Baseline demographic and health characteristics of 562 participants randomised to either iCBT (E-couch) or attention control health information (HealthWatch).

*Scaled 0–100.**Missing data for one participant who did not complete baseline assessment.***Prior Diagnosis of Cardiovascular Disease includes doctor diagnosis of any one of Heart Disease, Stroke or Hypertension.$At least 150 mins of activity over at least 5 sessions each week.#Other comorbid conditions include: cancer (skin, prostate, breast or other cancer), blood clot (thrombosis), asthma, Parkinson’s disease, osteoarthritis, and/or thyroid problems.##Treatment for any Cardiovascular Disease includes: any one of heart attack/angina, other heart disease, hypertension or high blood cholesterol.