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Table 1 Characteristics of the sample at baseline

From: A theory-based online health behaviour intervention for new university students (U@Uni:LifeGuide): results from a repeat randomized controlled trial

Variable   Control Intervention
   % or mean Standard deviation n % or mean Standard deviation n
Demographics
Nationality UK 75.37 961 78.16 1052
  Non-UK 24.63 314 21.84 294
Ethnicity White British 68.67 835 71.65 930
  White other 7.40 90 6.32 82
  Mixed 3.87 47 3.70 48
  Asian and Asian British 5.10 62 5.32 69
  Black and Black British 206 25 2.77 36
  Chinese 10.20 124 8.24 107
  Other 2.71 33 2.00 26
Sex Female 54.87 698 55.81 749
  Male 45.13 574 44.19 593
Age   18.89 2.68 1274 18.73 2.01 1340
Fruit and vegetable intake
 Portions per day 4.48 2.21 1267 4.49 2.34 1344
Physical activity
 Metabolic equivalent of task per week 3665.30 3518.61 1273 3510.02 3276.63 1343
Alcohol consumption
 Total units the in previous 7 days 6.77 9.32 1271 7.15 9.72 1344
 Number of days binge drinking in the last 7 days (drinkers only) 0.52 0.80 833 0.56 0.82 872
 Biochemical marker of alcohol consumption (fatty acid ethyl esters) 3.24 4.09 123 2.60 3.33 90
Smoking
 Has smoked 42.89 1175 44.31 1248
 Current smoker 3.49 1175 2.80 1248
 Cigarettes smoked per week (smokers only) 49.05 38.93 41 53.60 45.95 35
 Smoking marker (cotinine) 0.48 0.44 123 0.44 0.41 90
 Smoking marker (nicotine) 3.89 10.32 123 6.52 17.83 90
Other outcomes
 EQ-5D-3 L
 Health index score from EQ-5D-3 L (visual analogue scale) 0.94 0.12 1249 0.94 0.12 1327
 Health index score from EQ-5D-3 L (time trade off) 0.95 0.11 1249 0.95 0.11 1327
 EQ-5D-3 L visual analogue scale 83.26 12.12 1256 82.01 13.77 1326
 Recreational drugs
 Have taken recreational drugs (single sample count method) 19.11 7.21 1275 17.84 6.79 1336
 Have taken recreational drugs (biochemical marker) 24.39 123 24.44 123
Body mass index
 Self-report 21.78 3.69 1206 21.95 3.88 1274
 Objective 21.67 3.55 123 21.5 3.39 90
Social cognition variables
 Fruit and vegetable intention 4.78 1.59 1150 4.76 1.58 1258
 Physical activity intention 5.72 1.38 1156 5.69 1.43 1263
 Binge drinking intention 3.33 1.90 1156 3.32 1.92 1249
 Smoking intention 1.51 1.29 1173 1.46 1.20 1269