Research Article

Mean Platelet Volume in Patients with Obstructive Sleep Apnea and Its Relationship with Simpler Heart Rate Derivatives

Table 1

Anthropometric, clinical features, and biochemical variables of the two groups.

VariablesOSA ()Controls () value

Age, years48 ± 1144 ± 110.101a
Male, (%)39 (75)21 (70)0.623c
Body mass index, kg/m232 (25–47)28.5 (20–49)0.07b
Fasting glucose, mg/dL91 (75–99)89 (74–99)0.562b
Triglycerides, mg/dL126 (45–147)124 (57–149)0.308b
HDL cholesterol, mg/dL41 (27–82)45 (28–76)0.175b
LDL cholesterol, mg/dL119 ± 28116 ± 290.818a
Creatinine, mg/dL0.85 (0.5–1.4)0.81 (0.5–1.3)0.667b
C-reactive protein, mg/dL4.3 (0.3–6.1)3.6 (0.1–5.6)0.166b
Fibrinogen, mg/dL326 ± 71311 ± 620.424a
Hemoglobin, mg/dL14.5 (11–16)14.4 (11–16)0.606b
RDW13.2 (9–19)13.6 (12–19)0.307b
White blood cells, /mm36.8 ± 1.67.2 ± 1.90.329a
Neutrophil/mm33.9 (2.4–5.9)3.9 (1.3–6.6)0.270b
Lymphocyte/mm32.7 (1.9–6.3)2.5 (2.1–4.7)0.577b
Neutrophil/lymphocyte1.5 (0.5–3.4)1.5 (0.5–4.4)0.551b
Platelet count (×109/L)259 ± 62235 ± 44.70.07a
Mean platelet volume (fL)8.5 ± 1.18.8 ± 0.80.09a
Apnea hypopnea index score29 (8–75)1 (0–4)<0.001c
SaO2 < 90%, PRTS27 ± 121.2 ± 0.8<0.001a
Mild-Moderate OSA, (%)28 (53.8)0<0.001c
Severe OSA, (%)24 (46.2)0<0.001b
Duration of OSA, years4 ± 10<0.001a
Minimum HR-PSG 31 (25–60)31 (25–63)0.465b
Maximum HR-PSG 131 (68–150)124 (96–148)0.832b
Maximum HR-minimum HR PSG91 ± 2389 ± 220.645a
Mean HR-PSG67 ± 869 ± 90.312a
HRPI-PSG 1.4 ± 0.41.3 ± 0.40.494a
Sleep time, minutes392 ± 36385 ± 440.644a

Abbreviations: HDL: high-density lipoprotein; LDL: low-density lipoprotein; RDW: red blood cell distribution width; HR: heart rate (beats/minute), PRTS: percentage of recording time spent; SaO2: arterial oxygen saturation; PSG: polysomnography. aStudent’s -test. bMann-Whitney test. cChi-square test.