Table 4

The influence of alcohol consumption on repeated assessments of sleep as the main effect of group presented in average change scores

VariablesAverage changedft95 % CI
Assessment 10
Assessment 2†−0.44710.76−3.49***(−0.69 to −0.19)
Assessment 3†−1.02759.76−6.47(−1.33 to −0.71)
Assessment 4†−1.05649.15−5.78(−1.41 to −0.70)
Assessment 5†−1.02632.79−5.76(−1.36 to −0.67)
Assessment 6†− 1.31338.53−5.88(−1.74 to − 0.87)
Gender‡0.14635.910.53(−0.37 to 0.65)
AUDIT-C§0.49660.121.46(−0.17 to 1.15)
  • Assessment 1 is set to zero because it is a redundant.

  • †A negative score means a reduction from assessment 1.

  • ‡A positive score means that the average score of assessments 1–6 shows a larger reduction from assessment 1 in women as compared with men.

  • §A positive score means that the average score of assessments 1–6 shows a larger reduction from assessment 1 in non-hazardous as compared with hazardous drinkers.

  • *P<0.05, **P<0.01, ***P<0.001.

  • AUDIT-C,  Alcohol  Use  Disorder Identification Test-Consumption.