(0.79–1.06) | 0.74 | 202/503 | 0.97 (0.82–1.15) | 0.76 | |
Men | 261/476 | 0.92(0.81–1.05) | 193/463 | 0.92 (0.79–1.08) | |||
Age at diagnosis (years) | |||||||
<62.4 | 216/497 | 0.91(0.78–1.07) | 0.66 | 185/493 | 0.91 (0.76–1.08) | 0.83 | |
≥62.4 | 297/493 | 0.93(0.82–1.05) | 210/473 | 0.97 (0.84–1.12) | |||
Cancer site | |||||||
Colon | 332/626 | 0.94(0.84–1.06) | 0.80 | 255/611 | 0.97 (0.85–1.10) | 0.84 | |
Rectum | 181/364 | 0.86(0.71–1.04) | 140/355 | 0.94 (0.76–1.17) | |||
Stage e | |||||||
I–II | 127/410 | 0.95(0.78–1.15) | 0.90 | 78/396 | 1.09 (0.85–1.38) | 0.37 | |
III–IV | 323/446 | 0.95(0.84–1.08) | 277/442 | 0.96 (0.84–1.11) | |||
Region f | |||||||
Northern | 194/330 | 0.88(0.77–1.01) | 0.49 | 158/325 | 0.90 (0.77–1.05) | 0.31 | |
Central | 226/432 | 0.96(0.82–1.13) | 163/414 | 0.94 (0.78–1.14) | |||
Southern | 93/228 | 1.03(0.79–1.34) | 74/227 | 1.20 (0.88–1.62) |
a Excluded 24 cases with missing cause of death. b Adjusted for age, sex, stage, smoking status, BMI, site of primary tumor, year of diagnosis, and baseline diabetes. Stratified by country. c P for trend or interaction (as estimated by the likelihood ratio test). d P for trend. e Participants with missing data were not included in the analysis. f Geographic regions: Northern = Denmark; Central = UK, The Netherlands, Germany, North of France; Southern = South of France, Italy, Spain.