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Table 1 Characteristics of the 983 subjects included in the study

From: Quantification of atopy, lung function and airway hypersensitivity in adults

Variable

  

Total (n)*

% of Total Subjects

Age (y)

Mean

(Range)

  
 

48.3

(19.8-72.9)

983

100.0

Gender - male

n

(%)

  
 

416

(42.3)

983

100.0

BMI (%)

Mean

(SD)

  
 

27.2

5.1

769

78.2

Asthma

n

(%)

  

Current Asthma

312

(31.74)

983

100.0

Airway Hyperresponsiveness (AHR)

n

(%)

  

AHR-MDRS>25

100

(15.97)

626

63.7

 

GM

(Range)

  

MDRS

8.229

(0.0-17592.5)

626

63.7

Current Asthma with AHR

n

(%)

  

Current Asthma + AHR-MDRS>25

64

(10.22)

626

63.7

Lung Function

Mean

(SD)

  

FVC % predicted

111.86

(16.01)

790

80.4

FEV 1 % predicted

101.20

(18.41)

792

80.6

FEV 1 /FVC

75.84

(8.71)

790

80.4

Atopy

n

(%)

  

SPT

402

55.07

730

74.3

sIgE

473

63.24

748

76.1

Smoking

n

(%)

  

Ever smokers

396

(40.28)

983

100.0

Current smokers

114

(11.60)

983

100.0

 

GM

(Range)

  

Smoke-pack-years

0.0006

(0.0 -104.59)

981

99.8

Pet ownership

n

(%)

  

Cat owner (current)

171

21.22

806

81.99

Dog owner (current)

142

17.62

806

81.99

Cat or dog owner (current)

277

34.37

806

81.99

Indoor allergen exposure (μg/g)

GM

(Range)

  

Mite (Der p 1)

2.59

(0.20-188.67)

953

96.95

Cat (Fel d 1)

1.42

(0.04-5377.61)

951

96.75

Dog (Can f 1)

0.96

0.20-3361.02)

948

96.44

  1. *Total number of patients with available data; BMI - Body mass index; AHR - Airway Hyperresponsiveness; MDRS - methacholine dose-response slope; SPT - skin prick tests; sIgE - serum specific Immunoglobulin E; GM - Geometric mean.
  2. Notes: Current Asthma - Physician-diagnosed asthma with asthma symptoms and/or use of asthma medication in the last 12 months[26]; f or MDRS, GM calculated from tMDRS(= 100/(MDRS+10)[27, 30]; for smoke-pack-years and indoor allergen exposure, GM calculated from loge transformation.