DVT in Residents in Mid Niigata Prefecture Earthquake after 6 Years: Relationship between DVT and Hypertention

Abstract

Since over one million residents in Mid Niigata Prefecture Earthquake stranded into small compact car, prevalence of deep vein thrombosis (DVT) in residents in the area of the quake has been still high. We investigated prevalence of DVT in the residents every year. Subjected were 867 residents in Ojiya and Tohkamachi City in 2010. 262 of them were first comer. DVT in lower limb was detected in 85 residents by ultrasound examination. Since 17 of 85 residents were first comer since the quake, prevalence of DVT in the area in 2010 was estimated 5.8%. Hypertension was significant correlated with DVT (p<0.01). Cerebral infarction or transient ischemic attack (TIA) in the residents with DVT was significantly higher than those without DVT (odds ratio; 2.73, 95% CI; 1.11–6.68).