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Table 1 Characteristics of the study population categorized by BMI

From: Comparative analysis of gut microbiota associated with body mass index in a large Korean cohort

  Normal Overweight Obese Trend P valuea Total
Subjectsb 529 326 419   1274
Male% 41.6 72.4 85.0   63.7
Age (years) 45.3 (9.3) 46.3 (9.0) 45.8 (8.5) 0.302 45.7 (9.0)
BMI (kg/m2) 21.1 (1.4) 24.0 (0.6) 27.2 (2.1) <0.0001 23.8 (3.0)
Fat mass (kg) 13.9 (3.0) 16 .9 (3.7) 22.0 (5.0) <0.0001 17.5 (5.3)
Glucose (mg/dl) 92.6 (11.1) 95.9 (14.8) 98.8 (17.3) <0.0001 96.2 (15.3)
Triglycerides (mg/dl) 94.5 (49.6) 119.7 (70.1) 147.5 (84.3) <0.0001 119.9 (72.1)
HDL cholesterol (mg/dl) 62.6 (14.5) 55.4 (13.6) 49.8 (11.2) <0.0001 56.3 (14.2)
Systolic BP (mmHg) 104.1 (11.7) 110.8 (11.7) 116.8 (13.0) <0.0001 110.2 (13.1)
Diastolic BP (mmHg) 67.8 (9.1) 71.3 (9.2) 75.6 (10.2) <0.0001 71.3 (10.0)
Insulin (ulU/ml) 4.2 (2.4) 5.4 (3.0) 7.5 (4.7) <0.0001 5.7 (3.8)
HbA1c (%) 5.5 (0.4) 5.6 (0.4) 5.6 (0.5) 0.180 5.6 (0.5)
HOMA-IR 1.0 (0.6) 1.3 (0.9) 1.9 (1.4) 0.003 1.4 (1.1)
Hypertensionb 14 19 56 <0.0001 89
Type 2 Diabetes (T2DM)b 12 15 15 0.191 42
Med. Of T2DMb 10 7 9 0.965 26
Subjects with nutrient informationb 387 245 308   940
Male% 40.8 71.8 84.7   65.4
Total calorie (kcal/day) 1423.5 (603.8) 1543.7 (679.8) 1596.9 (669.5) 0.001 1512.3 (649.9)
Carbohydrate (g/day)c 251.2 (47.8) 257.3 (46.7) 251.2 (50.2) 1.000 253.0 (46.7)
Fiber (g/day)c 13.1 (5.6) 12.8 (5.5) 12.4 (5.0) 0.064 12.8 (5.4)
Fat (g/day)c 27.0 (11.9) 26.8 (12.7) 28.3 (12.6) 0.211 27.4 (12.2)
Protein (g/day)c 49.7 (11.0) 50.0 (10.6) 51.0 (10.7) 0.156 50.3 (10.7)
  1. Data are presented as mean (SD)
  2. BMI body mass index, HDL high-density lipoprotein, BP blood pressure, HbA1c Hemoglobin A1c, HOMA-IR homeostasis model assessment-estimated insulin resistance (insulin (μU/mL) × glucose (mg/dL)/405)
  3. aTrend P value from multiple logistic regression analysis
  4. bCount data
  5. cNutrients adjusted for energy using the residual method