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Table 1 Baseline characteristics

From: Birt-Hogg-Dubé syndrome: a large single family cohort

Characteristic

Value

Age at Diagnosis, yrs

42 (3.1)

Male:Female

18:18

BMI, kg/m2

25.7 (0.85)

Smokers, n (%)

 

 Current

3 (9)

 Former

4 (11)

 Never

17 (47)

 Unknown status

12 (33)

Smoking, pack years

6.9 (3.05)

FEV1, L

3.32 (0.21)

FEV1 (% pred)

92 (3.64)

FVC, L

4.40 (0.27)

FVC (% pred)

101 (4.10)

FEV1/FVC

74.8 (2.07)

DLCO, mL/min/mmHg

33.32 (2.26)

DLCO (% pred)

130 (6.72)

DLCO/VA, mL/min/mmHg

27.1 (3.66)

DLCO/VA (% pred)

130 (5.67)

DLCO, mL/min/mmHg (Asthmatics excluded)

33.0 (2.56)

DLCO (% pred) (Asthmatics excluded)

133.9 (7.40)

Asthma diagnosis, n (%)

6 (17)

  1. Asthma was defined as full reversibility of airflow obstruction following bronchodilator administration or a positive methacholine challenge test. Data are shown as mean (SD)
  2. Abbreviations: BMI body mass index, DL CO diffusing capacity for carbon monoxide, FEV1 forced expiratory volume in one second, FRC functional residual capacity, FVC forced vital capacity