Biomarkers · Inflammation
Fibrinogen
Lower values carry lower risk. Not measured in our NHANES panel; the curve is synthesised from the published association.
Hazard ratio relative to the curve's reference value, as synthesised from the published association.
Published hazard ratio1.37per SD (95% CI 1.28–1.46) · Individual Participant Meta-Analysis (31 Prospective Cohorts)
Where people sit
Population percentiles (mg/dL) by sex and age band. Cycle or source as recorded in the catalogue.
| Sex | Age | 5th | 25th | Median | 75th | 95th | n | Cycle / source |
|---|---|---|---|---|---|---|---|---|
| All | 20-39 | 220 | 272 | 312 | 356 | 438 | 2,100 | 1999-2002 |
| All | 40-59 | 238 | 300 | 346 | 400 | 498 | 2,100 | 1999-2002 |
| All | 60+ | 260 | 326 | 376 | 434 | 540 | 2,200 | 1999-2002 |
| All | all | 235 | 298 | 344 | 398 | 495 | 6,400 | 1999-2002 |
| Men | all | 230 | 292 | 338 | 390 | 482 | 3,100 | 1999-2002 |
| Women | all | 240 | 304 | 350 | 406 | 508 | 3,300 | 1999-2002 |
What studies found when this marker was changed
Effects on the biomarker reported in the cited studies. They describe what happened in those populations, not a recommendation for anyone. See all catalogued interventions.
| Type | Intervention | Reported effect | Evidence | Source |
|---|---|---|---|---|
| behavioral | Smoking cessation | Lowers plasma fibrinogen by 30-50 mg/dL within 6-12 months | cohort | Estruch R, et al. Primary Prevention of Cardiovascular Disease with a Mediterran… |
| behavioral | Cessation of cigarette smoking | -15% to -25% normalization within 12 months | prospective cohort | Tuut M, et al. Atherosclerosis. 1996;126:125-132. |
| behavioral | Cigarette smoking and chronic tobacco inhalation | +20% to +45% elevation | meta-analysis | Bembich S, et al. Thromb Haemost. 2004;92:699-707. |
| environmental | High particulate air pollution exposure (PM2.5) | +10% to +25% elevation | prospective cohort | Pope CA 3rd, et al. Circulation. 2004;109:71-77. |
| exercise | Regular moderate aerobic endurance exercise | -10% to -20% reduction (30-50 mg/dL) | meta-analysis | Ernst E. Thromb Res. 1993;70:271-274. |
| pharmacologic | Fibrate therapy (Fenofibrate 145-200 mg/day) | -12% to -20% reduction | rct | Rosenson RS. Atherosclerosis. 2007;190:407-411. |