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Table 4 Clinical and laboratory characteristics of type 1 diabetic patients compared by ISS quartiles

From: Insulin resistance and associated factors in patients with Type 1 Diabetes

Variables

ISS 1stquartile

ISS 2ndand 3rdquartiles

ISS4thquartile

P value

Patients

n = 34 (25.2%)

n = 68 (50.4%)

n = 33 (24.4%)

 

Gender (Male)

18 (52.9%)

30 (44.1%)

10 (30.3%)

0.063

Age (years)

32 (15–68)

27 (12–62)

25 (15–55)

0.016

Duration of diabetes (years)

17 (1–49)

16 (2–43)

10 (0–27)

0.020

BMI (kg/m2)

27.5 (19–46)

24 (17–30)

21 (18–26)

< 0.001

Waist/height ratio (cm)

56.8 (40.5-78.8)

49.0 (38.7-61.9)

43.7 (36.1-51.7)

< 0.001

Total insulin dose IU/Lean Mass (kg)§

1.43 (0.53-3.35)

1.05 (0.46-1.77)

0.92 (0.19-1.63)

0.002

Total lean mass (kg)§

0.63 (0.5-0.9)

0.74 (0.5-1.0)

0.79 (0.7-0.9)

0.001

Thoracoabdominal fat (kg)§

13.13 (7.2-28.7)

6.28 (1.0-13.6)

3.4 (1.5-6.9)

< 0.001

Leg fat (kg)§

7.10 (3.6-12.9)

5.45 (0.9-16.3)

4.76 (1.8-10.4)

0.011

Arm fat (kg)§

2.65 (1.2-6.8)

1.36 (0.2-4.9)

0.816 (0.2-2.2)

0.001

Total lean mass percentage§

0.63 (0.5-0.9)

0.74 (0.5-1.0)

0.79 (0.7-0.9)

0.001

Total fat percentage§

0.37 (0.18-0.50)

0.25 (0.05-0.49)

0.20 (0.08-0.34)

< 0.001

Thoracoabdominal fat percentage§

0.33 (0.22-0.50)

0.21 (0.05-0.41)

0.16 (0.06-0.68)

< 0.001

Leg fat percentage§

0.35 (0.14-0.48)

0.33 (0.06-0.60)

0.29 (0.11-0.49)

0.237

Arm fat percentage§

0.39 (0.16-0.59)

0.28 (0.04-0.56)

0.18 (0.04-0.41)

0.001

Triceps skinfold (mm)

21.7 (9.7-26.6)

15.7 (4.3-30.0)

15.0 (5.3-25.7)

0.003

Scapular skinfold (mm)

24.3 (14.7-41.7)

16.0 (6.3-36.0)

12.0 (6.3-23.7)

< 0.001

Acanthosis (yes)*

6 (19.4%)

3 (4.6%)

1 (3.1%)

0.013

Physical activity (yes)

19 (57.6%)

43 (63.2%)

22 (66.7%)

0.447

Family history of DM2 (yes)

25 (78.1%)

44 (66.7%)

24 (75%)

0.783

Total insulin dose (IU/day)

60 (34–340)

46 (17–111)

36 (8–85)

< 0.001

Total cholesterol (mg/dL)

169 (117–282)

167 (76–332)

162 (76–250)

0.268

HDL (mg/dL)

46 (27–87)

57 (35–107)

56 (32–124)

0.004

LDL (mg/dL)

99 (49–178)

96 (20–252)

88 (35–150)

0.127

  1. P-value: Jonckheere-Terpstra test, Chi-square for trends, Fisher Exact Test* for comparisons of medians, frequencies and frequencies.
  2. Body mass index = weight (kg)/height (m)2.
  3. §Patients who underwent densitometry for the analysis of body composition (n = 64).