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Table 1 Baseline characteristicsa of respondents, Tehran Lipid and Glucose Study (1999–2015)

From: Optimal cut-points of different anthropometric indices and their joint effect in prediction of type 2 diabetes: results of a cohort study

  Men (N = 2988) Women (N = 4029) Difference (CI)
Age (years) 37.8 (10.2) 37.3 (10.4) 0.5 (0.0;0.1)
Family History of T2D; No. (%) 790 (26.4) 1115 (27.7) −1.2% (−3.3;0.8)
Education Level; No. (%)
  < 6 years 471 (15.8) 1127 (28.0) −12.2% (− 14.1; − 10.3)
 6–12 years 1888 (63.2) 2402 (59.6) 3.6% (1.2;5.9)
  > 12 years 629 (21.1) 500 (12.4) 8.6% (7.8; 10.4)
Wrist Circumference (cm) 17.6 (1.0) 15.9 (1.0) 1.7 (1.6; 1.7)
WC (cm) 88.4 (11.1) 86.0 (12.3) 2.4 (1.8;2.9)
Height (cm) 171.1 (6.6) 157.4 (5.8) 13.7 (13.4;14.0)
WHtR 0.51 (0.06) 0.54 (0.08) −0.03 (−0.033; −0.026)
BMI (kg/m2) 25.7 (4.1) 27.2 (4.9) −1.5 (−1.7; −1.3)
HC(cm) 96.8 (7.2) 103.9 (9.5) −7.1 (−7.6; −6.7)
WHR 0.91 (0.06) 0.82 (0.07) 0.08 (0.08;0.09)
SBP (mmHg) 116.0(14.1) 113.5 (15.6) 2.5 (1.8;3.3)
DBP (mmHg) 76.6 (10.3) 75.8 (10.3) 0.8 (0.3;1.3)
FPG (mmol/L) 5.00 (0.50) 4.91 (0.51) 0.09 (0.07;1.2)
Log TG/HDL-C 0.60 (0.71) 0.26 (0.69) 0.37 (0.34;0.40)
  1. aFor continuous variables, values are presented as mean (SD) and difference (95% CI) was estimated using linear regression models. Categorical variables are presented as frequency (percentage) and difference (95% CI) was estimated by logistic regression
  2. CI confidence interval, T2D type 2 diabetes mellitus, WC waist circumference, WHtR waist to height ratio, BMI body mass index, HC hip circumference, WHR waist to hip ratio, SBP systolic blood pressure, DBP diastolic blood pressure, FPG fasting plasma glucose, TG/HDL-C triglyceride to high density lipoprotein cholesterol ratio