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Table 2 Profile of treatment attributes and attribute levels

From: Outcomes associated with matching patients' treatment preferences to physicians' recommendations: study methodology

Treatment Attribute Attribute Levels (categories)
Treatment durationa Each treatment will take:
• 5 minutes to complete.
• 15 to 30 minutes to complete.
• 1 hour to complete.
• 2 hours to complete.
Treatment frequency a My treatment will occur:
• Once every three months.
• Once every two weeks.
• Two times each week.
• Twice daily.
Treatment cost a I will have to pay:
• Nothing to cover the cost of my treatments.
• An additional 50 € per month to cover the cost of my treatments.
• An additional 100 € per month to cover the cost of my treatments.
• An additional 200 € per month to cover the cost of my treatments.
Treatment location a My treatment will take place:
• At home.
• At home with follow-up at my local doctor's office.
• At an outpatient clinic.
• While I stay in the hospital for three weeks.
Treatment delivery method a My treatment will occur by:
• Applying medication on my skin.
• Taking Tablets.
• Having an injection/intravenous infusion.
• Light therapy.
Magnitude of beneficial effect b I will likely experience:
• Almost a 100% reduction in my psoriasis plaques.
• About a 75% reduction in my psoriasis plaques.
• About a 50% reduction in my psoriasis plaques.
• About a 25% reduction in my psoriasis plaques.
Duration of beneficial effect b The improvement in my psoriasis will last for:
• 1 year or more after completing all of my treatments.
• 6 to 8 months after completing all of my treatments.
• 3 to 5 months after completing all of my treatments.
• 2 weeks after completing all of my treatments.
Probability of side effects b There is:
• Almost a 100% chance that I will experience side effects from the treatment.
• About a 50% chance that I will experience side effects from the treatment.
• About a 10% chance that I will experience side effects from the treatment.
• Less than 1% chance that I will experience side effects from the treatment.
Probability of beneficial effect b I have:
• Almost a 100% chance of experiencing a significant reduction in my psoriasis.
• About an 80% chance of experiencing a significant reduction in my psoriasis.
• About a 60% chance of experiencing a significant reduction in my psoriasis.
• About a 40% chance of experiencing a significant reduction in my psoriasis.
Reversibility of side effects b If side effects occur, there is:
• Almost 100% chance that I will completely recover once my treatments are stopped.
• About an 80% chance that I will completely recover once my treatments are stopped.
• About a 60% chance that I will completely recover once my treatments are stopped.
• About a 40% chance that I will completely recover once my treatments are stopped.
Side effect severity b I may experience:
• Temporary, minor discomfort on my skin.
• Constant, moderate discomfort on my skin.
• Temporary, moderate side effects that can effect more than my skin.
• Severe side effects that can effect more than my skin.
  1. Note: (a) = Process attributes and levels; (b) = Outcome attributes and levels