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Table 1 Baseline descriptive data for the cohort random sample and for cases of incident diabetes. ELSA-Brasil Rio Grande do Sul Center, 2008–2010

From: Aryl-hydrocarbon receptor binding and the incidence of type 2 diabetes: the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

Variable Cohort Random Sample N = 472 Incident Cases N = 71 p-value*
N(%) / Mean (SD) N(%) / Mean (SD)
AhRL (FI) 2.2 (0.6) 2.3 (0.6) 0.1933
MIS-ATP (%) 87.4 (9.8) 82.0 (9.9) < 0.0001
Sex
 Female 268 (56.8%) 40 (56.3%) 0.9442
Schooling
 Incomplete High School 53 (11.2%) 11 (15.6%) 0.1989
 Incomplete University Education 147 (31.1%) 27 (38.3%)  
 Complete University Education 272 (57.6%) 33 (46.5%)  
Smoking
 Never 289 (61.2%) 43 (60.6%) 0.9294
 Former 124 (26.3%) 18 (25.3%)  
 Current 59 (12.5%) 10 (14.1%)  
Number of cigarettes (all participants) 0.9 (4.3) 2.4 (0.1) 0.0270
Number of cigarettes (among those who smoked) 13.5 (11.4) 32.0 (18.2) 0.0047
Family History of Diabetes
 Yes 154 (32.64%) 29 (40.9%) 0.1720
Race/Ethnicity
 Not white 103 (21.8%) 19 (26.8%) 0.3526
Age 53.1 (9.1) 53.9 (9.3) 0.4821
BMI (kg/m2) 26.5 (4.3) 28.5 (4.4) 0.0003
Waist/Hip Ratio 0.93 (0.08) 0.89 (0.09) 0.0002
  1. *p-value are for comparisons between incident cases and the cohort random sample, calculated through t-tests for continuous variables and chi-square tests for categorical variables, using appropriate weighting
  2. AhRL = aryl hydrocarbon receptor ligand-mediated luciferase bioactivity
  3. FI = fold induction compared with that of control cells incubated with charcoal-stripped human serum
  4. MIS-ATP = intracellular ATP content in serum incubated samples
  5. % = % of ATP content present in control cells incubated with charcoal stripped serum