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Table 1 Baseline characteristiecs and biochemical assessments

From: Increased blood glycohemoglobin A1c levels lead to overestimation of arterial oxygen saturation by pulse oximetry in patients with type 2 diabetes

Variables

HbA1c≤7% (n=147)

HbA1c>7% (n=114)

P Value

Male gender (%)

104(70.7)

78(68.4)

0.685

Age (yrs)

67±6

69±7

0.01

Chronic obstructive pulmonary disease (%)

98(66.7)

81(71.1)

0.449

Cardiogenic pulmonary edema (%)

13(8.8)

17(14.9)

0.127

Pneumonia (%)

40(27.2)

46(40.4)

0.025

Hypertension (%)

49(33.3)

40(35.1)

0.243

Systolic blood pressure (mmHg)

131±9

132±9

0.374`

Diastolic blood pressure (mmHg)

75±8

76±8

0.317

Red blood cell (x1012/L)

4.75±0.73

4.91±0.77

0.088

Hemoglobin (g/L)

132±12

134±13

0.199

Body temperature (°C)

37.3±0.1

37.4 ± 0.1

<0.001

Total cholesterol (mmo1/L)

4.06±0.91

4.17±0.95

0.343

HDL-cholesterol (mmo1/L)

1.19±0.26

1.17±0.27

0.545

LDL-cholesterol (mmo1/L)

2.43±0.62

2.41±0.68

0.805

Triglycerides (mmo1/L)

1.72±0.75

1.91± 0.78

0.047

Fasting Glucose (mmo1/L)

5.9±1.8

9.4±2.1

<0.001

2-h postprandial glucose (mmo1/L)

9.2±4.1

13.9± 4.5

<0.001

HbA1c (%)

5.6±1.2

9.2±2.1

<0.001

Blood urea nitrogen (mmo1/L)

5.42±2.35

6.03±2.51

0.045

Creatinine (μmo1/L)

87±16

91±18

0.59

Medical treatments

   

 ACEI or ARB (%)

46(31.3)

37(32.5)

0.841

 Calcium channel blocker (%)

14(9.5)

12(10.5)

0.789

 Statins* (%)

121(82.3)

97(85.1)

0.549

 Metformin (%)

52(35.4)

45(39.5)

0.497

 Sulphonylureas (%)

56(38.1)

37(32.5)

0.345

 Alpha-glucosidase (%)

54(36.7)

46(40.3)

0.551

 PPAR-gamma agonist (%)

23(15.6)

15(13.2)

0.572

  1. Data are mean ± SD or number (%).
  2. Abbreviation: HbA1c, Glycosylated hemoglobin A1c; HDL, High-density lipoprotein.
  3. LDL, low-density lipoprotein; ACEI, andgiotensin-converting enzyme inhibitor.
  4. ARB, angiotensin II receptor blocker.
  5. *Statins: mainly simvastatin, pravastatin and atorvastatin.