Table 1

Characteristics of participants overall and as a function of their smoking and high-risk drinking status

Overall (n=53 922)Smoker (n=9999)Non-smoker (n=43 923)High-risk drinker (n=7869)Non-high-risk drinker and non-drinkers (n=46 053)
Per cent95% CIPer cent95% CIPer cent95% CIPer cent95% CIPer cent95% CI
LowerUpperLowerUpperLowerUpperLowerUpperLowerUpper
Female51.150.351.851.851.252.547.546.048.939.137.440.853.052.453.7
Age
 16–2414.313.615.118.116.419.913.512.614.323.821.925.712.711.913.6
 25–3416.716.017.522.020.323.715.514.716.417.715.719.716.615.717.4
 35–4416.715.917.518.717.020.516.215.417.117.315.319.316.615.717.4
 45–5417.416.618.118.316.520.117.216.318.019.817.821.817.016.117.8
 55–6414.013.314.812.610.814.414.413.515.212.710.614.814.313.415.1
 65+20.820.121.610.28.412.123.222.424.18.76.610.822.922.123.7
Ethnicity
 White86.185.886.490.589.891.185.184.885.596.395.996.884.484.084.7
 Mixed/multiple ethnic group1.20.42.01.40.03.41.10.22.11.20.03.41.20.32.1
 Asian or British Asian8.17.38.94.82.96.78.98.09.80.90.003.19.38.510.2
 Black African/Caribbean/Black British3.12.23.91.70.03.63.42.54.30.80.003.03.52.64.4
 Other ethnic group1.50.72.31.60.03.61.50.62.40.80.003.01.60.72.5
Social grade
 AB26.625.827.314.012.115.830.029.230.829.827.931.626.625.827.3
 C127.026.227.823.521.825.228.327.529.130.028.231.927.026.227.8
 C222.021.222.826.424.828.121.020.121.822.120.224.122.021.222.8
 D15.814.916.620.819.022.513.812.914.610.98.813.015.814.916.6
 E8.77.89.615.313.517.16.96.07.87.25.09.38.77.89.6
Education
 University education30.730.031.417.715.919.533.732.934.432.030.133.830.529.731.2
 A-level and equivalent18.717.919.419.117.320.918.617.719.426.324.428.217.416.618.2
 GCSE/vocational28.427.729.136.835.338.426.525.627.327.926.029.728.527.729.2
 Other/still studying7.56.78.36.64.78.47.76.88.66.44.38.67.76.88.6
 None14.713.915.519.818.021.513.612.714.47.55.39.616.015.116.8
Income
 £40 000+31.030.331.822.620.924.433.032.133.818.118.118.129.628.730.4
 £17 500 to £399932.531.733.231.529.733.332.731.833.518.118.118.132.731.933.6
 £9500 to £17 49918.617.819.320.618.822.518.117.219.018.118.118.119.518.620.3
 <£11 49917.917.218.725.223.427.016.315.417.218.118.118.118.317.419.1
In full-time employment48.647.949.348.246.849.647.346.648.040.939.242.648.647.949.3
Composite SES score
 1st quartile (high)29.929.230.616.114.317.933.032.233.835.033.236.829.028.229.8
 2nd quartile24.223.525.022.120.423.924.723.925.627.125.129.023.822.924.6
 3rd quartile24.623.825.329.427.731.123.522.624.324.022.026.024.723.825.5
 4th quartile (low)21.320.622.132.330.734.018.818.019.714.011.916.022.621.823.4