Skip to main content

Table 1 Profile of the study sample

From: Smoking and tooth discolouration: findings from a national cross-sectional study

Sex Male 1500 (44.3%)
  Female 1884 (55.7%)
Age 16–34 957 (28.3%)
  35–54 1214 (35.9%)
  55+ 1213 (35.8%)
Education High education 748 (22.1%)
  Middle education 1304 (38.5%)
  Lower education 1332 (39.4)
Income Average or higher than national average 1046 (30.9%)
  Lower than average 2338 (69.1%)
Smoking Smoker 817 (24.1%)
  Non smoker 2567 (75.9%)