Dataset Information

Association between C-reactive protein, incident liver cancer, and chronic liver disease mortality in the Linxian Nutrition Intervention Trials: a nested case-control study.

ABSTRACT: BACKGROUND:C-reactive protein (CRP) is a marker of systemic inflammation that has been associated with the incidence and prognosis for a number of different cancers. Recent data suggest that CRP may be a prognostic factor for liver cancer and cirrhosis. However, few long-term studies are available. METHODS:We prospectively examined associations between serum CRP and subsequent risk of liver cancer incidence or chronic liver disease mortality in a nested case-control study performed in the Linxian Nutrition Intervention Trials cohort. Baseline serum CRP was measured for 220 incident liver cancer cases, 276 participants who died of chronic liver disease, and 1,018 age-, sex-, and trial-matched controls. Unconditional logistical regression models were used to estimate ORs and 95% confidence intervals (CI). RESULTS:Compared with the lowest quartile, subjects in the fourth quartile of serum CRP had a higher risk of liver cancer incidence (OR, 1.63; 95% CI, 1.06-2.51), with a significant Ptrend across quartiles (P = 0.01). The association with liver cancer was only significant among men (Q4 vs. Q1; OR, 2.00; 1.10-3.62), but not among women (Q4 vs. Q1; OR, 1.15; 0.60-2.22). For chronic liver disease deaths, the corresponding risk estimate in men and women was 2.95 (1.90-4.57), with a monotonic trend (P < 0.001). CONCLUSIONS:Higher serum CRP concentrations at baseline were associated with subsequent incidence of liver cancer and death from chronic liver disease. IMPACT:Our findings suggest that levels of systemic inflammation may serve as a long-term marker of liver cancer and liver disease.

SUBMITTER: Chen W

PROVIDER: S-EPMC4323937 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature

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Association between C-reactive protein, incident liver cancer, and chronic liver disease mortality in the Linxian Nutrition Intervention Trials: a nested case-control study.

Chen Wen W Wang Jian-Bing JB Abnet Christian C CC Dawsey Sanford M SM Fan Jin-Hu JH Yin Liang-Yu LY Yin Jian J Taylor Philip R PR Qiao You-Lin YL Freedman Neal D ND

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 20150122 2

<h4>Background</h4>C-reactive protein (CRP) is a marker of systemic inflammation that has been associated with the incidence and prognosis for a number of different cancers. Recent data suggest that CRP may be a prognostic factor for liver cancer and cirrhosis. However, few long-term studies are available.<h4>Methods</h4>We prospectively examined associations between serum CRP and subsequent risk of liver cancer incidence or chronic liver disease mortality in a nested case-control study performe ...[more]

PMID: 25613115

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Project description:BackgroundA beneficial effect of supplementation with selenium, vitamin E, and beta-carotene was observed on total and cancer mortality in a Chinese population, and it endured for 10 years postintervention, but longer durability is unknown.MethodsA randomized, double-blind, placebo-controlled trial was conducted in Linxian, China, from 1986 to 1991; 29 584 residents age 40 to 69 years received daily supplementations based on a factorial design: Factors A (retinol/zinc), B (riboflavin/niacin), C (vitamin C/molybdenum), and/or D (selenium/vitamin E/beta-carotene), or placebo for 5.25 years, and followed for up 25 years. Hazard ratios (HRs) and 95% confidence intervals (CIs) for the intervention effects on mortalities were estimated using Cox proportional hazards models.ResultsThrough 2016, the interventions showed no effect on total mortality. The previously reported protective effect of Factor D against total mortality was lost 10 years postintervention. The protective effect of Factor D for gastric cancer was attenuated (HR = 0.93, 95% CI = 0.85 to 1.01), but a newly apparent protective effect against esophageal cancer was found for Factor B (HR = 0.92, 95% CI = 0.85 to 1.00, two-sided P = .04). Other protective/adverse associations were observed for cause-specific mortalities. Protective effects were found in people younger than age 55 years at baseline against non-upper gastrointestinal cancer death for Factor A (HR = 0.80, 95% CI = 0.69 to 0.92) and against death from stroke for Factor C (HR = 0.89, 95% CI = 0.82 to 0.96). In contrast, increased risk of esophageal cancer was found when the intervention began after age 55 years for Factors C (HR = 1.16, 95% CI = 1.04 to 1.30) and D (HR = 1.20, 95% CI = 1.07 to 1.34).ConclusionsMultiyear nutrition intervention is unlikely to have a meaningful effect on mortality more than a decade after supplementation ends, even in a nutritionally deprived population. Whether sustained or repeat intervention would provide longer effects needs further investigation.

Project description:BackgroundThe General Population Nutrition Intervention Trial was a randomized primary esophageal and gastric cancer prevention trial conducted from 1985 to 1991, in which 29,584 adult participants in Linxian, China, were given daily vitamin and mineral supplements. Treatment with "factor D," a combination of 50 microg selenium, 30 mg vitamin E, and 15 mg beta-carotene, led to decreased mortality from all causes, cancer overall, and gastric cancer. Here, we present 10-year follow-up after the end of active intervention.MethodsParticipants were assessed by periodic data collection, monthly visits by village health workers, and quarterly review of the Linxian Cancer Registry. Hazard ratios (HRs) and 95% confidence intervals (CIs) for the cumulative effects of four vitamin and mineral supplementation regimens were calculated using adjusted proportional hazards models.ResultsThrough May 31, 2001, 276 participants were lost to follow-up; 9727 died, including 3242 from cancer (1515 from esophageal cancer and 1199 from gastric cancer). Participants who received factor D had lower overall mortality (HR = 0.95, 95% CI = 0.91 to 0.99; P = .009; reduction in cumulative mortality from 33.62% to 32.19%) and gastric cancer mortality (HR = 0.89, 95% CI = 0.79 to 1.00; P = .043; reduction in cumulative gastric cancer mortality from 4.28% to 3.84%) than subjects who did not receive factor D. Reductions were mostly attributable to benefits to subjects younger than 55 years. Esophageal cancer deaths between those who did and did not receive factor D were not different overall; however, decreased 17% among participants younger than 55 (HR = 0.83, 95% CI = 0.71 to 0.98; P = .025) but increased 14% among those aged 55 years or older (HR = 1.14, 95% CI = 1.00 to 1.30; P = .047) [corrected]. Vitamin A and zinc supplementation was associated with increased total and stroke mortality; vitamin C and molybdenum supplementation, with decreased stroke mortality.ConclusionThe beneficial effects of selenium, vitamin E, and beta-carotene on mortality were still evident up to 10 years after the cessation of supplementation and were consistently greater in younger participants. Late effects of other supplementation regimens were also observed.

Dataset Information

Association between C-reactive protein, incident liver cancer, and chronic liver disease mortality in the Linxian Nutrition Intervention Trials: a nested case-control study.

Publications

Association between C-reactive protein, incident liver cancer, and chronic liver disease mortality in the Linxian Nutrition Intervention Trials: a nested case-control study.

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