Table 1 Demographic, anthropometric, clinical characteristics of patients.

From: Impact of obstructive sleep apnea on functional performance and muscle quality of patients with COPD

Variables

COPD (n = 22)

COPD-OSAS (n = 22)

p value

Sociodemographics

   

Male n (%)

10 (45.45)

17 (72.27)

0.03

Age (years)

64 ± 6.9

68 ± 8.9

0.14

Weight (kg)

61.7 ± 15.3

71.7 ± 17.4

0.06

Height (cm)

163 ± 0.09

166 ± 0.10

0.12

BMI (kg/m²)

23.1 ± 4.7

25.7 ± 6.1

0.08

Pulmonary Function

   

FEV1(L)

1.26 ± 0.4

1.40 ± 0.7

0.72

FEV1%pred.

52.7 ± 17.5

54.8 ± 16.7

0.55

FVC (L)

2.6 ± 0.7

2.7 ± 0.8

0.61

FVC %pred.

87.7 ± 17.9

79.4 ± 24.6

0.16

FEV1/FVC

0.49 ± 0.10

0.51 ± 0.13

0.38

Polysomnographic

   

AIH (/h)

3.4 ± 1.2

16.9 ± 14.9

< 0.0001

ODI (/h)

6.7 ± 3.4

21.9 ± 10.9

< 0.0001

SpO2 media (%)

89.4 ± 2.6

87.6 ± 3.2

0.40

SpO2 < 90% (%total sleep)

58.4 ± 29.7

78.6 ± 19.8

0.02

Severity OSAS % (Mild/Moderate/Severe)

-

(54,5/36,4/9,1)

-

Medications

   

SABA n (%)

16 (72.7)

15 (61.2)

0.75

LABA n (%)

11 (50)

9 (40.9)

0.56

LAMA n (%)

4 (18.2)

7 (31.2)

0.31

IC n (%)

11 (50)

10 (45.5)

0.96

Antihypertensive n (%)

4 (18.2)

4 (18.2)

0.99

Level of physical activity

   

Baecke Questionnaire

2.9 ± 2.2

2.2 ± 1.5

0.32

  1. Data expressed as means ± SD. COPD: Chronic obstructive pulmonary disease; OSA: Obstructive Sleep Apnea Syndrome; BMI: body mass index; FEV1: forced expiratory volume in the first second; FEV1/FVC: forced expiratory volume in the first second/forced vital capacity; AHI: apnea and hypopnea index per hour; ODI: desaturation index during sleep per hour; SpO2: peripheral oxygen saturation. SABA: short-acting beta agonists; LABA: long-acting beta agonists; LAMA; IC: inhaled corticosteroids; HGS; Hand Grip Strength.