Forest plots illustrating the findings of a meta-analysis of included studies. a) Association of carotid plaque presence on ultrasound with risk of stroke in 8 studies, n=23,792; including 12,635 women and 11,157 men; b) Association of carotid plaque presence on ultrasound with risk of coronary heart related events in 7 studies, n=24,115; including 12,392 women and 11,723 men.