Table 1

Characteristics and environmental exposure in non-snorers and snorers (% and mean±SD)

Non-snorers
(n=21 637)
Habitual snores
(n=4211)
P value
Men42.362.6<0.0001
Age42.1±16.050.0±13.9<0.0001
Smoking history<0.0001
 Never63.745.7
 Ex23.634.2
 Current12.720.1
BMI24.3±3.927.1±4.6<0.0001
Educational level<0.0001
 Primary school12.418.5
 Secondary school28.535.8
 Tertiary School59.145.8
Indoor dampness
Water damage7.08.30.002
Floor dampness3.84.60.02
Visible moulds3.85.2<0.0001
Air pollution in residential area<0.0001
 Never83.079.2
 Sometimes13.916.2
 Daily3.14.6
Air pollution from traffic<0.0001
 None77.976.0
 Somewhat18.519.0
 Very much3.65.0
  • BMI, body mass index.