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T Sankai

Publications and source records attributed to T Sankai.

59 records · Page 4Linked to original sources
PubMed1991

The relation of body fat distribution and body mass with haemoglobin A1c, blood pressure and blood lipids in urban Japanese men.

The relation of body fat distribution and body mass with haemoglobin A1c, blood pressure and blood lipids were examined in 874 men aged 40 to 59 not taking medication for diabetes mellitus and who worked for an urban company in Japan. Body fat distribution was measured by the waist hip circumference ratio. Body mass was estimated by Quetelet index. Haemoglobin A1c was measured from casual venous blood samples by high-pressure liquid chromatography. Measurement of haemoglobin A1c was validated by a 75 g oral glucose tolerance test conducted in a 7% sample. There was a dose-response relation between waist-hip ratio and haemoglobin A1c concentration while the relation between body mass index and haemoglobin A1c was not evident. Using linear regression to control for age, serum total cholesterol, usual alcohol consumption, cigarette smoking and body mass index, the positive association between waist-hip ratio and haemoglobin A1c remained significant (p = 0.02). This was not true for the positive association between body mass index and haemoglobin A1c (p = 0.32). Both waist-hip ratio and body mass index were positively associated with blood pressure and serum total cholesterol, and inversely associated with HDL-cholesterol. The associations of waist-hip ratio with blood pressure and blood lipids were significant after controlling for body mass index. Therefore, the waist-hip ratio is a correlate of both glucose abnormalities and known coronary risk factors in urban Japanese men even when body mass is controlled for.

Adult↗
PubMed1991

[A population-based study of the proportion by type of stroke determined by computed tomography scan].

To investigate the proportion by type of stroke in communities, a stroke surveillance was conducted in three rural populations between 1979 and 1987. Among 411 stroke patients aged 40 and over determined by the modified Millikan's stroke criteria, the type of stroke was analyzed using computed tomography (CT) criteria for 273 patients who were examined by CT. 1. Incidence rates of stroke determined by the modified Millikan's criteria did not vary among the three populations in all age-sex groups except for men aged 60-69. 2. The proportion of stroke patients who had CT examinations was 84-88% for men and women aged 40-69 in the three communities. 3. According to the CT criteria, the proportion by type of stroke in patients aged 40-69 in the three communities was 32% for cerebral hemorrhage, 16% for subarachnoid hemorrhage, 42% for cerebral infarction and 10% for unspecified stroke without CT abnormalities. Among the total with cerebral infarction, the proportion with cerebral infarction in penetrating artery regions, mostly lacunar infarction, was 65% and that of infarction in cortical artery regions, mostly thromboembolic infarction, was 35% for patients aged 40-69. 4. Cerebral infarction in cortical artery regions was classified further into embolic, thrombotic and unspecified types based on CT findings, the presence of embolic origin, and symptoms at the onset. The proportion of these three types of infarction were similar in patients aged 40-69. Compared with hospital-based studies in Japan, the present population-based study showed a higher proportion of cerebral infarction and infarction in penetrating artery regions. This study also indicated that the proportion of cerebral hemorrhage and infarction in penetrating artery regions was higher and that of infarction in cortical artery regions lower in Japanese than in Caucasians.

Adult↗
PubMed1991

[Secular trends in prevalence and incidence of atrial fibrillation and associated factors in a Japanese rural population].

To investigate secular trends in prevalence and incidence of atrial fibrillation and associated factors, data from population studies of a northeast rural Japanese community, were explored. Cross-sectional studies for men and women aged 40-69 year were conducted in 1963-1966, 1972-1975 and 1984-1987. Age-adjusted prevalence rates of atrial fibrillation show no significant change in both men and women during these three periods. Over 80% of atrial fibrillation in each period showed no clinical evidence of rheumatic valvular disease, myocardial infarction, idiopathic cardiomyopathy, congenital heart disease and hyperthyroidism. Cohorts of men and women aged 40-69 year without atrial fibrillation at baseline were constructed in 1963-1966 (1,920 persons) and in 1972-1975 (2,325 persons) and followed until 1974 and 1987, respectively. In both cohorts, incidence of atrial fibrillation without these organic diseases was positively associated with hypertension related funduscopic abnormality and urine protein. Age-adjusted incidence rates of atrial fibrillation declined in both men and women between the two cohorts. This decline which was greater in hypertensives than in normotensives may in part reflect improvements in hypertension control in this community.

Adult↗