TY - JOUR
T1 - Sitting time and waist circumference are associated with glycemia in U.K. South Asians
T2 - Data from 1,228 adults screened for the PODOSA trial
AU - Gill, Jason M.R.
AU - Bhopal, Raj
AU - Douglas, Anne
AU - Wallia, Sunita
AU - Bhopal, Ruby
AU - Sheikh, Aziz
AU - Forbes, John F.
AU - McKnight, John
AU - Sattar, Naveed
AU - Murray, Gordon
AU - Lean, Michael E.J.
AU - Wild, Sarah H.
PY - 2011/5
Y1 - 2011/5
N2 - OBJECTIVE - To investigate the independent contributions of waist circumference, physical activity, and sedentary behavior on glycemia in South Asians living in Scotland. RESEARCH DESIGN AND METHODS - Participants were 1,228 (523 men and 705 women) adults of Indian or Pakistani origin screened for the Prevention of Type 2 Diabetes and Obesity in South Asians (PODOSA) trial. All undertook an oral glucose tolerance test, had physical activity and sitting time assessed by International Physical Activity Questionnaire, and had waist circumference measured. RESULTS - Mean ± SD age and waist circumferencewere 49.8 ± 10.1 years and 99.2 ± 10.2cm, respectively. One hundred ninety-one participants had impaired fasting glycemia or impaired glucose tolerance, and 97 had possible type 2 diabetes. In multivariate regression analysis, age (0.012 mmol · L-1 · year-1 [95%CI 0.006-0.017]) and waist circumference (0.018mmol · L-1 · cm-1 [0.012-0.024]) were significantly independently associated with fasting glucose concentration, and age (0.032 mmol · L-1 · year-1 [0.016-0.049]), waist (0.057 mmol · L-1 · cm -1 [0.040-0.074]), and sitting time (0.097 mmol · L -1 · h-1 · day-1 [0.036-0.158]) were significantly independently associated with 2-h glucose concentration. Vigorous activity time had a borderline significant association with 2-h glucose concentration (-0.819 mmol · L-1 · h-1 · day-1 [-1.672 to 0.034]) in the multivariate model. CONCLUSIONS - These data highlight an important relationship between sitting time and 2-h glucose levels in U.K. South Asians, independent of physical activity and waist circumference. Although the data are cross-sectional and thus do not permit firm conclusions about causality to be drawn, the results suggest that further study investigating the effects of sitting time on glycemia and other aspects of metabolic risk in South Asian populations is warranted.
AB - OBJECTIVE - To investigate the independent contributions of waist circumference, physical activity, and sedentary behavior on glycemia in South Asians living in Scotland. RESEARCH DESIGN AND METHODS - Participants were 1,228 (523 men and 705 women) adults of Indian or Pakistani origin screened for the Prevention of Type 2 Diabetes and Obesity in South Asians (PODOSA) trial. All undertook an oral glucose tolerance test, had physical activity and sitting time assessed by International Physical Activity Questionnaire, and had waist circumference measured. RESULTS - Mean ± SD age and waist circumferencewere 49.8 ± 10.1 years and 99.2 ± 10.2cm, respectively. One hundred ninety-one participants had impaired fasting glycemia or impaired glucose tolerance, and 97 had possible type 2 diabetes. In multivariate regression analysis, age (0.012 mmol · L-1 · year-1 [95%CI 0.006-0.017]) and waist circumference (0.018mmol · L-1 · cm-1 [0.012-0.024]) were significantly independently associated with fasting glucose concentration, and age (0.032 mmol · L-1 · year-1 [0.016-0.049]), waist (0.057 mmol · L-1 · cm -1 [0.040-0.074]), and sitting time (0.097 mmol · L -1 · h-1 · day-1 [0.036-0.158]) were significantly independently associated with 2-h glucose concentration. Vigorous activity time had a borderline significant association with 2-h glucose concentration (-0.819 mmol · L-1 · h-1 · day-1 [-1.672 to 0.034]) in the multivariate model. CONCLUSIONS - These data highlight an important relationship between sitting time and 2-h glucose levels in U.K. South Asians, independent of physical activity and waist circumference. Although the data are cross-sectional and thus do not permit firm conclusions about causality to be drawn, the results suggest that further study investigating the effects of sitting time on glycemia and other aspects of metabolic risk in South Asian populations is warranted.
UR - http://www.scopus.com/inward/record.url?scp=79956133188&partnerID=8YFLogxK
U2 - 10.2337/dc10-2313
DO - 10.2337/dc10-2313
M3 - Article
C2 - 21464463
AN - SCOPUS:79956133188
SN - 0149-5992
VL - 34
SP - 1214
EP - 1218
JO - Diabetes Care
JF - Diabetes Care
IS - 5
ER -
