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Table 1 Baseline characteristics of the participants with and without Type 2 diabetes mellitus: Tehran Lipid and Glucose Study, Iran, 1999–2018

From: Anthropometric indices and the risk of incident sudden cardiac death among adults with and without diabetes: over 15 years of follow-up in The Tehran Lipid and Glucose Study

Number of participants (men) No diabetes With diabetes P-value*
9089 (4040) 1185 (503)
Continuous variables, Mean (SD)
 Age (year) 41.0 (13.9) 55.5 (11.5)  < 0.001
 BMI (kg/m2) 26.6 (4.7) 28.9 (4.6)  < 0.001
 WC (cm) 87.7 (12.0) 96.6 (10.9)  < 0.001
 WHR 0.87 (0.09) 0.94 (0.08)  < 0.001
 WHtR 0.54 (0.08) 0.61 (0.08)  < 0.001
 HC (cm) 100.6 (9.4) 102.6 (9.8)  < 0.001
 SBP (mmHg) 117.2 (17.7) 134.4 (22.9)  < 0.001
 DBP (mmHg) 76.6 (10.8) 82.3 (11.7)  < 0.001
 Pulse rate (beat/ minute) 79.0 (11.4) 80.0 (12.1) 0.004
 FPG (mmol/L)⁑ 5.0 (0.5) 9.1 (3.4)  < 0.001
 Total cholesterol (mmol/L)⁑ 5.2 (1.2) 6.0 (1.3)  < 0.001
Categorical variables, number (%)
 Current smoker 1507 (16.6) 154 (13.0) 0.002
 Education level     < 0.001
  Illiterate/primary school 2710 (29.8)   
  Below diploma/diploma 5029 (55.3) 374 (31.6)  
  Above diploma 1350 (14.9) 76 (6.4)  
Low physical activity, yes 6171 (67.9) 838 (70.7) 0.050
Family history of premature CVD, yes 1389 (15.3) 230 (19.4)  < 0.001
Prevalent CVD at baseline, yes 309 (3.4) 162 (13.7)  < 0.001
Lipid-lowering medication, yes 201 (2.2) 133 (11.2)  < 0.001
Antihypertensive medication, yes 504 (5.5) 273 (23)  < 0.001
  1. BMI body mass index, WC waist circumference, WHR waist-to-hip ratio, WHtR waist-to-height ratio, HC hip circumference, SBP systolic blood pressure, DBP diastolic blood pressure, FPG fasting plasma glucose, CVD cardiovascular disease
  2. Values are shown as Mean (standard deviation: SD) and number (%) for continuous and categorical variables, respectively
  3. *The comparison P-value between two groups was calculated using Student’s two-tailed t-test for continues variables and Chi-square test for categorical variables
  4. ⁑Conversion factors from mmol/L to mg/dL were 18.02 for FPG and 38.67 for total cholesterol