Your privacy, your choice

We use essential cookies to make sure the site can function. We also use optional cookies for advertising, personalisation of content, usage analysis, and social media.

By accepting optional cookies, you consent to the processing of your personal data - including transfers to third parties. Some third parties are outside of the European Economic Area, with varying standards of data protection.

See our privacy policy for more information on the use of your personal data.

for further information and to change your choices.
Skip to main content

Table 1 Baseline characteristics

From: Accelerometer-derived sleep metrics in mild and difficult-to-treat asthma

Variable

Overall n = 124

Mild asthma n = 44

Difficult-to-treat n = 80

p value

Age, years

57 (47 to 64)

60 (48 to 72)

56 (48 to 65)

0.843

Female sex, no. (%)

69 (55.6)

25 (56.8)

44 (55.0)

0.845

Smoking status:

Never smoker

Ex-smoker

Current smoker

69 (55.6)

47 (37.9)

8 (6.5)

30 (68.2)

12 (27.3)

2 (4.5)

39 (48.8)

35 (43.8)

6 (7.5)

0.114

Atopy, no. (%)

55 (44.4)

6 (13.6)

49 (61.3)

< 0.001

Weight, kg

84.6 (73.0 to 99.5)

75.3 (65.7 to 84.9)

92.3 (76.8 to 107.8)

< 0.001

BMI, kg/m2

31.0 (26.5 to 36.4)

25.7 (21.9 to 29.6)

33.6 (28.8 to 38.5)

< 0.001

SABA

122 (98.4)

42 (95.5)

80 (100.0)

0.124

LABA/ICS

101 (81.5)

21 (47.7)

80 (100.0)

< 0.001

Maintenance prednisolone, no. (%)

28 (22.6)

n/a

28 (35.0)

n/a

Biologic, no. (%)

13 (10.5)

n/a

13 (16.3)

n/a

Prednisolone boosts

2 (0 to 4)

0 (0 to 0)

4 (3 to 6)

< 0.001

ACQ6

1.7 (0.5 to 3.0)

0.4 (0.0 to 0.8)

2.7 (1.9 to 3.6)

< 0.001

AQLQ overall

4.6 (3.8 to 6.2)

6.4 (5.9 to 6.9)

4.0 (3.3 to 4.8)

< 0.001

FeNO, ppb

23 (16 to 45)

21 (16 to 26)

33 (12 to 54)

0.023

Eosinophils, x109/L

0.2 (0.1 to 0.4)

0.1 (0.0 to 0.2)

0.3 (0.2 to 0.5)

0.017

  1. Continuous variables described as median (interquartile range)
  2. Categorical variables described as n (%)
  3. p-value compares mild vs. difficult-to-treat groups with Mann Whitney U for continuous and chi square or Fisher’s exact for categorical variables
  4. Abbreviations: ACQ6 (Asthma Control Questionnaire), AQLQ (Asthma Quality of Life Questionnaire), FeNO (fractional exhaled nitric oxide), LABA/ICS (long-acting β-agonist/inhaled corticosteroid combination inhaler), ppb (parts per billion), SABA (short-acting β-agonist inhaler)
Back to article page

Allergy, Asthma & Clinical Immunology

ISSN: 1710-1492

Contact us