BACKGROUND AND PURPOSE: In the discussion on the cost-effectiveness of screening, precise estimates of severe asymptomatic carotid stenosis are vital. Accordingly, we assessed the prevalence of moderate and severe asymptomatic carotid stenosis by age and sex using pooled cohort data. METHODS: We performed an individual participant data meta-analysis (23 706 participants) of 4 population-based studies (Malmö Diet and Cancer Study, Tromsø, Carotid Atherosclerosis Progression Study, and Cardiovascular Health Study). Outcomes of interest were asymptomatic moderate (> or =50%) and severe carotid stenosis (> or =70%). RESULTS: Prevalence of moderate asymptomatic carotid stenosis ranged from 0.2% (95% CI, 0.0% to 0.4%) in men aged <50 years to 7.5% (5.2% to 10.5%) in men aged > or =80 years. For women, this prevalence increased from 0% (0% to 0.2%) to 5.0% (3.1% to 7.5%). Prevalence of severe asymptomatic carotid stenosis ranged from 0.1% (0.0% to 0.3%) in men aged <50 years to 3.1% (1.7% to 5.3%) in men aged > or =80. For women, this prevalence increased from 0% (0.0% to 0.2%) to 0.9% (0.3% to 2.4%). CONCLUSIONS: The prevalence of severe asymptomatic carotid stenosis in the general population ranges from 0% to 3.1%, which is useful information in the discussion on the cost-effectiveness of screening.
BACKGROUND AND PURPOSE: In the discussion on the cost-effectiveness of screening, precise estimates of severe asymptomatic carotid stenosis are vital. Accordingly, we assessed the prevalence of moderate and severe asymptomatic carotid stenosis by age and sex using pooled cohort data. METHODS: We performed an individual participant data meta-analysis (23 706 participants) of 4 population-based studies (Malmö Diet and Cancer Study, Tromsø, Carotid Atherosclerosis Progression Study, and Cardiovascular Health Study). Outcomes of interest were asymptomatic moderate (> or =50%) and severe carotid stenosis (> or =70%). RESULTS: Prevalence of moderate asymptomatic carotid stenosis ranged from 0.2% (95% CI, 0.0% to 0.4%) in men aged <50 years to 7.5% (5.2% to 10.5%) in men aged > or =80 years. For women, this prevalence increased from 0% (0% to 0.2%) to 5.0% (3.1% to 7.5%). Prevalence of severe asymptomatic carotid stenosis ranged from 0.1% (0.0% to 0.3%) in men aged <50 years to 3.1% (1.7% to 5.3%) in men aged > or =80. For women, this prevalence increased from 0% (0.0% to 0.2%) to 0.9% (0.3% to 2.4%). CONCLUSIONS: The prevalence of severe asymptomatic carotid stenosis in the general population ranges from 0% to 3.1%, which is useful information in the discussion on the cost-effectiveness of screening.
Authors: Ian Graham; Dan Atar; Knut Borch-Johnsen; Gudrun Boysen; Gunilla Burell; Renata Cifkova; Jean Dallongeville; Guy De Backer; Shah Ebrahim; Bjørn Gjelsvik; Christoph Herrmann-Lingen; Arno Hoes; Steve Humphries; Mike Knapton; Joep Perk; Silvia G Priori; Kalevi Pyorala; Zeljko Reiner; Luis Ruilope; Susana Sans-Menendez; Wilma Scholte op Reimer; Peter Weissberg; David Wood; John Yarnell; Jose Luis Zamorano; Edmond Walma; Tony Fitzgerald; Marie Therese Cooney; Alexandra Dudina Journal: Eur Heart J Date: 2007-08-28 Impact factor: 29.983
Authors: D H O'Leary; J F Polak; R A Kronmal; S J Kittner; M G Bond; S K Wolfson; W Bommer; T R Price; J M Gardin; P J Savage Journal: Stroke Date: 1992-12 Impact factor: 7.914
Authors: Pablo Alonso-Coello; Sergi Bellmunt; Catherine McGorrian; Sonia S Anand; Randolph Guzman; Michael H Criqui; Elie A Akl; Per Olav Vandvik; Maarten G Lansberg; Gordon H Guyatt; Frederick A Spencer Journal: Chest Date: 2012-02 Impact factor: 9.410