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An investigation of two-dimensional ultrasound carotid plaque presence and intima media thickness in middle-aged South Asian and European men living in the United kingdom.

Ghouri N, Purves D, Deans KA, Logan G, McConnachie A, Wilson J, Gill JM, Sattar N - PLoS ONE (2015)

Bottom Line: We determined whether South Asians have a difference in these ultrasound markers compared to Europeans living in the United Kingdom and whether measured risk factor(s) could account for any such differences.Physical activity, cardiorespiratory fitness, anthropometry and blood pressure were assessed, fasted blood taken for measurement of cardiometabolic risk factors and demographic and lifestyle factors recorded.Age-adjusted mean (SD) cIMT was similar in South Asians and Europeans (0.64 (0.16) mm v 0.65 (0.12) mm, p = 0.64).

View Article: PubMed Central - PubMed

Affiliation: BHF Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom.

ABSTRACT

Objectives: Ultrasound studies of carotid intima media thickness (cIMT) and plaques are limited in South Asians, a group at elevated cardiovascular disease (CVD) risk. We determined whether South Asians have a difference in these ultrasound markers compared to Europeans living in the United Kingdom and whether measured risk factor(s) could account for any such differences.

Methods: One hundred South Asian men, aged 40 to 70 years and 100 European men of similar age and BMI, without diagnosed CVD or diabetes, underwent carotid ultrasound for measurement of cIMT and carotid plaque presence. Physical activity, cardiorespiratory fitness, anthropometry and blood pressure were assessed, fasted blood taken for measurement of cardiometabolic risk factors and demographic and lifestyle factors recorded.

Results: Age-adjusted mean (SD) cIMT was similar in South Asians and Europeans (0.64 (0.16) mm v 0.65 (0.12) mm, p = 0.64). Plaque was present in 48 South Asians and 37 Europeans and overall, there was no age-adjusted difference between South Asian and Europeans for plaque score(odds ratio 1.49, 95% CI, 0.86-2.80, p = 0.16), however, South Asians appeared to have more plaques at a younger age than Europeans; at age 40-50 years the odds of South Asians having plaques was 2.63 (95% CI, 1.16-5.93) times that for Europeans.

Conclusions: cIMT is similar between healthy South Asian and European men. Whilst there was no overall difference in plaque presence in South Asians, there is an indication of greater plaque prevalence at younger ages--an observation requiring further investigation. Prospective studies linking plaques to CVD outcomes in South Asians are needed to investigate whether these measures help improve CVD risk prediction.

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Carotid intima media thickness by age decade and ethnicity.Number of participants in each age decade (South Asian, European): 40–49 (55, 55); 50–59 (34, 36); 60–69 (11, 9)
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pone.0123317.g001: Carotid intima media thickness by age decade and ethnicity.Number of participants in each age decade (South Asian, European): 40–49 (55, 55); 50–59 (34, 36); 60–69 (11, 9)

Mentions: Differences in ultrasound markers of atherosclerosis are presented in Table 3. There were no significant differences in unadjusted or age-adjusted mean cIMT between South Asians and Europeans. Fig 1 shows the differences in cIMT for each ethnic group, by age category. The expected trend of increasing mean cIMT with age was present for each ethnic group; however, there were no differences in mean cIMT between the ethnic groups in any age group. In regression analysis, cIMT was higher by 0.08 mm (95% CI, 0.06–0.11; p<0.001) for every ten year higher age, with a similar increase observed for each ethnic group (p = 0.177 for ethnicity by age interaction).


An investigation of two-dimensional ultrasound carotid plaque presence and intima media thickness in middle-aged South Asian and European men living in the United kingdom.

Ghouri N, Purves D, Deans KA, Logan G, McConnachie A, Wilson J, Gill JM, Sattar N - PLoS ONE (2015)

Carotid intima media thickness by age decade and ethnicity.Number of participants in each age decade (South Asian, European): 40–49 (55, 55); 50–59 (34, 36); 60–69 (11, 9)
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4401566&req=5

pone.0123317.g001: Carotid intima media thickness by age decade and ethnicity.Number of participants in each age decade (South Asian, European): 40–49 (55, 55); 50–59 (34, 36); 60–69 (11, 9)
Mentions: Differences in ultrasound markers of atherosclerosis are presented in Table 3. There were no significant differences in unadjusted or age-adjusted mean cIMT between South Asians and Europeans. Fig 1 shows the differences in cIMT for each ethnic group, by age category. The expected trend of increasing mean cIMT with age was present for each ethnic group; however, there were no differences in mean cIMT between the ethnic groups in any age group. In regression analysis, cIMT was higher by 0.08 mm (95% CI, 0.06–0.11; p<0.001) for every ten year higher age, with a similar increase observed for each ethnic group (p = 0.177 for ethnicity by age interaction).

Bottom Line: We determined whether South Asians have a difference in these ultrasound markers compared to Europeans living in the United Kingdom and whether measured risk factor(s) could account for any such differences.Physical activity, cardiorespiratory fitness, anthropometry and blood pressure were assessed, fasted blood taken for measurement of cardiometabolic risk factors and demographic and lifestyle factors recorded.Age-adjusted mean (SD) cIMT was similar in South Asians and Europeans (0.64 (0.16) mm v 0.65 (0.12) mm, p = 0.64).

View Article: PubMed Central - PubMed

Affiliation: BHF Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, United Kingdom.

ABSTRACT

Objectives: Ultrasound studies of carotid intima media thickness (cIMT) and plaques are limited in South Asians, a group at elevated cardiovascular disease (CVD) risk. We determined whether South Asians have a difference in these ultrasound markers compared to Europeans living in the United Kingdom and whether measured risk factor(s) could account for any such differences.

Methods: One hundred South Asian men, aged 40 to 70 years and 100 European men of similar age and BMI, without diagnosed CVD or diabetes, underwent carotid ultrasound for measurement of cIMT and carotid plaque presence. Physical activity, cardiorespiratory fitness, anthropometry and blood pressure were assessed, fasted blood taken for measurement of cardiometabolic risk factors and demographic and lifestyle factors recorded.

Results: Age-adjusted mean (SD) cIMT was similar in South Asians and Europeans (0.64 (0.16) mm v 0.65 (0.12) mm, p = 0.64). Plaque was present in 48 South Asians and 37 Europeans and overall, there was no age-adjusted difference between South Asian and Europeans for plaque score(odds ratio 1.49, 95% CI, 0.86-2.80, p = 0.16), however, South Asians appeared to have more plaques at a younger age than Europeans; at age 40-50 years the odds of South Asians having plaques was 2.63 (95% CI, 1.16-5.93) times that for Europeans.

Conclusions: cIMT is similar between healthy South Asian and European men. Whilst there was no overall difference in plaque presence in South Asians, there is an indication of greater plaque prevalence at younger ages--an observation requiring further investigation. Prospective studies linking plaques to CVD outcomes in South Asians are needed to investigate whether these measures help improve CVD risk prediction.

Show MeSH
Related in: MedlinePlus