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Table 1 Baseline characteristics of the study cohort

From: Association of secreted frizzled-related protein 4 (SFRP4) with type 2 diabetes in patients with stable coronary artery disease

  Percentage (number) median (IQR)
N 504
Age (years) 68 (59, 74)
Male 83.3 (420)
Clinical characteristics  
Smoking (active) 18.8 (99)
Alcohol regularly 23.8 (120)
Positive family history 31 (156)
Hyperlipidemia 86.3 (435)
Diabetes mellitus (treated) 32.7 (165)
Arterial hypertension 92.7 (467)
Systolic blood pressure (mm Hg) 125 (120, 140)
Diastolic blood pressure (mm Hg) 80 (70, 80)
Body mass index (kg/m 2 ) 28 (26, 31)
Waist circumference (cm) 102 (73, 139)
Waist-to-hip ratio 1.0 (0.96, 1.05)
Metabolic characterization  
Normal glucose tolerance 24.4 (123)
Impaired glucose tolerance 28.4 (143)
Diabetes mellitus (treated & newly diagnosed) 47.2 (238)
Metabolic syndrome 64.9 (327)
Fasting glucose (mg/dl) 110 (101, 132)
HOMA index (mg/dl*μIU/ml) 2.3 (1.3, 4.1)
HbA1c (%)* 5.8 (5.5, 6.5)
Total cholesterol (mg/dl) 167 (143, 199)
HDL cholesterol (mg/dl) 43 (35, 53)
LDL cholesterol (mg/dl) 100 (80, 129)
Fasting triglycerides (mg/dl) 126 (96, 175)
Postprandial triglycerides, maximum (mg/dl) 237 (175, 347)
Postprandial triglycerides, AUC (mg/dl) 905 (665, 1278)
C-reactive protein (mg/l) 2.2 (0.9, 4.9)
SFRP4 (μg/l) 11.21 (9.17, 13.86)
  1. Categorical variables are shown as rate (number). Plus-minus values are depicted as median (interquartile range). Active smoking was regular tobacco use at or within 12 months prior to enrolment. Regular alcohol use was consumption of any alcoholic beverage >3 times/week. The HOMA (Homeostasis Model Assessment) index is the fasting glucose concentration (in milligrams per deciliter) multiplied by the fasting insulin concentration (in microunits per milliliter) divided by 405.
  2. *HbA1c was missing in 23 patients.